chore(owlry): bump version to 1.0.6

chore(owlry-core): bump version to 1.2.1
refactor: rename daemon binary from owlry-core to owlryd
2026-03-28 12:40:20 +01:00 · 2026-03-28 12:40:18 +01:00 · 2026-03-28 12:39:37 +01:00 · 2026-03-28 12:26:40 +01:00 · 2026-03-28 12:26:15 +01:00 · 2026-03-28 12:25:33 +01:00
32 changed files with 3596 additions and 260 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2536,7 +2536,7 @@ dependencies = [

 [[package]]
 name = "owlry"
-version = "1.0.5"
+version = "1.0.6"
 dependencies = [
 "chrono",
 "clap",
@@ -2557,7 +2557,7 @@ dependencies = [

 [[package]]
 name = "owlry-core"
-version = "1.1.3"
+version = "1.2.1"
 dependencies = [
 "chrono",
 "ctrlc",
--- a/README.md
+++ b/README.md
@@ -13,7 +13,8 @@ A lightweight, owl-themed application launcher for Wayland, built with GTK4 and
 - **Client/daemon architecture** — Instant window appearance, providers stay loaded in memory
 - **Modular plugin architecture** — Install only what you need
 - **Fuzzy search with tags** — Fast matching across names, descriptions, and category tags
- **14 native plugins** — Calculator, clipboard, emoji, weather, media, and more
+- **Built-in calculator, converter, and system actions** — Works out of the box
+- **11 optional plugins** — Clipboard, emoji, weather, media, and more
 - **Widget providers** — Weather, media controls, and pomodoro timer at the top of results
 - **Config profiles** — Named mode presets for different workflows
 - **Filter prefixes** — Scope searches with `:app`, `:cmd`, `:tag:development`, etc.
@@ -28,17 +29,11 @@ A lightweight, owl-themed application launcher for Wayland, built with GTK4 and
 ### Arch Linux (AUR)

 ```bash
-# Minimal core (applications + commands only)
+# Core (includes calculator, converter, system actions)
 yay -S owlry

-# Add individual plugins
-yay -S owlry-plugin-calculator owlry-plugin-weather
-
-# Or install bundles:
-yay -S owlry-meta-essentials  # calculator, converter, system, ssh, scripts, bookmarks
-yay -S owlry-meta-widgets     # weather, media, pomodoro
-yay -S owlry-meta-tools       # clipboard, emoji, websearch, filesearch, systemd
-yay -S owlry-meta-full        # everything
+# Add individual plugins as needed
+yay -S owlry-plugin-bookmarks owlry-plugin-weather owlry-plugin-clipboard

 # For custom Lua/Rune plugins
 yay -S owlry-lua   # Lua 5.4 runtime
@@ -52,7 +47,7 @@ yay -S owlry-rune  # Rune runtime
 | Package | Description |
 |---------|-------------|
 | `owlry` | GTK4 UI client |
-| `owlry-core` | Headless daemon (plugin host, IPC server) |
+| `owlry-core` | Headless daemon with built-in calculator, converter, and system providers |
 | `owlry-lua` | Lua 5.4 script runtime for user plugins |
 | `owlry-rune` | Rune script runtime for user plugins |

@@ -61,28 +56,18 @@ yay -S owlry-rune  # Rune runtime
 | Package | Description |
 |---------|-------------|
 | `owlry-plugin-bookmarks` | Firefox, Chrome, Brave, Edge bookmarks |
-| `owlry-plugin-calculator` | Math expressions (`= 5+3`) |
 | `owlry-plugin-clipboard` | History via cliphist |
-| `owlry-plugin-converter` | Unit and currency conversion |
 | `owlry-plugin-emoji` | 400+ searchable emoji |
 | `owlry-plugin-filesearch` | File search (`/ filename`) |
 | `owlry-plugin-media` | MPRIS media controls |
 | `owlry-plugin-pomodoro` | Pomodoro timer widget |
 | `owlry-plugin-scripts` | User scripts |
 | `owlry-plugin-ssh` | SSH hosts from `~/.ssh/config` |
-| `owlry-plugin-system` | Shutdown, reboot, suspend, lock |
 | `owlry-plugin-systemd` | User services with actions |
 | `owlry-plugin-weather` | Weather widget |
 | `owlry-plugin-websearch` | Web search (`? query`) |

-**Meta bundles:**
-
-| Package | Includes |
-|---------|----------|
-| `owlry-meta-essentials` | bookmarks, calculator, converter, scripts, ssh, system |
-| `owlry-meta-tools` | clipboard, emoji, filesearch, systemd, websearch |
-| `owlry-meta-widgets` | media, pomodoro, weather |
-| `owlry-meta-full` | All plugins + runtimes |
+> **Note:** Calculator, converter, and system actions are built into `owlry-core` and no longer require separate plugin packages.

 ### Build from Source

@@ -141,22 +126,22 @@ Add to your compositor config:

 ```bash
 # Hyprland (~/.config/hypr/hyprland.conf)
-exec-once = owlry-core
+exec-once = owlryd

 # Sway (~/.config/sway/config)
-exec owlry-core
+exec owlryd
 ```

 **2. Systemd user service**

 ```bash
-systemctl --user enable --now owlry-core.service
+systemctl --user enable --now owlryd.service
 ```

 **3. Socket activation (auto-start on first use)**

 ```bash
-systemctl --user enable owlry-core.socket
+systemctl --user enable owlryd.socket
 ```

 The daemon starts automatically when the UI client first connects. No manual startup needed.
--- a/aur/owlry-core/.SRCINFO
+++ b/aur/owlry-core/.SRCINFO
@@ -1,13 +1,13 @@
 pkgbase = owlry-core
 	pkgdesc = Core daemon for the Owlry application launcher — manages plugins, providers, and search
-	pkgver = 1.1.2
+	pkgver = 1.2.0
 	pkgrel = 1
 	url = https://somegit.dev/Owlibou/owlry
 	arch = x86_64
 	license = GPL-3.0-or-later
 	makedepends = cargo
 	depends = gcc-libs
-	source = owlry-core-1.1.2.tar.gz::https://somegit.dev/Owlibou/owlry/archive/owlry-core-v1.1.2.tar.gz
-	b2sums = 2445d097fd6472fd2b6db063ed3f68dc4c5707dfb3fab23b3b9b6b5231732a4df9502112337a513ec7c34a2e613ea895af3bddd54dcfd58b104c0265c1c78034
+	source = owlry-core-1.2.0.tar.gz::https://somegit.dev/Owlibou/owlry/archive/owlry-core-v1.2.0.tar.gz
+	b2sums = 5e23b41ad12e3e0577213059e2509a9b42e3081b17944e300831e4cfa216628d5190e64d9fd72edc3aa34aebb387d3821ae1d9edd157acf1abf2e5b81f778fd7

 pkgname = owlry-core
--- a/aur/owlry-core/PKGBUILD
+++ b/aur/owlry-core/PKGBUILD
@@ -1,6 +1,6 @@
 # Maintainer: vikingowl <christian@nachtigall.dev>
 pkgname=owlry-core
-pkgver=1.1.2
+pkgver=1.2.0
 pkgrel=1
 pkgdesc='Core daemon for the Owlry application launcher — manages plugins, providers, and search'
 arch=('x86_64')
@@ -9,7 +9,7 @@ license=('GPL-3.0-or-later')
 depends=('gcc-libs')
 makedepends=('cargo')
 source=("$pkgname-$pkgver.tar.gz::https://somegit.dev/Owlibou/owlry/archive/owlry-core-v$pkgver.tar.gz")
-b2sums=('2445d097fd6472fd2b6db063ed3f68dc4c5707dfb3fab23b3b9b6b5231732a4df9502112337a513ec7c34a2e613ea895af3bddd54dcfd58b104c0265c1c78034')
+b2sums=('5e23b41ad12e3e0577213059e2509a9b42e3081b17944e300831e4cfa216628d5190e64d9fd72edc3aa34aebb387d3821ae1d9edd157acf1abf2e5b81f778fd7')

 prepare() {
    cd "owlry"
@@ -33,9 +33,9 @@ check() {

 package() {
    cd "owlry"
-    install -Dm755 "target/release/owlry-core" "$pkgdir/usr/bin/owlry-core"
-    install -Dm644 "systemd/owlry-core.service" "$pkgdir/usr/lib/systemd/user/owlry-core.service"
-    install -Dm644 "systemd/owlry-core.socket" "$pkgdir/usr/lib/systemd/user/owlry-core.socket"
+    install -Dm755 "target/release/owlryd" "$pkgdir/usr/bin/owlryd"
+    install -Dm644 "systemd/owlryd.service" "$pkgdir/usr/lib/systemd/user/owlryd.service"
+    install -Dm644 "systemd/owlryd.socket" "$pkgdir/usr/lib/systemd/user/owlryd.socket"
    install -dm755 "$pkgdir/usr/lib/owlry/plugins"
    install -dm755 "$pkgdir/usr/lib/owlry/runtimes"
 }
--- a/aur/owlry-meta-essentials/.SRCINFO
+++ b/aur/owlry-meta-essentials/.SRCINFO
@@ -1,19 +0,0 @@
-pkgbase = owlry-meta-essentials
-	pkgdesc = Essential plugin bundle for Owlry (calculator, converter, system, ssh, scripts, bookmarks)
-	pkgver = 1.0.0
-	pkgrel = 2
-	url = https://somegit.dev/Owlibou/owlry
-	arch = any
-	license = GPL-3.0-or-later
-	depends = owlry
-	depends = owlry-core
-	depends = owlry-plugin-bookmarks
-	depends = owlry-plugin-calculator
-	depends = owlry-plugin-converter
-	depends = owlry-plugin-scripts
-	depends = owlry-plugin-ssh
-	depends = owlry-plugin-system
-	conflicts = owlry-essentials
-	replaces = owlry-essentials
-
-pkgname = owlry-meta-essentials
--- a/aur/owlry-meta-essentials/PKGBUILD
+++ b/aur/owlry-meta-essentials/PKGBUILD
@@ -1,20 +0,0 @@
-# Maintainer: vikingowl <christian@nachtigall.dev>
-pkgname=owlry-meta-essentials
-pkgver=1.0.0
-pkgrel=2
-pkgdesc="Essential plugin bundle for Owlry (calculator, converter, system, ssh, scripts, bookmarks)"
-arch=('any')
-url="https://somegit.dev/Owlibou/owlry"
-license=('GPL-3.0-or-later')
-depends=(
-    'owlry'
-    'owlry-core'
-    'owlry-plugin-bookmarks'
-    'owlry-plugin-calculator'
-    'owlry-plugin-converter'
-    'owlry-plugin-scripts'
-    'owlry-plugin-ssh'
-    'owlry-plugin-system'
-)
-replaces=('owlry-essentials')
-conflicts=('owlry-essentials')
--- a/aur/owlry-meta-full/.SRCINFO
+++ b/aur/owlry-meta-full/.SRCINFO
@@ -1,29 +0,0 @@
-pkgbase = owlry-meta-full
-	pkgdesc = Complete Owlry installation with all official plugins and runtimes
-	pkgver = 1.0.0
-	pkgrel = 2
-	url = https://somegit.dev/Owlibou/owlry
-	arch = any
-	license = GPL-3.0-or-later
-	depends = owlry
-	depends = owlry-core
-	depends = owlry-plugin-bookmarks
-	depends = owlry-plugin-calculator
-	depends = owlry-plugin-converter
-	depends = owlry-plugin-scripts
-	depends = owlry-plugin-ssh
-	depends = owlry-plugin-system
-	depends = owlry-plugin-clipboard
-	depends = owlry-plugin-emoji
-	depends = owlry-plugin-filesearch
-	depends = owlry-plugin-systemd
-	depends = owlry-plugin-websearch
-	depends = owlry-plugin-media
-	depends = owlry-plugin-pomodoro
-	depends = owlry-plugin-weather
-	optdepends = owlry-lua: Lua runtime for custom user plugins
-	optdepends = owlry-rune: Rune runtime for custom user plugins
-	conflicts = owlry-full
-	replaces = owlry-full
-
-pkgname = owlry-meta-full
--- a/aur/owlry-meta-full/PKGBUILD
+++ b/aur/owlry-meta-full/PKGBUILD
@@ -1,35 +0,0 @@
-# Maintainer: vikingowl <christian@nachtigall.dev>
-pkgname=owlry-meta-full
-pkgver=1.0.0
-pkgrel=2
-pkgdesc="Complete Owlry installation with all official plugins and runtimes"
-arch=('any')
-url="https://somegit.dev/Owlibou/owlry"
-license=('GPL-3.0-or-later')
-depends=(
-    'owlry'
-    'owlry-core'
-    # Essential plugins
-    'owlry-plugin-bookmarks'
-    'owlry-plugin-calculator'
-    'owlry-plugin-converter'
-    'owlry-plugin-scripts'
-    'owlry-plugin-ssh'
-    'owlry-plugin-system'
-    # Tool plugins
-    'owlry-plugin-clipboard'
-    'owlry-plugin-emoji'
-    'owlry-plugin-filesearch'
-    'owlry-plugin-systemd'
-    'owlry-plugin-websearch'
-    # Widget plugins
-    'owlry-plugin-media'
-    'owlry-plugin-pomodoro'
-    'owlry-plugin-weather'
-)
-optdepends=(
-    'owlry-lua: Lua runtime for custom user plugins'
-    'owlry-rune: Rune runtime for custom user plugins'
-)
-replaces=('owlry-full')
-conflicts=('owlry-full')
--- a/aur/owlry-meta-tools/.SRCINFO
