diff --git a/main.cpp b/main.cpp
index f88ed29..d45c545 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,14 +1,12 @@
 #include "snigdhaosblackbox.h"
-// #include "./ui_snigdhaosblackbox.h"
 
 #include <QApplication>
 
-// const char* INTERNET_CHECK_URL = "https://snigdhaos.org/";
 
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
-    SnigdhaOSBlackBox w;
+    SnigdhaOSBlackBox w(nullptr, a.arguments().length() > 1 ? a.arguments()[1] : "");
     w.show();
     return a.exec();
 }
diff --git a/snigdhaosblackbox.cpp b/snigdhaosblackbox.cpp
index 469a98f..8c8234a 100644
--- a/snigdhaosblackbox.cpp
+++ b/snigdhaosblackbox.cpp
@@ -20,7 +20,7 @@ SnigdhaOSBlackBox::~SnigdhaOSBlackBox()
     delete ui;
 }
 
-void SnigdhaOSBlackbox::doInternetUpRequest(){
+void SnigdhaOSBlackBox::doInternetUpRequest(){
     QNetworkAccessManager* = network_manager = new QNetworkAccessManager();
     auto network_reply = network_manager->head(QNetworkRequest(QString(INTERNET_CHECK_URL)));
 
@@ -42,4 +42,66 @@ void SnigdhaOSBlackbox::doInternetUpRequest(){
             doInternetUpRequest();
         }
     });
+}
+
+void SnigdhaOSBlackBox::doUpdate(){
+    if (qEnvironmentVaribaleSet("SNIGDHAOS_BLACKBOX_SELFUPDATE")) {
+        updateState(State::SELECT);
+        return;
+    }
+    auto process = new QProcess(this);
+    QTemporaryFile* file = new QTemporaryFile(this);
+    file->open();
+    file->setAutoRemove(true);
+    process->start("/usr/lib/snigdhaos/launch-terminal", QStringList() << QString("sudo pacman -Syyu 2>&1 && rm \"" + file->fileName() + "\"; read -p 'Press Ebter to Exit'"));
+    connect(process,QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished), this, [this, process, file](int exitcode, QProcess::ExitStatus status){
+        process->deleteLater();
+        file->deleteLater();
+        
+        if (exitcode == 0 && !file->exists()){
+            relaunchSelf("POST_UPDATE");
+        }
+        else{
+            relaunchSelf("UPDATE_RETRY");
+        }
+    });
+}
+
+void SnigdhaOSBlackBox::doApply(){
+    QStringList packages;
+    QStringList setup_commands;
+    QStringList prepare_commands;
+
+    auto checkboxList = ui->selectWidget_tabs->findChildren<QcheckBox*>();
+
+    for (auto checkbox : checkboxList){
+        if (checkbox->isChecked()){
+            packages += checkbox->property("packages").toStringList();
+            setup_commands += checkbox->property("setup_commands").toStringList();
+            prepare_commands += checkbox->property("prepare_commands").toStringList();
+        }
+    }
+
+    if (packages.empty()){
+        updateState(State::SUCCESS);
+        return;
+    }
+
+    if (packages.contains("docker")){
+        setup_commands += "systemctl enable --now docker.socket";
+    }
+    if (packages.contains("virt-manager-meta") && packages.contains("gnome-boxes")){
+        setup_commands += "systemctl enable --now libvirtd";
+    }
+
+    packages.removeDuplicates();
+
+    QTemporaryFile* prepareFile = new QTemporaryFile(this);
+    prepareFile->setAutoRemove(true);
+    prepareFile->open();
+    QTextStream prepareStream(prepareFile);
+    prepareStream << prepare_commands.join('\n');
+    prepareFile->close();
+    QTemporaryFile* packagesFiles = new QTemporaryFile(this);
+    
 }
\ No newline at end of file
diff --git a/snigdhaosblackbox.h b/snigdhaosblackbox.h
index 68fcfb5..57a455f 100644
--- a/snigdhaosblackbox.h
+++ b/snigdhaosblackbox.h
@@ -3,7 +3,7 @@
 
 #include <QMainWindow>
 #include <QAbstractButton>
-#include <QNetwork>
+#include <QNetwork/QNetworkAccessManager>
 
 QT_BEGIN_NAMESPACE
 namespace Ui {
@@ -16,10 +16,26 @@ class SnigdhaOSBlackBox : public QMainWindow
     Q_OBJECT
 
 public:
-    SnigdhaOSBlackBox(QWidget *parent = nullptr);
+    enum class State {
+        QUIT,
+        WELCOME,
+        INTERNET,
+        UPDATE,
+        UPDATE_RETRY,
+        SELECT,
+        APPLY,
+        APPLY_RETRY,
+        SUCCESS
+    };
+
+    SnigdhaOSBlackBox(QWidget *parent = nullptr, QString state = "WELCOME");
     ~SnigdhaOSBlackBox();
 
 private:
     Ui::SnigdhaOSBlackBox *ui;
+    QDateTime executable_modify_date;
+    State currentState;
+
+    void doInternetUpRequest();
 };
 #endif // SNIGDHAOSBLACKBOX_H