+++ b/aur/owlry-meta-tools/.SRCINFO
@@ -1,18 +0,0 @@
-pkgbase = owlry-meta-tools
-	pkgdesc = Tool plugin bundle for Owlry (clipboard, emoji, web search, file search, systemd)
-	pkgver = 1.0.0
-	pkgrel = 1
-	url = https://somegit.dev/Owlibou/owlry
-	arch = any
-	license = GPL-3.0-or-later
-	depends = owlry
-	depends = owlry-core
-	depends = owlry-plugin-clipboard
-	depends = owlry-plugin-emoji
-	depends = owlry-plugin-filesearch
-	depends = owlry-plugin-systemd
-	depends = owlry-plugin-websearch
-	conflicts = owlry-tools
-	replaces = owlry-tools
-
-pkgname = owlry-meta-tools
--- a/aur/owlry-meta-tools/PKGBUILD
+++ b/aur/owlry-meta-tools/PKGBUILD
@@ -1,19 +0,0 @@
-# Maintainer: vikingowl <christian@nachtigall.dev>
-pkgname=owlry-meta-tools
-pkgver=1.0.0
-pkgrel=1
-pkgdesc="Tool plugin bundle for Owlry (clipboard, emoji, web search, file search, systemd)"
-arch=('any')
-url="https://somegit.dev/Owlibou/owlry"
-license=('GPL-3.0-or-later')
-depends=(
-    'owlry'
-    'owlry-core'
-    'owlry-plugin-clipboard'
-    'owlry-plugin-emoji'
-    'owlry-plugin-filesearch'
-    'owlry-plugin-systemd'
-    'owlry-plugin-websearch'
-)
-replaces=('owlry-tools')
-conflicts=('owlry-tools')
--- a/aur/owlry-meta-widgets/.SRCINFO
+++ b/aur/owlry-meta-widgets/.SRCINFO
@@ -1,16 +0,0 @@
-pkgbase = owlry-meta-widgets
-	pkgdesc = Widget plugin bundle for Owlry (weather, media controls, pomodoro timer)
-	pkgver = 1.0.0
-	pkgrel = 1
-	url = https://somegit.dev/Owlibou/owlry
-	arch = any
-	license = GPL-3.0-or-later
-	depends = owlry
-	depends = owlry-core
-	depends = owlry-plugin-media
-	depends = owlry-plugin-pomodoro
-	depends = owlry-plugin-weather
-	conflicts = owlry-widgets
-	replaces = owlry-widgets
-
-pkgname = owlry-meta-widgets
--- a/aur/owlry-meta-widgets/PKGBUILD
+++ b/aur/owlry-meta-widgets/PKGBUILD
@@ -1,17 +0,0 @@
-# Maintainer: vikingowl <christian@nachtigall.dev>
-pkgname=owlry-meta-widgets
-pkgver=1.0.0
-pkgrel=1
-pkgdesc="Widget plugin bundle for Owlry (weather, media controls, pomodoro timer)"
-arch=('any')
-url="https://somegit.dev/Owlibou/owlry"
-license=('GPL-3.0-or-later')
-depends=(
-    'owlry'
-    'owlry-core'
-    'owlry-plugin-media'
-    'owlry-plugin-pomodoro'
-    'owlry-plugin-weather'
-)
-replaces=('owlry-widgets')
-conflicts=('owlry-widgets')
--- a/aur/owlry/.SRCINFO
+++ b/aur/owlry/.SRCINFO
@@ -1,6 +1,6 @@
 pkgbase = owlry
 	pkgdesc = Lightweight Wayland application launcher with plugin support
-	pkgver = 1.0.4
+	pkgver = 1.0.5
 	pkgrel = 1
 	url = https://somegit.dev/Owlibou/owlry
 	arch = x86_64
@@ -28,7 +28,7 @@ pkgbase = owlry
 	optdepends = owlry-plugin-pomodoro: pomodoro timer widget
 	optdepends = owlry-lua: Lua runtime for user plugins
 	optdepends = owlry-rune: Rune runtime for user plugins
-	source = owlry-1.0.4.tar.gz::https://somegit.dev/Owlibou/owlry/archive/owlry-v1.0.4.tar.gz
-	b2sums = 2445d097fd6472fd2b6db063ed3f68dc4c5707dfb3fab23b3b9b6b5231732a4df9502112337a513ec7c34a2e613ea895af3bddd54dcfd58b104c0265c1c78034
+	source = owlry-1.0.5.tar.gz::https://somegit.dev/Owlibou/owlry/archive/owlry-v1.0.5.tar.gz
+	b2sums = 3f7b9cde30a06d96f8c1fda1be72514ac5b0e835402c1a287bfd2d8ea92284874b5fcccfcd08d249eb7f28a3b5be6a3b77c495e610fe9742a6c7b3d5084c9894

 pkgname = owlry
--- a/aur/owlry/PKGBUILD
+++ b/aur/owlry/PKGBUILD
@@ -1,6 +1,6 @@
 # Maintainer: vikingowl <christian@nachtigall.dev>
 pkgname=owlry
-pkgver=1.0.4
+pkgver=1.0.5
 pkgrel=1
 pkgdesc="Lightweight Wayland application launcher with plugin support"
 arch=('x86_64')
@@ -29,7 +29,7 @@ optdepends=(
    'owlry-rune: Rune runtime for user plugins'
 )
 source=("$pkgname-$pkgver.tar.gz::https://somegit.dev/Owlibou/owlry/archive/owlry-v$pkgver.tar.gz")
-b2sums=('2445d097fd6472fd2b6db063ed3f68dc4c5707dfb3fab23b3b9b6b5231732a4df9502112337a513ec7c34a2e613ea895af3bddd54dcfd58b104c0265c1c78034')
+b2sums=('3f7b9cde30a06d96f8c1fda1be72514ac5b0e835402c1a287bfd2d8ea92284874b5fcccfcd08d249eb7f28a3b5be6a3b77c495e610fe9742a6c7b3d5084c9894')

 prepare() {
    cd "owlry"
--- a/crates/owlry-core/Cargo.toml
+++ b/crates/owlry-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "owlry-core"
-version = "1.1.3"
+version = "1.2.1"
 edition.workspace = true
 rust-version.workspace = true
 license.workspace = true
@@ -12,7 +12,7 @@ name = "owlry_core"
 path = "src/lib.rs"

 [[bin]]
-name = "owlry-core"
+name = "owlryd"
 path = "src/main.rs"

 [dependencies]
@@ -48,15 +48,17 @@ log = "0.4"
 env_logger = "0.11"
 notify-rust = "4"

+# Built-in providers
+meval = "0.2"
+reqwest = { version = "0.13", default-features = false, features = ["rustls", "json", "blocking"] }
+
 # Optional: embedded Lua runtime
 mlua = { version = "0.11", features = ["lua54", "vendored", "send", "serialize"], optional = true }
-meval = { version = "0.2", optional = true }
-reqwest = { version = "0.13", default-features = false, features = ["rustls", "json", "blocking"], optional = true }

 [dev-dependencies]
 tempfile = "3"

 [features]
 default = []
-lua = ["dep:mlua", "dep:meval", "dep:reqwest"]
+lua = ["dep:mlua"]
 dev-logging = []
--- a/crates/owlry-core/src/config/mod.rs
+++ b/crates/owlry-core/src/config/mod.rs
@@ -162,6 +162,9 @@ pub struct ProvidersConfig {
    /// Enable calculator provider (= expression or calc expression)
    #[serde(default = "default_true")]
    pub calculator: bool,
+    /// Enable converter provider (> expression or auto-detect)
+    #[serde(default = "default_true")]
+    pub converter: bool,
    /// Enable frecency-based result ranking
    #[serde(default = "default_true")]
    pub frecency: bool,
@@ -239,6 +242,7 @@ impl Default for ProvidersConfig {
            commands: true,
            uuctl: true,
            calculator: true,
+            converter: true,
            frecency: true,
            frecency_weight: 0.3,
            websearch: true,
--- a/crates/owlry-core/src/main.rs
+++ b/crates/owlry-core/src/main.rs
@@ -7,7 +7,7 @@ fn main() {
    env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("warn")).init();

    let sock = paths::socket_path();
-    info!("Starting owlry-core daemon...");
+    info!("Starting owlryd daemon...");

    // Ensure the socket parent directory exists
    if let Err(e) = paths::ensure_parent_dir(&sock) {
@@ -18,7 +18,7 @@ fn main() {
    let server = match Server::bind(&sock) {
        Ok(s) => s,
        Err(e) => {
-            eprintln!("Failed to start owlry-core: {e}");
+            eprintln!("Failed to start owlryd: {e}");
            std::process::exit(1);
        }
    };
--- a/crates/owlry-core/src/providers/calculator.rs
+++ b/crates/owlry-core/src/providers/calculator.rs
@@ -0,0 +1,237 @@
+use super::{DynamicProvider, LaunchItem, ProviderType};
+
+/// Built-in calculator provider. Evaluates mathematical expressions via `meval`.
+///
+/// Triggered by:
+/// - `= expr` / `=expr` / `calc expr` (explicit prefix)
+/// - Raw math expressions containing operators or known functions (auto-detect)
+pub(crate) struct CalculatorProvider;
+
+impl DynamicProvider for CalculatorProvider {
+    fn name(&self) -> &str {
+        "Calculator"
+    }
+
+    fn provider_type(&self) -> ProviderType {
+        ProviderType::Plugin("calc".into())
+    }
+
+    fn priority(&self) -> u32 {
+        10_000
+    }
+
+    fn query(&self, query: &str) -> Vec<LaunchItem> {
+        let expr = match extract_expression(query) {
+            Some(e) if !e.is_empty() => e,
+            _ => return Vec::new(),
+        };
+
+        match meval::eval_str(expr) {
+            Ok(result) => {
+                let display = format_result(result);
+                let copy_cmd = format!(
+                    "printf '%s' '{}' | wl-copy",
+                    display.replace('\'', "'\\''")
+                );
+                vec![LaunchItem {
+                    id: format!("calc:{}", expr),
+                    name: display.clone(),
+                    description: Some(format!("= {}", expr)),
+                    icon: Some("accessories-calculator".into()),
+                    provider: ProviderType::Plugin("calc".into()),
+                    command: copy_cmd,
+                    terminal: false,
+                    tags: vec!["math".into(), "calculator".into()],
+                }]
+            }
+            Err(_) => Vec::new(),
+        }
+    }
+}
+
+/// Extract the math expression from a query string.
+///
+/// Handles:
+/// - `= expr` and `=expr` (explicit calculator prefix)
+/// - `calc expr` (word prefix)
+/// - Raw expressions if they look like math (auto-detect)
+///
+/// Returns `None` only when input is empty after trimming.
+fn extract_expression(query: &str) -> Option<&str> {
+    let trimmed = query.trim();
+    if trimmed.is_empty() {
+        return None;
+    }
+
+    // Explicit prefixes
+    if let Some(rest) = trimmed.strip_prefix("= ") {
+        return Some(rest.trim());
+    }
+    if let Some(rest) = trimmed.strip_prefix('=') {
+        return Some(rest.trim());
+    }
+    if let Some(rest) = trimmed.strip_prefix("calc ") {
+        return Some(rest.trim());
+    }
+
+    // Auto-detect: only forward if the expression looks like math.
+    // Plain words like "firefox" should not reach meval.
+    if looks_like_math(trimmed) {
+        Some(trimmed)
+    } else {
+        None
+    }
+}
+
+/// Heuristic: does this string look like a math expression?
+///
+/// Returns true when the string contains binary operators, digits mixed with
+/// operators, or known function names. Plain alphabetic words return false.
+fn looks_like_math(s: &str) -> bool {
+    // Must contain at least one digit or a known constant/function name
+    let has_digit = s.chars().any(|c| c.is_ascii_digit());
+    let has_operator = s.contains('+')
+        || s.contains('*')
+        || s.contains('/')
+        || s.contains('^')
+        || s.contains('%');
+    // Subtraction/negation is ambiguous; only count it as an operator when
+    // there are already digits present to avoid matching bare words with hyphens.
+    let has_minus_operator = has_digit && s.contains('-');
+
+    // Known math functions that are safe to auto-evaluate
+    const MATH_FUNCTIONS: &[&str] = &[
+        "sqrt", "sin", "cos", "tan", "log", "ln", "abs", "floor", "ceil", "round",
+    ];
+    let has_function = MATH_FUNCTIONS.iter().any(|f| s.contains(f));
+
+    has_digit && (has_operator || has_minus_operator) || has_function
+}
+
+/// Format a floating-point result for display.
+///
+/// Integer-valued results are shown as integers with thousands separators.
+/// Non-integer results are shown with up to 10 decimal places, trailing zeros trimmed.
+fn format_result(result: f64) -> String {
+    if result.fract() == 0.0 && result.abs() < 1e15 {
+        format_integer_with_separators(result as i64)
+    } else {
+        let formatted = format!("{:.10}", result);
+        formatted
+            .trim_end_matches('0')
+            .trim_end_matches('.')
+            .to_string()
+    }
+}
+
+fn format_integer_with_separators(n: i64) -> String {
+    let s = n.unsigned_abs().to_string();
+    let with_commas = s
+        .as_bytes()
+        .rchunks(3)
+        .rev()
+        .map(|chunk| std::str::from_utf8(chunk).unwrap())
+        .collect::<Vec<_>>()
+        .join(",");
+
+    if n < 0 {
+        format!("-{}", with_commas)
+    } else {
+        with_commas
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    fn query(q: &str) -> Vec<LaunchItem> {
+        CalculatorProvider.query(q)
+    }
+
+    // --- Trigger prefix tests ---
+
+    #[test]
+    fn equals_prefix_addition() {
+        let results = query("= 5+3");
+        assert_eq!(results.len(), 1);
+        assert_eq!(results[0].name, "8");
+    }
+
+    #[test]
+    fn calc_prefix_multiplication() {
+        let results = query("calc 10*2");
+        assert_eq!(results.len(), 1);
+        assert_eq!(results[0].name, "20");
+    }
+
+    // --- Auto-detect tests ---
+
+    #[test]
+    fn auto_detect_addition() {
+        let results = query("5+3");
+        assert_eq!(results.len(), 1);
+        assert_eq!(results[0].name, "8");
+    }
+
+    #[test]
+    fn equals_prefix_complex_expression() {
+        let results = query("= sqrt(16) + 2^3");
+        assert_eq!(results.len(), 1);
+        assert_eq!(results[0].name, "12");
+    }
+
+    #[test]
+    fn decimal_result() {
+        let results = query("= 10/3");
+        assert_eq!(results.len(), 1);
+        assert!(
+            results[0].name.starts_with("3.333"),
+            "expected result starting with 3.333, got: {}",
+            results[0].name
+        );
+    }
+
+    #[test]
+    fn large_integer_thousands_separators() {
+        let results = query("= 1000000");
+        assert_eq!(results.len(), 1);
+        assert_eq!(results[0].name, "1,000,000");
+    }
+
+    // --- Invalid / non-math input ---
+
+    #[test]
+    fn invalid_expression_returns_empty() {
+        let results = query("= 5 +");
+        assert!(results.is_empty());
+    }
+
+    #[test]
+    fn plain_text_returns_empty() {
+        let results = query("firefox");
+        assert!(results.is_empty());
+    }
+
+    // --- Metadata tests ---
+
+    #[test]
+    fn provider_type_is_calc_plugin() {
+        assert_eq!(
+            CalculatorProvider.provider_type(),
+            ProviderType::Plugin("calc".into())
+        );
+    }
+
+    #[test]
+    fn description_shows_expression() {
+        let results = query("= 5+3");
+        assert_eq!(results[0].description.as_deref(), Some("= 5+3"));
+    }
+
+    #[test]
+    fn copy_command_contains_wl_copy() {
+        let results = query("= 5+3");
+        assert!(results[0].command.contains("wl-copy"));
+    }
+}
--- a/crates/owlry-core/src/providers/converter/currency.rs
+++ b/crates/owlry-core/src/providers/converter/currency.rs
@@ -0,0 +1,313 @@
+use std::collections::HashMap;
+use std::fs;
+use std::path::PathBuf;
+use std::sync::Mutex;
+use std::time::SystemTime;
+
+use serde::{Deserialize, Serialize};
+
+const ECB_URL: &str = "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml";
+const CACHE_MAX_AGE_SECS: u64 = 86400; // 24 hours
+
+static CACHED_RATES: Mutex<Option<CurrencyRates>> = Mutex::new(None);
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct CurrencyRates {
+    pub date: String,
+    pub rates: HashMap<String, f64>,
+}
+
+struct CurrencyAlias {
+    code: &'static str,
+    aliases: &'static [&'static str],
+}
+
+static CURRENCY_ALIASES: &[CurrencyAlias] = &[
+    CurrencyAlias {
+        code: "EUR",
+        aliases: &["eur", "euro", "euros", "€"],
+    },
+    CurrencyAlias {
+        code: "USD",
+        aliases: &["usd", "dollar", "dollars", "$", "us_dollar"],
+    },
+    CurrencyAlias {
+        code: "GBP",
+        aliases: &["gbp", "pound_sterling", "£", "british_pound", "pounds"],
+    },
+    CurrencyAlias {
+        code: "JPY",
+        aliases: &["jpy", "yen", "¥", "japanese_yen"],
+    },
+    CurrencyAlias {
+        code: "CHF",
+        aliases: &["chf", "swiss_franc", "francs"],
+    },
+    CurrencyAlias {
+        code: "CAD",
+        aliases: &["cad", "canadian_dollar", "c$"],
+    },
+    CurrencyAlias {
+        code: "AUD",
+        aliases: &["aud", "australian_dollar", "a$"],
+    },
+    CurrencyAlias {
+        code: "CNY",
+        aliases: &["cny", "yuan", "renminbi", "rmb"],
+    },
+    CurrencyAlias {
+        code: "SEK",
+        aliases: &["sek", "swedish_krona", "kronor"],
+    },
+    CurrencyAlias {
+        code: "NOK",
+        aliases: &["nok", "norwegian_krone"],
+    },
+    CurrencyAlias {
+        code: "DKK",
+        aliases: &["dkk", "danish_krone"],
+    },
+    CurrencyAlias {
+        code: "PLN",
+        aliases: &["pln", "zloty", "złoty"],
+    },
+    CurrencyAlias {
+        code: "CZK",
+        aliases: &["czk", "czech_koruna"],
+    },
+    CurrencyAlias {
+        code: "HUF",
+        aliases: &["huf", "forint"],
+    },
+    CurrencyAlias {
+        code: "TRY",
+        aliases: &["try", "turkish_lira", "lira"],
+    },
+];
+
+pub fn resolve_currency_code(alias: &str) -> Option<&'static str> {
+    let lower = alias.to_lowercase();
+
+    // Check aliases
+    for ca in CURRENCY_ALIASES {
+        if ca.aliases.contains(&lower.as_str()) {
+            return Some(ca.code); // ca.code is already &'static str
+        }
+    }
+
+    // Check if it's a raw 3-letter ISO code we know about
+    let upper = alias.to_uppercase();
+    if upper.len() == 3 {
+        if upper == "EUR" {
+            return Some("EUR");
+        }
+        if let Some(rates) = get_rates()
+            && rates.rates.contains_key(&upper)
+        {
+            for ca in CURRENCY_ALIASES {
+                if ca.code == upper {
+                    return Some(ca.code);
+                }
+            }
+        }
+    }
+
+    None
+}
+
+#[allow(dead_code)]
+pub fn is_currency_alias(alias: &str) -> bool {
+    resolve_currency_code(alias).is_some()
+}
+
+pub fn get_rates() -> Option<CurrencyRates> {
+    // Check memory cache first
+    {
+        let cache = CACHED_RATES.lock().ok()?;
+        if let Some(ref rates) = *cache {
+            return Some(rates.clone());
+        }
+    }
+
+    // Try disk cache
+    if let Some(rates) = load_cache()
+        && !is_stale(&rates)
+    {
+        let mut cache = CACHED_RATES.lock().ok()?;
+        *cache = Some(rates.clone());
+        return Some(rates);
+    }
+
+    // Fetch fresh rates
+    if let Some(rates) = fetch_rates() {
+        save_cache(&rates);
+        let mut cache = CACHED_RATES.lock().ok()?;
+        *cache = Some(rates.clone());
+        return Some(rates);
+    }
+
+    // Fall back to stale cache
+    load_cache()
+}
+
+fn cache_path() -> Option<PathBuf> {
+    let cache_dir = dirs::cache_dir()?.join("owlry");
+    Some(cache_dir.join("ecb_rates.json"))
+}
+
+fn load_cache() -> Option<CurrencyRates> {
+    let path = cache_path()?;
+    let content = fs::read_to_string(path).ok()?;
+    serde_json::from_str(&content).ok()
+}
+
+fn save_cache(rates: &CurrencyRates) {
+    if let Some(path) = cache_path() {
+        if let Some(parent) = path.parent() {
+            fs::create_dir_all(parent).ok();
+        }
+        if let Ok(json) = serde_json::to_string_pretty(rates) {
+            fs::write(path, json).ok();
+        }
+    }
+}
+
+fn is_stale(_rates: &CurrencyRates) -> bool {
+    let path = match cache_path() {
+        Some(p) => p,
+        None => return true,
+    };
+    let metadata = match fs::metadata(path) {
+        Ok(m) => m,
+        Err(_) => return true,
+    };
+    let modified = match metadata.modified() {
+        Ok(t) => t,
+        Err(_) => return true,
+    };
+    match SystemTime::now().duration_since(modified) {
+        Ok(age) => age.as_secs() > CACHE_MAX_AGE_SECS,
+        Err(_) => true,
+    }
+}
+
+fn fetch_rates() -> Option<CurrencyRates> {
+    let response = reqwest::blocking::get(ECB_URL).ok()?;
+    let body = response.text().ok()?;
+    parse_ecb_xml(&body)
+}
+
+fn parse_ecb_xml(xml: &str) -> Option<CurrencyRates> {
+    let mut rates = HashMap::new();
+    let mut date = String::new();
+
+    for line in xml.lines() {
+        let trimmed = line.trim();
+
+        // Extract date: <Cube time='2026-03-26'>
+        if trimmed.contains("time=")
+            && let Some(start) = trimmed.find("time='")
+        {
+            let rest = &trimmed[start + 6..];
+            if let Some(end) = rest.find('\'') {
+                date = rest[..end].to_string();
+            }
+        }
+
+        // Extract rate: <Cube currency='USD' rate='1.0832'/>
+        if trimmed.contains("currency=") && trimmed.contains("rate=") {
+            let currency = extract_attr(trimmed, "currency")?;
+            let rate_str = extract_attr(trimmed, "rate")?;
+            let rate: f64 = rate_str.parse().ok()?;
+            rates.insert(currency, rate);
+        }
+    }
+
+    if rates.is_empty() {
+        return None;
+    }
+
+    Some(CurrencyRates { date, rates })
+}
+
+fn extract_attr(line: &str, attr: &str) -> Option<String> {
+    let needle = format!("{}='", attr);
+    let start = line.find(&needle)? + needle.len();
+    let rest = &line[start..];
+    let end = rest.find('\'')?;
+    Some(rest[..end].to_string())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_resolve_currency_code_iso() {
+        assert_eq!(resolve_currency_code("usd"), Some("USD"));
+        assert_eq!(resolve_currency_code("EUR"), Some("EUR"));
+    }
+
+    #[test]
+    fn test_resolve_currency_code_name() {
+        assert_eq!(resolve_currency_code("dollar"), Some("USD"));
+        assert_eq!(resolve_currency_code("euro"), Some("EUR"));
+        assert_eq!(resolve_currency_code("pounds"), Some("GBP"));
+    }
+
+    #[test]
+    fn test_resolve_currency_code_symbol() {
+        assert_eq!(resolve_currency_code("$"), Some("USD"));
+        assert_eq!(resolve_currency_code("€"), Some("EUR"));
+        assert_eq!(resolve_currency_code("£"), Some("GBP"));
+    }
+
+    #[test]
+    fn test_resolve_currency_unknown() {
+        assert_eq!(resolve_currency_code("xyz"), None);
+    }
+
+    #[test]
+    fn test_is_currency_alias() {
+        assert!(is_currency_alias("usd"));
+        assert!(is_currency_alias("euro"));
+        assert!(is_currency_alias("$"));
+        assert!(!is_currency_alias("km"));
+    }
+
+    #[test]
+    fn test_parse_ecb_xml() {
+        let xml = r#"<?xml version="1.0" encoding="UTF-8"?>
+<gesmes:Envelope xmlns:gesmes="http://www.gesmes.org/xml/2002-08-01" xmlns="http://www.ecb.int/vocabulary/2002-08-01/eurofxref">
+    <gesmes:subject>Reference rates</gesmes:subject>
+    <Cube>
+        <Cube time='2026-03-26'>
+            <Cube currency='USD' rate='1.0832'/>
+            <Cube currency='JPY' rate='161.94'/>
+            <Cube currency='GBP' rate='0.83450'/>
+        </Cube>
+    </Cube>
+</gesmes:Envelope>"#;
+
+        let rates = parse_ecb_xml(xml).unwrap();
+        assert!((rates.rates["USD"] - 1.0832).abs() < 0.001);
+        assert!((rates.rates["GBP"] - 0.8345).abs() < 0.001);
+        assert!((rates.rates["JPY"] - 161.94).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_cache_roundtrip() {
+        let rates = CurrencyRates {
+            date: "2026-03-26".to_string(),
+            rates: {
+                let mut m = HashMap::new();
+                m.insert("USD".to_string(), 1.0832);
+                m.insert("GBP".to_string(), 0.8345);
+                m
+            },
+        };
+        let json = serde_json::to_string(&rates).unwrap();
+        let parsed: CurrencyRates = serde_json::from_str(&json).unwrap();
+        assert_eq!(parsed.rates["USD"], 1.0832);
+    }
+}
--- a/crates/owlry-core/src/providers/converter/mod.rs
+++ b/crates/owlry-core/src/providers/converter/mod.rs
@@ -0,0 +1,183 @@
+mod currency;
+mod parser;
+mod units;
+
+use super::{DynamicProvider, LaunchItem, ProviderType};
+
+const PROVIDER_TYPE_ID: &str = "conv";
+const PROVIDER_ICON: &str = "edit-find-replace-symbolic";
+
+pub struct ConverterProvider;
+
+impl ConverterProvider {
+    pub fn new() -> Self {
+        Self
+    }
+}
+
+impl DynamicProvider for ConverterProvider {
+    fn name(&self) -> &str {
+        "Converter"
+    }
+
+    fn provider_type(&self) -> ProviderType {
+        ProviderType::Plugin(PROVIDER_TYPE_ID.into())
+    }
+
+    fn priority(&self) -> u32 {
+        9_000
+    }
+
+    fn query(&self, query: &str) -> Vec<LaunchItem> {
+        let query_str = query.trim();
+        // Strip prefix
+        let input = if let Some(rest) = query_str.strip_prefix('>') {
+            rest.trim()
+        } else {
+            query_str
+        };
+
+        let parsed = match parser::parse_conversion(input) {
+            Some(p) => p,
+            None => return Vec::new(),
+        };
+
+        let results = if let Some(ref target) = parsed.target_unit {
+            units::convert_to(&parsed.value, &parsed.from_unit, target)
+                .into_iter()
+                .collect()
+        } else {
+            units::convert_common(&parsed.value, &parsed.from_unit)
+        };
+
+        results
+            .into_iter()
+            .map(|r| LaunchItem {
+                id: format!("conv:{}:{}:{}", parsed.from_unit, r.target_symbol, r.value),
+                name: r.display_value.clone(),
+                description: Some(format!(
+                    "{} {} = {}",
+                    format_number(parsed.value),
+                    parsed.from_symbol,
+                    r.display_value,
+                )),
+                icon: Some(PROVIDER_ICON.into()),
+                provider: ProviderType::Plugin(PROVIDER_TYPE_ID.into()),
+                command: format!(
+                    "printf '%s' '{}' | wl-copy",
+                    r.raw_value.replace('\'', "'\\''")
+                ),
+                terminal: false,
+                tags: vec!["converter".into(), "units".into()],
+            })
+            .collect()
+    }
+}
+
+fn format_number(n: f64) -> String {
+    if n.fract() == 0.0 && n.abs() < 1e15 {
+        let i = n as i64;
+        if i.abs() >= 1000 {
+            format_with_separators(i)
+        } else {
+            format!("{}", i)
+        }
+    } else {
+        format!("{:.4}", n)
+            .trim_end_matches('0')
+            .trim_end_matches('.')
+            .to_string()
+    }
+}
+
+pub(crate) fn format_with_separators(n: i64) -> String {
+    let s = n.abs().to_string();
+    let mut result = String::new();
+    for (i, c) in s.chars().rev().enumerate() {
+        if i > 0 && i % 3 == 0 {
+            result.push(',');
+        }
+        result.push(c);
+    }
+    if n < 0 {
+        result.push('-');
+    }
+    result.chars().rev().collect()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    fn query(input: &str) -> Vec<LaunchItem> {
+        ConverterProvider::new().query(input)
+    }
+
+    #[test]
+    fn test_prefix_trigger() {
+        let r = query("> 100 km to mi");
+        assert!(!r.is_empty());
+    }
+
+    #[test]
+    fn test_auto_detect() {
+        let r = query("100 km to mi");
+        assert!(!r.is_empty());
+    }
+
+    #[test]
+    fn test_common_conversions() {
+        let r = query("> 100 km");
+        assert!(r.len() > 1);
+    }
+
+    #[test]
+    fn test_temperature() {
+        let r = query("102F to C");
+        assert!(!r.is_empty());
+    }
+
+    #[test]
+    fn test_nonsense_returns_empty() {
+        assert!(query("hello world").is_empty());
+    }
+
+    #[test]
+    fn test_provider_type() {
+        assert_eq!(
+            ConverterProvider::new().provider_type(),
+            ProviderType::Plugin("conv".into())
+        );
+    }
+
+    #[test]
+    fn test_no_double_unit() {
+        let r = query("100 km to mi");
+        if let Some(item) = r.first() {
+            let desc = item.description.as_deref().unwrap();
+            assert!(!desc.ends_with(" mi mi"), "double unit in: {}", desc);
+        }
+    }
+
+    #[test]
+    fn test_format_number_integer() {
+        assert_eq!(format_number(42.0), "42");
+    }
+
+    #[test]
+    fn test_format_number_large_integer() {
+        assert_eq!(format_number(1000000.0), "1,000,000");
+    }
+
+    #[test]
+    fn test_format_number_decimal() {
+        assert_eq!(format_number(3.14), "3.14");
+    }
+
+    #[test]
+    fn test_format_with_separators() {
+        assert_eq!(format_with_separators(1234567), "1,234,567");
+        assert_eq!(format_with_separators(999), "999");
+        assert_eq!(format_with_separators(-1234), "-1,234");
+    }
+}
--- a/crates/owlry-core/src/providers/converter/parser.rs
+++ b/crates/owlry-core/src/providers/converter/parser.rs
@@ -0,0 +1,235 @@
+use super::units;
+
+pub struct ParsedQuery {
+    pub value: f64,
+    pub from_unit: String,
+    pub from_symbol: String,
+    pub target_unit: Option<String>,
+}
+
+pub fn parse_conversion(input: &str) -> Option<ParsedQuery> {
+    let input = input.trim();
+    if input.is_empty() {
+        return None;
+    }
+
+    // Extract leading number
+    let (value, rest) = extract_number(input)?;
+    let rest = rest.trim();
+
+    if rest.is_empty() {
+        return None;
+    }
+
+    // Split on " to " or " in " (case-insensitive)
+    let (from_str, target_str) = split_on_connector(rest);
+
+    // Resolve from unit
+    let from_lower = from_str.trim().to_lowercase();
+    let from_symbol = units::find_unit(&from_lower)?;
+
+    let from_symbol_str = from_symbol.to_string();
+
+    // Resolve target unit if present
+    let target_unit = target_str.and_then(|t| {
+        let t_lower = t.trim().to_lowercase();
+        if t_lower.is_empty() {
+            None
+        } else {
+            units::find_unit(&t_lower).map(|_| t_lower)
+        }
+    });
+
+    Some(ParsedQuery {
+        value,
+        from_unit: from_lower,
+        from_symbol: from_symbol_str,
+        target_unit,
+    })
+}
+
+fn extract_number(input: &str) -> Option<(f64, &str)> {
+    let bytes = input.as_bytes();
+    let mut i = 0;
+
+    // Optional negative sign
+    if i < bytes.len() && bytes[i] == b'-' {
+        i += 1;
+    }
+
+    // Must have at least one digit or start with .
+    if i >= bytes.len() {
+        return None;
+    }
+
+    let start_digits = i;
+
+    // Integer part
+    while i < bytes.len() && bytes[i].is_ascii_digit() {
+        i += 1;
+    }
+
+    // Decimal part
+    if i < bytes.len() && bytes[i] == b'.' {
+        i += 1;
+        while i < bytes.len() && bytes[i].is_ascii_digit() {
+            i += 1;
+        }
+    }
+
+    if i == start_digits && !(i > 0 && bytes[0] == b'-') {
+        // No digits found (and not just a negative sign before a dot)
+        // Handle ".5" case
+        if bytes[start_digits] == b'.' {
+            // already advanced past dot above
+        } else {
+            return None;
+        }
+    }
+
+    if i == 0 || (i == 1 && bytes[0] == b'-') {
+        return None;
+    }
+
+    let num_str = &input[..i];
+    let value: f64 = num_str.parse().ok()?;
+    let rest = &input[i..];
+
+    Some((value, rest))
+}
+
+fn split_on_connector(input: &str) -> (&str, Option<&str>) {
+    let lower = input.to_lowercase();
+
+    // Try " to " first
+    if let Some(pos) = lower.find(" to ") {
+        let from = &input[..pos];
+        let target = &input[pos + 4..];
+        return (from, Some(target));
+    }
+
+    // Try " in "
+    if let Some(pos) = lower.find(" in ") {
+        let from = &input[..pos];
+        let target = &input[pos + 4..];
+        return (from, Some(target));
+    }
+
+    (input, None)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_number_and_unit_with_space() {
+        let p = parse_conversion("100 km").unwrap();
+        assert!((p.value - 100.0).abs() < 0.001);
+        assert_eq!(p.from_unit, "km");
+        assert!(p.target_unit.is_none());
+    }
+
+    #[test]
+    fn test_number_and_unit_no_space() {
+        let p = parse_conversion("100km").unwrap();
+        assert!((p.value - 100.0).abs() < 0.001);
+        assert_eq!(p.from_unit, "km");
+    }
+
+    #[test]
+    fn test_with_target_to() {
+        let p = parse_conversion("100 km to mi").unwrap();
+        assert!((p.value - 100.0).abs() < 0.001);
+        assert_eq!(p.from_unit, "km");
+        assert_eq!(p.target_unit.as_deref(), Some("mi"));
+    }
+
+    #[test]
+    fn test_with_target_in() {
+        let p = parse_conversion("100 km in mi").unwrap();
+        assert_eq!(p.target_unit.as_deref(), Some("mi"));
+    }
+
+    #[test]
+    fn test_temperature_no_space() {
+        let p = parse_conversion("102F to C").unwrap();
+        assert!((p.value - 102.0).abs() < 0.001);
+        assert_eq!(p.from_unit, "f");
+        assert_eq!(p.target_unit.as_deref(), Some("c"));
+    }
+
+    #[test]
+    fn test_temperature_with_space() {
+        let p = parse_conversion("102 F in K").unwrap();
+        assert!((p.value - 102.0).abs() < 0.001);
+        assert_eq!(p.from_unit, "f");
+        assert_eq!(p.target_unit.as_deref(), Some("k"));
+    }
+
+    #[test]
+    fn test_decimal_number() {
+        let p = parse_conversion("3.5 kg to lb").unwrap();
+        assert!((p.value - 3.5).abs() < 0.001);
+    }
+
+    #[test]
+    fn test_decimal_starting_with_dot() {
+        let p = parse_conversion(".5 kg").unwrap();
+        assert!((p.value - 0.5).abs() < 0.001);
+    }
+
+    #[test]
+    fn test_full_unit_names() {
+        let p = parse_conversion("100 kilometers to miles").unwrap();
+        assert_eq!(p.from_unit, "kilometers");
+        assert_eq!(p.target_unit.as_deref(), Some("miles"));
+    }
+
+    #[test]
+    fn test_case_insensitive() {
+        let p = parse_conversion("100 KM TO MI").unwrap();
+        assert_eq!(p.from_unit, "km");
+        assert_eq!(p.target_unit.as_deref(), Some("mi"));
+    }
+
+    #[test]
+    fn test_currency() {
+        let p = parse_conversion("100 eur to usd").unwrap();
+        assert_eq!(p.from_unit, "eur");
+        assert_eq!(p.target_unit.as_deref(), Some("usd"));
+    }
+
+    #[test]
+    fn test_no_number_returns_none() {
+        assert!(parse_conversion("km to mi").is_none());
+    }
+
+    #[test]
+    fn test_unknown_unit_returns_none() {
+        assert!(parse_conversion("100 xyz to abc").is_none());
+    }
+
+    #[test]
+    fn test_empty_returns_none() {
+        assert!(parse_conversion("").is_none());
+    }
+
+    #[test]
+    fn test_number_only_returns_none() {
+        assert!(parse_conversion("100").is_none());
+    }
+
+    #[test]
+    fn test_compound_unit_alias() {
+        let p = parse_conversion("100 km/h to mph").unwrap();
+        assert_eq!(p.from_unit, "km/h");
+        assert_eq!(p.target_unit.as_deref(), Some("mph"));
+    }
+
+    #[test]
+    fn test_multi_word_unit() {
+        let p = parse_conversion("100 fl_oz to ml").unwrap();
+        assert_eq!(p.from_unit, "fl_oz");
+    }
+}
--- a/crates/owlry-core/src/providers/converter/units.rs
+++ b/crates/owlry-core/src/providers/converter/units.rs
@@ -0,0 +1,944 @@
+use std::collections::HashMap;
+use std::sync::LazyLock;
+
+use super::currency;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum Category {
+    Temperature,
+    Length,
+    Weight,
+    Volume,
+    Speed,
+    Area,
+    Data,
+    Time,
+    Pressure,
+    Energy,
+    Currency,
+}
+
+#[derive(Clone)]
+enum Conversion {
+    Factor(f64),
+    Custom {
+        to_base: fn(f64) -> f64,
+        from_base: fn(f64) -> f64,
+    },
+}
+
+#[derive(Clone)]
+pub(crate) struct UnitDef {
+    _id: &'static str,
+    symbol: &'static str,
+    aliases: &'static [&'static str],
+    category: Category,
+    conversion: Conversion,
+}
+
+impl UnitDef {
+    fn to_base(&self, value: f64) -> f64 {
+        match &self.conversion {
+            Conversion::Factor(f) => value * f,
+            Conversion::Custom { to_base, .. } => to_base(value),
+        }
+    }
+
+    fn convert_from_base(&self, value: f64) -> f64 {
+        match &self.conversion {
+            Conversion::Factor(f) => value / f,
+            Conversion::Custom { from_base, .. } => from_base(value),
+        }
+    }
+}
+
+pub struct ConversionResult {
+    pub value: f64,
+    pub raw_value: String,
+    pub display_value: String,
+    pub target_symbol: String,
+}
+
+static UNITS: LazyLock<Vec<UnitDef>> = LazyLock::new(build_unit_table);
+static ALIAS_MAP: LazyLock<HashMap<String, usize>> = LazyLock::new(|| {
+    let mut map = HashMap::new();
+    for (i, unit) in UNITS.iter().enumerate() {
+        for alias in unit.aliases {
+            map.insert(alias.to_lowercase(), i);
+        }
+    }
+    map
+});
+
+// Common conversions per category (symbols to show when no target specified)
+static COMMON_TARGETS: LazyLock<HashMap<Category, Vec<&'static str>>> = LazyLock::new(|| {
+    let mut m = HashMap::new();
+    m.insert(Category::Temperature, vec!["°C", "°F", "K"]);
+    m.insert(Category::Length, vec!["m", "km", "ft", "mi", "in"]);
+    m.insert(Category::Weight, vec!["kg", "lb", "oz", "g", "st"]);
+    m.insert(Category::Volume, vec!["l", "gal", "ml", "cup", "fl oz"]);
+    m.insert(Category::Speed, vec!["km/h", "mph", "m/s", "kn"]);
+    m.insert(Category::Area, vec!["m²", "ft²", "ac", "ha", "km²"]);
+    m.insert(Category::Data, vec!["MB", "GB", "MiB", "GiB", "TB"]);
+    m.insert(Category::Time, vec!["s", "min", "h", "d", "wk"]);
+    m.insert(Category::Pressure, vec!["bar", "psi", "atm", "hPa", "mmHg"]);
+    m.insert(Category::Energy, vec!["kJ", "kcal", "kWh", "BTU", "Wh"]);
+    m.insert(Category::Currency, vec!["USD", "EUR", "GBP", "JPY", "CNY"]);
+    m
+});
+
+pub fn find_unit(alias: &str) -> Option<&'static str> {
+    let lower = alias.to_lowercase();
+    if let Some(&i) = ALIAS_MAP.get(&lower) {
+        return Some(UNITS[i].symbol);
+    }
+    currency::resolve_currency_code(&lower)
+}
+
+pub fn lookup_unit(alias: &str) -> Option<(usize, &UnitDef)> {
+    let lower = alias.to_lowercase();
+    ALIAS_MAP.get(&lower).map(|&i| (i, &UNITS[i]))
+}
+
+pub fn convert_to(value: &f64, from: &str, to: &str) -> Option<ConversionResult> {
+    // Try currency first — currency aliases (dollar, euro, etc.) aren't in the UNITS table
+    if currency::is_currency_alias(from) || currency::is_currency_alias(to) {
+        return convert_currency(*value, from, to);
+    }
+
+    let (_, from_def) = lookup_unit(from)?;
+    let (_, to_def) = lookup_unit(to)?;
+
+    // Currency via UNITS table (shouldn't reach here, but just in case)
+    if from_def.category == Category::Currency || to_def.category == Category::Currency {
+        return convert_currency(*value, from, to);
+    }
+
+    // Must be same category
+    if from_def.category != to_def.category {
+        return None;
+    }
+
+    let base_value = from_def.to_base(*value);
+    let result = to_def.convert_from_base(base_value);
+
+    Some(format_result(result, to_def.symbol))
+}
+
+pub fn convert_common(value: &f64, from: &str) -> Vec<ConversionResult> {
+    // Try currency first — currency aliases (dollar, euro, etc.) aren't in the UNITS table
+    if currency::is_currency_alias(from) {
+        return convert_currency_common(*value, from);
+    }
+
+    let (_, from_def) = match lookup_unit(from) {
+        Some(u) => u,
+        None => return vec![],
+    };
+
+    let category = from_def.category;
+    let from_symbol = from_def.symbol;
+
+    if category == Category::Currency {
+        return convert_currency_common(*value, from);
+    }
+
+    let targets = match COMMON_TARGETS.get(&category) {
+        Some(t) => t,
+        None => return vec![],
+    };
+
+    let base_value = from_def.to_base(*value);
+
+    targets
+        .iter()
+        .filter(|&&sym| sym != from_symbol)
+        .filter_map(|&sym| {
+            let (_, to_def) = lookup_unit(sym)?;
+            let result = to_def.convert_from_base(base_value);
+            Some(format_result(result, to_def.symbol))
+        })
+        .take(5)
+        .collect()
+}
+
+fn convert_currency(value: f64, from: &str, to: &str) -> Option<ConversionResult> {
+    let rates = currency::get_rates()?;
+    let from_code = currency::resolve_currency_code(from)?;
+    let to_code = currency::resolve_currency_code(to)?;
+
+    let from_rate = if from_code == "EUR" { 1.0 } else { *rates.rates.get(from_code)? };
+    let to_rate = if to_code == "EUR" { 1.0 } else { *rates.rates.get(to_code)? };
+
+    let result = value / from_rate * to_rate;
+    Some(format_currency_result(result, to_code))
+}
+
+fn convert_currency_common(value: f64, from: &str) -> Vec<ConversionResult> {
+    let rates = match currency::get_rates() {
+        Some(r) => r,
+        None => return vec![],
+    };
+    let from_code = match currency::resolve_currency_code(from) {
+        Some(c) => c,
+        None => return vec![],
+    };
+
+    let targets = COMMON_TARGETS.get(&Category::Currency).unwrap();
+    let from_rate = if from_code == "EUR" {
+        1.0
+    } else {
+        match rates.rates.get(from_code) {
+            Some(&r) => r,
+            None => return vec![],
+        }
+    };
+
+    targets
+        .iter()
+        .filter(|&&sym| sym != from_code)
+        .filter_map(|&sym| {
+            let to_rate = if sym == "EUR" { 1.0 } else { *rates.rates.get(sym)? };
+            let result = value / from_rate * to_rate;
+            Some(format_currency_result(result, sym))
+        })
+        .take(5)
+        .collect()
+}
+
+fn format_result(value: f64, symbol: &str) -> ConversionResult {
+    let raw = if value.fract() == 0.0 && value.abs() < 1e15 {
+        format!("{}", value as i64)
+    } else {
+        format!("{:.4}", value)
+            .trim_end_matches('0')
+            .trim_end_matches('.')
+            .to_string()
+    };
+
+    let display = if value.abs() >= 1000.0 && value.fract() == 0.0 && value.abs() < 1e15 {
+        super::format_with_separators(value as i64)
+    } else {
+        raw.clone()
+    };
+
+    ConversionResult {
+        value,
+        raw_value: raw,
+        display_value: format!("{} {}", display, symbol),
+        target_symbol: symbol.to_string(),
+    }
+}
+
+fn format_currency_result(value: f64, code: &str) -> ConversionResult {
+    let raw = format!("{:.2}", value);
+    let display = raw.clone();
+
+    ConversionResult {
+        value,
+        raw_value: raw,
+        display_value: format!("{} {}", display, code),
+        target_symbol: code.to_string(),
+    }
+}
+
+fn build_unit_table() -> Vec<UnitDef> {
+    vec![
+        // Temperature (base: Kelvin)
+        UnitDef {
+            _id: "celsius",
+            symbol: "°C",
+            aliases: &["c", "°c", "celsius", "degc", "centigrade"],
+            category: Category::Temperature,
+            conversion: Conversion::Custom {
+                to_base: |v| v + 273.15,
+                from_base: |v| v - 273.15,
+            },
+        },
+        UnitDef {
+            _id: "fahrenheit",
+            symbol: "°F",
+            aliases: &["f", "°f", "fahrenheit", "degf"],
+            category: Category::Temperature,
+            conversion: Conversion::Custom {
+                to_base: |v| (v - 32.0) * 5.0 / 9.0 + 273.15,
+                from_base: |v| (v - 273.15) * 9.0 / 5.0 + 32.0,
+            },
+        },
+        UnitDef {
+            _id: "kelvin",
+            symbol: "K",
+            aliases: &["k", "kelvin"],
+            category: Category::Temperature,
+            conversion: Conversion::Factor(1.0), // base
+        },
+        // Length (base: meter)
+        UnitDef {
+            _id: "millimeter",
+            symbol: "mm",
+            aliases: &["mm", "millimeter", "millimeters", "millimetre"],
+            category: Category::Length,
+            conversion: Conversion::Factor(0.001),
+        },
+        UnitDef {
+            _id: "centimeter",
+            symbol: "cm",
+            aliases: &["cm", "centimeter", "centimeters", "centimetre"],
+            category: Category::Length,
+            conversion: Conversion::Factor(0.01),
+        },
+        UnitDef {
+            _id: "meter",
+            symbol: "m",
+            aliases: &["m", "meter", "meters", "metre", "metres"],
+            category: Category::Length,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "kilometer",
+            symbol: "km",
+            aliases: &["km", "kms", "kilometer", "kilometers", "kilometre"],
+            category: Category::Length,
+            conversion: Conversion::Factor(1000.0),
+        },
+        UnitDef {
+            _id: "inch",
+            symbol: "in",
+            aliases: &["in", "inch", "inches"],
+            category: Category::Length,
+            conversion: Conversion::Factor(0.0254),
+        },
+        UnitDef {
+            _id: "foot",
+            symbol: "ft",
+            aliases: &["ft", "foot", "feet"],
+            category: Category::Length,
+            conversion: Conversion::Factor(0.3048),
+        },
+        UnitDef {
+            _id: "yard",
+            symbol: "yd",
+            aliases: &["yd", "yard", "yards"],
+            category: Category::Length,
+            conversion: Conversion::Factor(0.9144),
+        },
+        UnitDef {
+            _id: "mile",
+            symbol: "mi",
+            aliases: &["mi", "mile", "miles"],
+            category: Category::Length,
+            conversion: Conversion::Factor(1609.344),
+        },
+        UnitDef {
+            _id: "nautical_mile",
+            symbol: "nmi",
+            aliases: &["nmi", "nautical_mile", "nautical_miles"],
+            category: Category::Length,
+            conversion: Conversion::Factor(1852.0),
+        },
+        // Weight (base: kg)
+        UnitDef {
+            _id: "milligram",
+            symbol: "mg",
+            aliases: &["mg", "milligram", "milligrams"],
+            category: Category::Weight,
+            conversion: Conversion::Factor(0.000001),
+        },
+        UnitDef {
+            _id: "gram",
+            symbol: "g",
+            aliases: &["g", "gram", "grams"],
+            category: Category::Weight,
+            conversion: Conversion::Factor(0.001),
+        },
+        UnitDef {
+            _id: "kilogram",
+            symbol: "kg",
+            aliases: &["kg", "kilogram", "kilograms", "kilo", "kilos"],
+            category: Category::Weight,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "tonne",
+            symbol: "t",
+            aliases: &["t", "ton", "tons", "tonne", "tonnes", "metric_ton"],
+            category: Category::Weight,
+            conversion: Conversion::Factor(1000.0),
+        },
+        UnitDef {
+            _id: "short_ton",
+            symbol: "short_ton",
+            aliases: &["short_ton", "ton_us"],
+            category: Category::Weight,
+            conversion: Conversion::Factor(907.185),
+        },
+        UnitDef {
+            _id: "ounce",
+            symbol: "oz",
+            aliases: &["oz", "ounce", "ounces"],
+            category: Category::Weight,
+            conversion: Conversion::Factor(0.0283495),
+        },
+        UnitDef {
+            _id: "pound",
+            symbol: "lb",
+            aliases: &["lb", "lbs", "pound", "pounds"],
+            category: Category::Weight,
+            conversion: Conversion::Factor(0.453592),
+        },
+        UnitDef {
+            _id: "stone",
+            symbol: "st",
+            aliases: &["st", "stone", "stones"],
+            category: Category::Weight,
+            conversion: Conversion::Factor(6.35029),
+        },
+        // Volume (base: liter)
+        UnitDef {
+            _id: "milliliter",
+            symbol: "ml",
+            aliases: &["ml", "milliliter", "milliliters", "millilitre"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(0.001),
+        },
+        UnitDef {
+            _id: "liter",
+            symbol: "l",
+            aliases: &["l", "liter", "liters", "litre", "litres"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "us_gallon",
+            symbol: "gal",
+            aliases: &["gal", "gallon", "gallons"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(3.78541),
+        },
+        UnitDef {
+            _id: "imp_gallon",
+            symbol: "imp gal",
+            aliases: &["imp_gal", "gal_uk", "imperial_gallon"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(4.54609),
+        },
+        UnitDef {
+            _id: "quart",
+            symbol: "qt",
+            aliases: &["qt", "quart", "quarts"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(0.946353),
+        },
+        UnitDef {
+            _id: "pint",
+            symbol: "pt",
+            aliases: &["pt", "pint", "pints"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(0.473176),
+        },
+        UnitDef {
+            _id: "cup",
+            symbol: "cup",
+            aliases: &["cup", "cups"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(0.236588),
+        },
+        UnitDef {
+            _id: "fluid_ounce",
+            symbol: "fl oz",
+            aliases: &["floz", "fl_oz", "fluid_ounce", "fluid_ounces"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(0.0295735),
+        },
+        UnitDef {
+            _id: "tablespoon",
+            symbol: "tbsp",
+            aliases: &["tbsp", "tablespoon", "tablespoons"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(0.0147868),
+        },
+        UnitDef {
+            _id: "teaspoon",
+            symbol: "tsp",
+            aliases: &["tsp", "teaspoon", "teaspoons"],
+            category: Category::Volume,
+            conversion: Conversion::Factor(0.00492892),
+        },
+        // Speed (base: m/s)
+        UnitDef {
+            _id: "mps",
+            symbol: "m/s",
+            aliases: &["m/s", "mps", "meters_per_second"],
+            category: Category::Speed,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "kmh",
+            symbol: "km/h",
+            aliases: &["km/h", "kmh", "kph", "kilometers_per_hour"],
+            category: Category::Speed,
+            conversion: Conversion::Factor(0.277778),
+        },
+        UnitDef {
+            _id: "mph",
+            symbol: "mph",
+            aliases: &["mph", "miles_per_hour"],
+            category: Category::Speed,
+            conversion: Conversion::Factor(0.44704),
+        },
+        UnitDef {
+            _id: "knot",
+            symbol: "kn",
+            aliases: &["kn", "kt", "knot", "knots"],
+            category: Category::Speed,
+            conversion: Conversion::Factor(0.514444),
+        },
+        UnitDef {
+            _id: "fps",
+            symbol: "ft/s",
+            aliases: &["ft/s", "fps", "feet_per_second"],
+            category: Category::Speed,
+            conversion: Conversion::Factor(0.3048),
+        },
+        // Area (base: m²)
+        UnitDef {
+            _id: "sqmm",
+            symbol: "mm²",
+            aliases: &["mm2", "sqmm", "square_millimeter"],
+            category: Category::Area,
+            conversion: Conversion::Factor(0.000001),
+        },
+        UnitDef {
+            _id: "sqcm",
+            symbol: "cm²",
+            aliases: &["cm2", "sqcm", "square_centimeter"],
+            category: Category::Area,
+            conversion: Conversion::Factor(0.0001),
+        },
+        UnitDef {
+            _id: "sqm",
+            symbol: "m²",
+            aliases: &["m2", "sqm", "square_meter", "square_meters"],
+            category: Category::Area,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "sqkm",
+            symbol: "km²",
+            aliases: &["km2", "sqkm", "square_kilometer"],
+            category: Category::Area,
+            conversion: Conversion::Factor(1000000.0),
+        },
+        UnitDef {
+            _id: "sqft",
+            symbol: "ft²",
+            aliases: &["ft2", "sqft", "square_foot", "square_feet"],
+            category: Category::Area,
+            conversion: Conversion::Factor(0.092903),
+        },
+        UnitDef {
+            _id: "acre",
+            symbol: "ac",
+            aliases: &["ac", "acre", "acres"],
+            category: Category::Area,
+            conversion: Conversion::Factor(4046.86),
+        },
+        UnitDef {
+            _id: "hectare",
+            symbol: "ha",
+            aliases: &["ha", "hectare", "hectares"],
+            category: Category::Area,
+            conversion: Conversion::Factor(10000.0),
+        },
+        // Data (base: byte)
+        UnitDef {
+            _id: "byte",
+            symbol: "B",
+            aliases: &["b", "byte", "bytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "kilobyte",
+            symbol: "KB",
+            aliases: &["kb", "kilobyte", "kilobytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1000.0),
+        },
+        UnitDef {
+            _id: "megabyte",
+            symbol: "MB",
+            aliases: &["mb", "megabyte", "megabytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1_000_000.0),
+        },
+        UnitDef {
+            _id: "gigabyte",
+            symbol: "GB",
+            aliases: &["gb", "gigabyte", "gigabytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1_000_000_000.0),
+        },
+        UnitDef {
+            _id: "terabyte",
+            symbol: "TB",
+            aliases: &["tb", "terabyte", "terabytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1_000_000_000_000.0),
+        },
+        UnitDef {
+            _id: "kibibyte",
+            symbol: "KiB",
+            aliases: &["kib", "kibibyte", "kibibytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1024.0),
+        },
+        UnitDef {
+            _id: "mebibyte",
+            symbol: "MiB",
+            aliases: &["mib", "mebibyte", "mebibytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1_048_576.0),
+        },
+        UnitDef {
+            _id: "gibibyte",
+            symbol: "GiB",
+            aliases: &["gib", "gibibyte", "gibibytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1_073_741_824.0),
+        },
+        UnitDef {
+            _id: "tebibyte",
+            symbol: "TiB",
+            aliases: &["tib", "tebibyte", "tebibytes"],
+            category: Category::Data,
+            conversion: Conversion::Factor(1_099_511_627_776.0),
+        },
+        // Time (base: second)
+        UnitDef {
+            _id: "second",
+            symbol: "s",
+            aliases: &["s", "sec", "second", "seconds"],
+            category: Category::Time,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "minute",
+            symbol: "min",
+            aliases: &["min", "minute", "minutes"],
+            category: Category::Time,
+            conversion: Conversion::Factor(60.0),
+        },
+        UnitDef {
+            _id: "hour",
+            symbol: "h",
+            aliases: &["h", "hr", "hour", "hours"],
+            category: Category::Time,
+            conversion: Conversion::Factor(3600.0),
+        },
+        UnitDef {
+            _id: "day",
+            symbol: "d",
+            aliases: &["d", "day", "days"],
+            category: Category::Time,
+            conversion: Conversion::Factor(86400.0),
+        },
+        UnitDef {
+            _id: "week",
+            symbol: "wk",
+            aliases: &["wk", "week", "weeks"],
+            category: Category::Time,
+            conversion: Conversion::Factor(604800.0),
+        },
+        UnitDef {
+            _id: "month",
+            symbol: "mo",
+            aliases: &["mo", "month", "months"],
+            category: Category::Time,
+            conversion: Conversion::Factor(2_592_000.0),
+        },
+        UnitDef {
+            _id: "year",
+            symbol: "yr",
+            aliases: &["yr", "year", "years"],
+            category: Category::Time,
+            conversion: Conversion::Factor(31_536_000.0),
+        },
+        // Pressure (base: Pa)
+        UnitDef {
+            _id: "pascal",
+            symbol: "Pa",
+            aliases: &["pa", "pascal", "pascals"],
+            category: Category::Pressure,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "hectopascal",
+            symbol: "hPa",
+            aliases: &["hpa", "hectopascal"],
+            category: Category::Pressure,
+            conversion: Conversion::Factor(100.0),
+        },
+        UnitDef {
+            _id: "kilopascal",
+            symbol: "kPa",
+            aliases: &["kpa", "kilopascal"],
+            category: Category::Pressure,
+            conversion: Conversion::Factor(1000.0),
+        },
+        UnitDef {
+            _id: "bar",
+            symbol: "bar",
+            aliases: &["bar", "bars"],
+            category: Category::Pressure,
+            conversion: Conversion::Factor(100_000.0),
+        },
+        UnitDef {
+            _id: "millibar",
+            symbol: "mbar",
+            aliases: &["mbar", "millibar"],
+            category: Category::Pressure,
+            conversion: Conversion::Factor(100.0),
+        },
+        UnitDef {
+            _id: "psi",
+            symbol: "psi",
+            aliases: &["psi", "pounds_per_square_inch"],
+            category: Category::Pressure,
+            conversion: Conversion::Factor(6894.76),
+        },
+        UnitDef {
+            _id: "atmosphere",
+            symbol: "atm",
+            aliases: &["atm", "atmosphere", "atmospheres"],
+            category: Category::Pressure,
+            conversion: Conversion::Factor(101_325.0),
+        },
+        UnitDef {
+            _id: "mmhg",
+            symbol: "mmHg",
+            aliases: &["mmhg", "torr"],
+            category: Category::Pressure,
+            conversion: Conversion::Factor(133.322),
+        },
+        // Energy (base: Joule)
+        UnitDef {
+            _id: "joule",
+            symbol: "J",
+            aliases: &["j", "joule", "joules"],
+            category: Category::Energy,
+            conversion: Conversion::Factor(1.0),
+        },
+        UnitDef {
+            _id: "kilojoule",
+            symbol: "kJ",
+            aliases: &["kj", "kilojoule", "kilojoules"],
+            category: Category::Energy,
+            conversion: Conversion::Factor(1000.0),
+        },
+        UnitDef {
+            _id: "calorie",
+            symbol: "cal",
+            aliases: &["cal", "calorie", "calories"],
+            category: Category::Energy,
+            conversion: Conversion::Factor(4.184),
+        },
+        UnitDef {
+            _id: "kilocalorie",
+            symbol: "kcal",
+            aliases: &["kcal", "kilocalorie", "kilocalories"],
+            category: Category::Energy,
+            conversion: Conversion::Factor(4184.0),
+        },
+        UnitDef {
+            _id: "watt_hour",
+            symbol: "Wh",
+            aliases: &["wh", "watt_hour"],
+            category: Category::Energy,
+            conversion: Conversion::Factor(3600.0),
+        },
+        UnitDef {
+            _id: "kilowatt_hour",
+            symbol: "kWh",
+            aliases: &["kwh", "kilowatt_hour"],
+            category: Category::Energy,
+            conversion: Conversion::Factor(3_600_000.0),
+        },
+        UnitDef {
+            _id: "btu",
+            symbol: "BTU",
+            aliases: &["btu", "british_thermal_unit"],
+            category: Category::Energy,
+            conversion: Conversion::Factor(1055.06),
+        },
+    ]
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_celsius_to_fahrenheit() {
+        let r = convert_to(&100.0, "c", "f").unwrap();
+        assert!((r.value - 212.0).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_fahrenheit_to_celsius() {
+        let r = convert_to(&32.0, "f", "c").unwrap();
+        assert!((r.value - 0.0).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_body_temp_f_to_c() {
+        let r = convert_to(&98.6, "f", "c").unwrap();
+        assert!((r.value - 37.0).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_km_to_miles() {
+        let r = convert_to(&100.0, "km", "mi").unwrap();
+        assert!((r.value - 62.1371).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_miles_to_km() {
+        let r = convert_to(&1.0, "mi", "km").unwrap();
+        assert!((r.value - 1.60934).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_kg_to_lb() {
+        let r = convert_to(&1.0, "kg", "lb").unwrap();
+        assert!((r.value - 2.20462).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_lb_to_kg() {
+        let r = convert_to(&100.0, "lbs", "kg").unwrap();
+        assert!((r.value - 45.3592).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_liters_to_gallons() {
+        let r = convert_to(&3.78541, "l", "gal").unwrap();
+        assert!((r.value - 1.0).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_kmh_to_mph() {
+        let r = convert_to(&100.0, "kmh", "mph").unwrap();
+        assert!((r.value - 62.1371).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_gb_to_mb() {
+        let r = convert_to(&1.0, "gb", "mb").unwrap();
+        assert!((r.value - 1000.0).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_gib_to_mib() {
+        let r = convert_to(&1.0, "gib", "mib").unwrap();
+        assert!((r.value - 1024.0).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_hours_to_minutes() {
+        let r = convert_to(&2.5, "h", "min").unwrap();
+        assert!((r.value - 150.0).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_bar_to_psi() {
+        let r = convert_to(&1.0, "bar", "psi").unwrap();
+        assert!((r.value - 14.5038).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_kcal_to_kj() {
+        let r = convert_to(&1.0, "kcal", "kj").unwrap();
+        assert!((r.value - 4.184).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_sqm_to_sqft() {
+        let r = convert_to(&1.0, "m2", "ft2").unwrap();
+        assert!((r.value - 10.7639).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_unknown_unit_returns_none() {
+        assert!(convert_to(&100.0, "xyz", "abc").is_none());
+    }
+
+    #[test]
+    fn test_cross_category_returns_none() {
+        assert!(convert_to(&100.0, "km", "kg").is_none());
+    }
+
+    #[test]
+    fn test_convert_common_returns_results() {
+        let results = convert_common(&100.0, "km");
+        assert!(!results.is_empty());
+        assert!(results.len() <= 5);
+    }
+
+    #[test]
+    fn test_convert_common_excludes_source() {
+        let results = convert_common(&100.0, "km");
+        for r in &results {
+            assert_ne!(r.target_symbol, "km");
+        }
+    }
+
+    #[test]
+    fn test_alias_case_insensitive() {
+        let r1 = convert_to(&100.0, "KM", "MI").unwrap();
+        let r2 = convert_to(&100.0, "km", "mi").unwrap();
+        assert!((r1.value - r2.value).abs() < 0.001);
+    }
+
+    #[test]
+    fn test_full_name_alias() {
+        let r = convert_to(&100.0, "kilometers", "miles").unwrap();
+        assert!((r.value - 62.1371).abs() < 0.01);
+    }
+
+    #[test]
+    fn test_format_currency_two_decimals() {
+        let r = convert_to(&1.0, "km", "mi").unwrap();
+        // display_value should have reasonable formatting
+        assert!(!r.display_value.is_empty());
+    }
+
+    #[test]
+    fn test_currency_alias_convert_to() {
+        // "dollar" and "euro" are aliases, not in the UNITS table
+        let r = convert_to(&20.0, "dollar", "euro");
+        // May return None if ECB rates unavailable (network), but should not panic
+        // In a network-available environment, this should return Some
+        if let Some(r) = r {
+            assert!(r.value > 0.0);
+            assert_eq!(r.target_symbol, "EUR");
+        }
+    }
+
+    #[test]
+    fn test_currency_alias_convert_common() {
+        let results = convert_common(&20.0, "dollar");
+        // May be empty if ECB rates unavailable, but should not panic
+        for r in &results {
+            assert!(r.value > 0.0);
+        }
+    }
+
+    #[test]
+    fn test_display_value_no_double_unit() {
+        let r = convert_to(&100.0, "km", "mi").unwrap();
+        // display_value should contain the symbol exactly once
+        let count = r.display_value.matches(&r.target_symbol).count();
+        assert_eq!(count, 1, "display_value '{}' should contain '{}' exactly once", r.display_value, r.target_symbol);
+    }
+}
--- a/crates/owlry-core/src/providers/mod.rs
+++ b/crates/owlry-core/src/providers/mod.rs
@@ -1,6 +1,9 @@
 // Core providers (no plugin equivalents)
 mod application;
 mod command;
+pub(crate) mod calculator;
+pub(crate) mod converter;
+pub(crate) mod system;

 // Native plugin bridge
 pub mod native_provider;
@@ -104,10 +107,24 @@ pub trait Provider: Send + Sync {
    fn items(&self) -> &[LaunchItem];
 }

+/// Trait for built-in providers that produce results per-keystroke.
+/// Unlike static `Provider`s which cache items via `refresh()`/`items()`,
+/// dynamic providers generate results on every query.
+pub(crate) trait DynamicProvider: Send + Sync {
+    #[allow(dead_code)]
+    fn name(&self) -> &str;
+    fn provider_type(&self) -> ProviderType;
+    fn query(&self, query: &str) -> Vec<LaunchItem>;
+    fn priority(&self) -> u32;
+}
+
 /// Manages all providers and handles searching
 pub struct ProviderManager {
    /// Core static providers (apps, commands, dmenu)
    providers: Vec<Box<dyn Provider>>,
+    /// Built-in dynamic providers (calculator, converter)
+    /// These are queried per-keystroke, like native dynamic plugins
+    builtin_dynamic: Vec<Box<dyn DynamicProvider>>,
    /// Static native plugin providers (need query() for submenu support)
    static_native_providers: Vec<NativeProvider>,
    /// Dynamic providers from native plugins (calculator, websearch, filesearch)
@@ -136,6 +153,7 @@ impl ProviderManager {
    ) -> Self {
        let mut manager = Self {
            providers: core_providers,
+            builtin_dynamic: Vec::new(),
            static_native_providers: Vec::new(),
            dynamic_providers: Vec::new(),
            widget_providers: Vec::new(),
@@ -178,6 +196,25 @@ impl ProviderManager {
        manager
    }

+    /// Get type IDs of built-in providers (for conflict detection with native plugins)
+    fn builtin_type_ids(&self) -> std::collections::HashSet<String> {
+        let mut ids: std::collections::HashSet<String> = self
+            .builtin_dynamic
+            .iter()
+            .filter_map(|p| match p.provider_type() {
+                ProviderType::Plugin(id) => Some(id),
+                _ => None,
+            })
+            .collect();
+        // Also include built-in static providers that use Plugin type
+        for p in &self.providers {
+            if let ProviderType::Plugin(id) = p.provider_type() {
+                ids.insert(id);
+            }
+        }
+        ids
+    }
+
    /// Create a self-contained ProviderManager from config.
    ///
    /// Loads native plugins, creates core providers (Application + Command),
@@ -277,7 +314,63 @@ impl ProviderManager {
            core_providers.push(provider);
        }

+        // Built-in dynamic providers
+        let mut builtin_dynamic: Vec<Box<dyn DynamicProvider>> = Vec::new();
+
+        if config.providers.calculator {
+            builtin_dynamic.push(Box::new(calculator::CalculatorProvider));
+            info!("Registered built-in calculator provider");
+        }
+
+        if config.providers.converter {
+            builtin_dynamic.push(Box::new(converter::ConverterProvider::new()));
+            info!("Registered built-in converter provider");
+        }
+
+        // Built-in static providers
+        if config.providers.system {
+            core_providers.push(Box::new(system::SystemProvider::new()));
+            info!("Registered built-in system provider");
+        }
+
+        // Compute built-in type IDs to detect conflicts with native plugins.
+        // A native plugin whose type_id matches a built-in provider would
+        // produce duplicate results, so we skip it.
+        let builtin_ids: std::collections::HashSet<String> = {
+            let mut ids = std::collections::HashSet::new();
+            // Dynamic built-ins (calculator, converter)
+            for p in &builtin_dynamic {
+                if let ProviderType::Plugin(id) = p.provider_type() {
+                    ids.insert(id);
+                }
+            }
+            // Static built-ins added to core_providers (e.g. system)
+            for p in &core_providers {
+                if let ProviderType::Plugin(id) = p.provider_type() {
+                    ids.insert(id);
+                }
+            }
+            ids
+        };
+
+        let native_providers: Vec<NativeProvider> = native_providers
+            .into_iter()
+            .filter(|provider| {
+                let type_id = provider.type_id();
+                if builtin_ids.contains(type_id) {
+                    info!(
+                        "Skipping native plugin '{}' — built-in provider exists",
+                        type_id
+                    );
+                    false
+                } else {
+                    true
+                }
+            })
+            .collect();
+
        let mut manager = Self::new(core_providers, native_providers);
+        manager.builtin_dynamic = builtin_dynamic;
        manager.runtimes = runtimes;
        manager.runtime_type_ids = runtime_type_ids;
        manager
@@ -618,6 +711,28 @@ impl ProviderManager {
                    results.push((item, base_score + grouping_bonus - idx as i64));
                }
            }
+
+            // Built-in dynamic providers (calculator, converter)
+            for provider in &self.builtin_dynamic {
+                if !filter.is_active(provider.provider_type()) {
+                    continue;
+                }
+                let dynamic_results = provider.query(query);
+                let base_score = provider.priority() as i64;
+
+                let grouping_bonus: i64 = match provider.provider_type() {
+                    ProviderType::Plugin(ref id)
+                        if matches!(id.as_str(), "calc" | "conv") =>
+                    {
+                        10_000
+                    }
+                    _ => 0,
+                };
+
+                for (idx, item) in dynamic_results.into_iter().enumerate() {
+                    results.push((item, base_score + grouping_bonus - idx as i64));
+                }
+            }
        }

        // Empty query (after checking special providers) - return frecency-sorted items
@@ -1101,4 +1216,24 @@ mod tests {
        assert_eq!(results.len(), 1);
        assert_eq!(results[0].0.name, "Firefox");
    }
+
+    #[test]
+    fn test_builtin_type_ids_includes_dynamic_and_static() {
+        use super::calculator::CalculatorProvider;
+        use super::converter::ConverterProvider;
+        use super::system::SystemProvider;
+
+        let mut pm = ProviderManager::new(
+            vec![Box::new(SystemProvider::new())],
+            vec![],
+        );
+        pm.builtin_dynamic = vec![
+            Box::new(CalculatorProvider),
+            Box::new(ConverterProvider::new()),
+        ];
+        let ids = pm.builtin_type_ids();
+        assert!(ids.contains("calc"));
+        assert!(ids.contains("conv"));
+        assert!(ids.contains("sys"));
+    }
 }
--- a/crates/owlry-core/src/providers/system.rs
+++ b/crates/owlry-core/src/providers/system.rs
@@ -0,0 +1,148 @@
+use super::{LaunchItem, Provider, ProviderType};
+
+/// Built-in system provider. Returns a fixed set of power and session management actions.
+///
+/// This is a static provider — items are populated in `new()` and `refresh()` is a no-op.
+pub(crate) struct SystemProvider {
+    items: Vec<LaunchItem>,
+}
+
+impl SystemProvider {
+    pub fn new() -> Self {
+        let commands: &[(&str, &str, &str, &str, &str)] = &[
+            (
+                "shutdown",
+                "Shutdown",
+                "Power off the system",
+                "system-shutdown",
+                "systemctl poweroff",
+            ),
+            (
+                "reboot",
+                "Reboot",
+                "Restart the system",
+                "system-reboot",
+                "systemctl reboot",
+            ),
+            (
+                "reboot-bios",
+                "Reboot to BIOS",
+                "Restart into UEFI/BIOS setup",
+                "system-reboot",
+                "systemctl reboot --firmware-setup",
+            ),
+            (
+                "suspend",
+                "Suspend",
+                "Suspend to RAM",
+                "system-suspend",
+                "systemctl suspend",
+            ),
+            (
+                "hibernate",
+                "Hibernate",
+                "Suspend to disk",
+                "system-suspend-hibernate",
+                "systemctl hibernate",
+            ),
+            (
+                "lock",
+                "Lock Screen",
+                "Lock the session",
+                "system-lock-screen",
+                "loginctl lock-session",
+            ),
+            (
+                "logout",
+                "Log Out",
+                "End the current session",
+                "system-log-out",
+                "loginctl terminate-session self",
+            ),
+        ];
+
+        let items = commands
+            .iter()
+            .map(|(action_id, name, description, icon, command)| LaunchItem {
+                id: format!("sys:{}", action_id),
+                name: name.to_string(),
+                description: Some(description.to_string()),
+                icon: Some(icon.to_string()),
+                provider: ProviderType::Plugin("sys".into()),
+                command: command.to_string(),
+                terminal: false,
+                tags: vec!["system".into()],
+            })
+            .collect();
+
+        Self { items }
+    }
+}
+
+impl Provider for SystemProvider {
+    fn name(&self) -> &str {
+        "System"
+    }
+
+    fn provider_type(&self) -> ProviderType {
+        ProviderType::Plugin("sys".into())
+    }
+
+    fn refresh(&mut self) {
+        // Static provider — no-op
+    }
+
+    fn items(&self) -> &[LaunchItem] {
+        &self.items
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn has_seven_actions() {
+        let provider = SystemProvider::new();
+        assert_eq!(provider.items().len(), 7);
+    }
+
+    #[test]
+    fn contains_expected_action_names() {
+        let provider = SystemProvider::new();
+        let names: Vec<&str> = provider.items().iter().map(|i| i.name.as_str()).collect();
+        assert!(names.contains(&"Shutdown"));
+        assert!(names.contains(&"Reboot"));
+        assert!(names.contains(&"Lock Screen"));
+        assert!(names.contains(&"Log Out"));
+    }
+
+    #[test]
+    fn provider_type_is_sys_plugin() {
+        let provider = SystemProvider::new();
+        assert_eq!(provider.provider_type(), ProviderType::Plugin("sys".into()));
+    }
+
+    #[test]
+    fn shutdown_command_is_correct() {
+        let provider = SystemProvider::new();
+        let shutdown = provider
+            .items()
+            .iter()
+            .find(|i| i.name == "Shutdown")
+            .expect("Shutdown item must exist");
+        assert_eq!(shutdown.command, "systemctl poweroff");
+    }
+
+    #[test]
+    fn all_items_have_system_tag() {
+        let provider = SystemProvider::new();
+        for item in provider.items() {
+            assert!(
+                item.tags.contains(&"system".to_string()),
+                "item '{}' is missing 'system' tag",
+                item.name
+            );
+        }
+    }
+}
--- a/crates/owlry/Cargo.toml
+++ b/crates/owlry/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "owlry"
-version = "1.0.5"
+version = "1.0.6"
 edition = "2024"
 rust-version = "1.90"
 description = "A lightweight, owl-themed application launcher for Wayland"
--- a/crates/owlry/src/client.rs
+++ b/crates/owlry/src/client.rs
@@ -5,7 +5,7 @@ use std::time::Duration;

 use owlry_core::ipc::{ProviderDesc, Request, Response, ResultItem};

-/// IPC client that connects to the owlry-core daemon Unix socket
+/// IPC client that connects to the owlryd daemon Unix socket
 /// and provides typed methods for all IPC operations.
 pub struct CoreClient {
    stream: UnixStream,
@@ -38,15 +38,15 @@ impl CoreClient {

        // Socket not available — try to start the daemon.
        let status = std::process::Command::new("systemctl")
-            .args(["--user", "start", "owlry-core"])
+            .args(["--user", "start", "owlryd"])
            .status()
            .map_err(|e| {
-                io::Error::other(format!("failed to start owlry-core via systemd: {e}"))
+                io::Error::other(format!("failed to start owlryd via systemd: {e}"))
            })?;

        if !status.success() {
            return Err(io::Error::other(format!(
-                "systemctl --user start owlry-core exited with status {}",
+                "systemctl --user start owlryd exited with status {}",
                status
            )));
        }
--- a/crates/owlry/src/ui/main_window.rs
+++ b/crates/owlry/src/ui/main_window.rs
@@ -241,36 +241,18 @@ impl MainWindow {
            search_entry_for_refresh.emit_by_name::<()>("changed", &[]);
        });

-        // Set up periodic widget auto-refresh (every 5 seconds) — local backend only
-        // In daemon mode, the daemon handles widget refresh and results come via IPC
-        if main_window.is_dmenu_mode {
-            // dmenu typically has no widgets, but this is harmless
+        // Periodic widget refresh — local backend only.
+        // In daemon mode, the daemon handles widget refresh internally;
+        // the UI gets updated data on the next user-initiated search.
+        // We do NOT re-query in daemon mode because it resets the user's
+        // scroll position and selection.
+        if !matches!(&*main_window.backend.borrow(), SearchBackend::Daemon(_)) {
+            let backend_for_auto = main_window.backend.clone();
+            gtk4::glib::timeout_add_local(std::time::Duration::from_secs(5), move || {
+                backend_for_auto.borrow_mut().refresh_widgets();
+                gtk4::glib::ControlFlow::Continue
+            });
        }
-        let backend_for_auto = main_window.backend.clone();
-        let current_results_for_auto = main_window.current_results.clone();
-        let submenu_state_for_auto = main_window.submenu_state.clone();
-        let search_entry_for_auto = main_window.search_entry.clone();
-        gtk4::glib::timeout_add_local(std::time::Duration::from_secs(5), move || {
-            let in_submenu = submenu_state_for_auto.borrow().active;
-
-            // For local backend: refresh widgets (daemon handles this itself)
-            backend_for_auto.borrow_mut().refresh_widgets();
-
-            // For daemon backend: re-query to get updated widget data
-            if !in_submenu {
-                if let SearchBackend::Daemon(_) = &*backend_for_auto.borrow() {
-                    // Trigger a re-search to pick up updated widget items from daemon
-                    search_entry_for_auto.emit_by_name::<()>("changed", &[]);
-                } else {
-                    // Local backend: update widget items in-place (legacy behavior)
-                    // This path is only hit in dmenu mode which doesn't have widgets,
-                    // but keep it for completeness.
-                    let _results = current_results_for_auto.borrow();
-                    // No-op for local mode without widget access
-                }
-            }
-            gtk4::glib::ControlFlow::Continue
-        });

        main_window
    }
--- a/docs/superpowers/plans/2026-03-28-builtin-providers.md
+++ b/docs/superpowers/plans/2026-03-28-builtin-providers.md
--- a/docs/superpowers/specs/2026-03-28-builtin-providers-design.md
+++ b/docs/superpowers/specs/2026-03-28-builtin-providers-design.md
@@ -0,0 +1,116 @@
+# Built-in Providers Migration — Design Spec
+
+## Goal
+
+Move calculator, converter, and system from external `.so` plugins (owlry-plugins repo) to native providers compiled into `owlry-core`. Remove 3 plugin AUR packages (transitional), 4 meta AUR packages (already deleted). Update READMEs for both repos.
+
+## Architecture
+
+The 3 plugins currently use the FFI plugin API (`PluginVTable`, `PluginItem`, etc.) and are loaded as `.so` files by `NativePluginLoader`. As built-in providers, they become native Rust modules inside `owlry-core/src/providers/` implementing the existing `Provider` trait — same as `ApplicationProvider` and `CommandProvider`.
+
+No changes to the plugin system itself. External plugins continue to work via `.so` loading.
+
+## Components
+
+### New modules in owlry-core
+
+- `providers/calculator.rs` — port of owlry-plugin-calculator (231 lines, depends on `meval`)
+- `providers/converter/mod.rs` — port of owlry-plugin-converter entry point
+- `providers/converter/parser.rs` — query parsing (235 lines, no new deps)
+- `providers/converter/units.rs` — unit definitions + conversion (944 lines, no new deps)
+- `providers/converter/currency.rs` — ECB rate fetching (313 lines, depends on `reqwest` blocking + `dirs` + `serde`)
+- `providers/system.rs` — port of owlry-plugin-system (257 lines, no new deps)
+
+### New owlry-core dependencies
+
+- `meval` — math expression evaluation (currently optional behind `lua` feature, make required)
+- `reqwest` with `blocking` feature — ECB currency rate fetching (currently optional behind `lua`, make required)
+- `dirs` — already a dependency
+- `serde`/`serde_json` — already dependencies
+
+### Modified files
+
+- `owlry-core/src/providers/mod.rs` — register the 3 new providers in `ProviderManager`, honor config toggles, classify calculator+converter as dynamic providers
+- `owlry-core/Cargo.toml` — move `meval` and `reqwest` from optional to required
+- `owlry-core/src/config/mod.rs` — add `converter` config toggle (calculator and system already exist)
+
+### Provider classification
+
+- Calculator → dynamic (queried per-keystroke via `query()`)
+- Converter → dynamic (queried per-keystroke via `query()`)
+- System → static (populated at `refresh()`, returns fixed list of actions)
+
+## Provider Type IDs
+
+Built-in providers use `ProviderType::Plugin(String)` with fixed IDs to maintain backward compatibility with the UI highlighting and filter system:
+
+- Calculator: `ProviderType::Plugin("calc".into())`
+- Converter: `ProviderType::Plugin("conv".into())`
+- System: `ProviderType::Plugin("sys".into())`
+
+This ensures the UI's highlighting logic (`matches!(id.as_str(), "calc" | "conv")`) and CSS badge classes (`.owlry-badge-calc`, `.owlry-badge-sys`) continue to work without changes.
+
+## Config
+
+Existing toggles in `[providers]`:
+
+```toml
+[providers]
+calculator = true   # already exists
+system = true       # already exists
+converter = true    # new — add with default true
+```
+
+When a toggle is false, the provider is not registered in `ProviderManager` at startup.
+
+## Currency Conversion
+
+The converter's currency feature uses `reqwest` (blocking) to fetch ECB exchange rates with a 24-hour file cache at `~/.cache/owlry/ecb_rates.json`. If the HTTP fetch fails (no network, timeout), currency conversion silently returns no results — unit conversion still works. This matches current plugin behavior.
+
+## AUR Changes
+
+### Main repo (owlry)
+
+- `aur/owlry-core/PKGBUILD` — bump version
+- Remove `aur/owlry-meta-*` directories (4 dirs, already deleted from AUR)
+
+### Plugins repo (owlry-plugins)
+
+- Remove crates: `owlry-plugin-calculator`, `owlry-plugin-converter`, `owlry-plugin-system`
+- Remove AUR dirs: `aur/owlry-plugin-calculator`, `aur/owlry-plugin-converter`, `aur/owlry-plugin-system` from tracked files
+- Push transitional PKGBUILDs to the 3 AUR repos:
+
+```bash
+pkgname=owlry-plugin-calculator  # (and converter, system)
+pkgver=<last_version>
+pkgrel=99
+pkgdesc="Transitional package — calculator is now built into owlry-core"
+arch=('any')
+depends=('owlry-core>=<new_version>')
+replaces=('owlry-plugin-calculator')
+# No source, no build, no package body
+```
+
+### Conflict prevention
+
+When owlry-core gains built-in calculator/converter/system, users who have the old `.so` plugins installed will have both the built-in provider AND the `.so` plugin active — duplicate results. The daemon should detect this: if a built-in provider ID matches a loaded native plugin ID, skip the native plugin. Add this check in `ProviderManager` when registering native plugins.
+
+## README Updates
+
+### Main repo README
+
+- Package table: remove separate plugin entries for calculator, converter, system — note them as built-in to owlry-core
+- Remove meta package section entirely
+- Update install examples (no need to install calculator/converter/system separately)
+
+### Plugins repo README
+
+- Remove calculator, converter, system from plugin listing
+- Add note that these 3 are built into owlry-core
+
+## Testing
+
+- Port existing plugin tests directly — they test provider logic, not FFI wrappers
+- `cargo test -p owlry-core --lib` covers all 3 new providers
+- Add conflict detection test (built-in provider ID vs native plugin ID)
+- Manual verification: `= 5+3` (calc), `20F` (conv), `20 euro to dollar` (currency), system actions
--- a/8
+++ b/8
@@ -60,17 +60,17 @@ install-local:

    echo "Installing binaries..."
    sudo install -Dm755 target/release/owlry /usr/bin/owlry
-    sudo install -Dm755 target/release/owlry-core /usr/bin/owlry-core
+    sudo install -Dm755 target/release/owlryd /usr/bin/owlryd

    echo "Installing runtimes..."
    [ -f target/release/libowlry_lua.so ] && sudo install -Dm755 target/release/libowlry_lua.so /usr/lib/owlry/runtimes/liblua.so
    [ -f target/release/libowlry_rune.so ] && sudo install -Dm755 target/release/libowlry_rune.so /usr/lib/owlry/runtimes/librune.so

    echo "Installing systemd service files..."
-    [ -f systemd/owlry-core.service ] && sudo install -Dm644 systemd/owlry-core.service /usr/lib/systemd/user/owlry-core.service
-    [ -f systemd/owlry-core.socket ] && sudo install -Dm644 systemd/owlry-core.socket /usr/lib/systemd/user/owlry-core.socket
+    [ -f systemd/owlryd.service ] && sudo install -Dm644 systemd/owlryd.service /usr/lib/systemd/user/owlryd.service
+    [ -f systemd/owlryd.socket ] && sudo install -Dm644 systemd/owlryd.socket /usr/lib/systemd/user/owlryd.socket

-    echo "Done. Start daemon: systemctl --user enable --now owlry-core.service"
+    echo "Done. Start daemon: systemctl --user enable --now owlryd.service"

 # === Version Management ===

--- a/systemd/owlry-core.service
+++ b/systemd/owlry-core.service
@@ -5,7 +5,7 @@ After=graphical-session.target

 [Service]
 Type=simple
-ExecStart=/usr/bin/owlry-core
+ExecStart=/usr/bin/owlryd
 Restart=on-failure
 RestartSec=3
 Environment=RUST_LOG=warn
--- a/systemd/owlry-core.socket
+++ b/systemd/owlry-core.socket
Author	SHA1	Message	Date
vikingowl	f189f4b1ce	chore(owlry): bump version to 1.0.6	2026-03-28 12:40:20 +01:00
vikingowl	422ea6d816	chore(owlry-core): bump version to 1.2.1	2026-03-28 12:40:18 +01:00
vikingowl	8b444eec3b	refactor: rename daemon binary from owlry-core to owlryd - Binary: owlry-core → owlryd - Systemd: owlry-core.service → owlryd.service, owlry-core.socket → owlryd.socket - Client: systemctl start owlryd - AUR package name stays owlry-core (installs owlryd binary)	2026-03-28 12:39:37 +01:00
vikingowl	6d0bf1c401	chore(aur): update owlry-core to 1.2.0	2026-03-28 12:26:40 +01:00
vikingowl	c8d8298274	chore(owlry-core): bump version to 1.2.0	2026-03-28 12:26:15 +01:00
vikingowl	62f6e1d4b0	docs: update README for built-in providers migration Calculator, converter, and system are now built into owlry-core. Remove meta package references. Update install instructions and package tables.	2026-03-28 12:25:33 +01:00
vikingowl	bf1d759cb2	chore: remove retired meta package AUR dirs owlry-meta-essentials, owlry-meta-full, owlry-meta-tools, and owlry-meta-widgets have been deleted from AUR. Remove local dirs.	2026-03-28 12:24:27 +01:00
vikingowl	3f9f4bb112	feat(core): skip native plugins that conflict with built-in providers When users upgrade owlry-core but still have old .so plugins installed, the conflict detection skips the native plugin to prevent duplicate results.	2026-03-28 12:22:13 +01:00
vikingowl	c5f1f35167	feat(core): register built-in providers in ProviderManager Calculator and converter registered as built-in dynamic providers. System registered as built-in static provider. All gated by config toggles (calculator, converter, system — default true).	2026-03-28 12:19:12 +01:00
vikingowl	81626c33dd	feat(core): add built-in converter provider	2026-03-28 12:14:31 +01:00
vikingowl	99d38a66b8	feat(core): add built-in system provider	2026-03-28 12:09:19 +01:00
vikingowl	8b4c704501	feat(core): add built-in calculator provider	2026-03-28 12:07:43 +01:00
vikingowl	27e296e333	feat(core): add DynamicProvider trait and builtin_dynamic support Foundation for built-in calculator, converter, and system providers. DynamicProvider trait for per-keystroke providers. ProviderManager iterates builtin_dynamic alongside native dynamic plugins in search.	2026-03-28 12:03:45 +01:00
vikingowl	173d72ad43	docs: add built-in providers migration implementation plan	2026-03-28 11:59:00 +01:00
vikingowl	3eea902c7f	docs: add built-in providers migration design spec	2026-03-28 11:52:58 +01:00
vikingowl	a12e850c94	fix(ui): remove periodic re-query that reset selection position The 5-second timer emitted 'changed' on the search entry in daemon mode, triggering a full re-query that rebuilt the result list and selected row 0 — jumping the user back to the top while browsing. Widget refresh is a daemon-side concern; the UI gets updated data on the next user-initiated search. Only keep the timer for local (dmenu) mode where the UI owns the providers directly.	2026-03-28 11:41:37 +01:00
vikingowl	eccfb217d4	chore(aur): update owlry 1.0.5, owlry-core 1.1.3	2026-03-28 11:35:57 +01:00