diff --git a/gtk3.nix b/gtk3.nix
new file mode 100644
index 0000000..848fea6
--- /dev/null
+++ b/gtk3.nix
@@ -0,0 +1,30 @@
+# gtk4.nix
+# Install GTK4/Libadwaita and other dependencies for common Pardus Apps/GTK Development
+let
+  pkgs = import <nixpkgs> {};
+in pkgs.mkShell {
+  packages = [
+    pkgs.gtk3
+    pkgs.gobject-introspection
+    pkgs.pkg-config
+    pkgs.libnotify
+    pkgs.libadwaita
+    pkgs.dbus
+    pkgs.apt
+    pkgs.libsoup
+    (pkgs.python3.withPackages (python-pkgs: [
+      python-pkgs.pycairo
+      python-pkgs.pygobject3
+      python-pkgs.pydbus
+      python-pkgs.dbus-python
+      python-pkgs.python-apt
+      python-pkgs.debian
+    ]))
+  ];
+  shellHook = ''
+    bash $(pwd "$0")/schemas/compile-schemas.sh
+    export GSETTINGS_SCHEMAS_PATH="$(pwd "$0")/schemas:$GSETTINGS_SCHEMAS_PATH"
+    export GSETTINGS_SCHEMA_DIR="$(pwd "$0")/schemas:$GSETTINGS_SCHEMA_DIR"
+    export XDG_DATA_DIRS="$(pwd "$0")/schemas:$XDG_DATA_DIRS"
+  '';
+}
\ No newline at end of file
diff --git a/gtk4.nix b/gtk4.nix
index 849d963..383294b 100644
--- a/gtk4.nix
+++ b/gtk4.nix
@@ -22,6 +22,7 @@ in pkgs.mkShell {
     ]))
   ];
   shellHook = ''
+    bash $(pwd "$0")/schemas/compile-schemas.sh
     export GSETTINGS_SCHEMAS_PATH="$(pwd "$0")/schemas:$GSETTINGS_SCHEMAS_PATH"
     export GSETTINGS_SCHEMA_DIR="$(pwd "$0")/schemas:$GSETTINGS_SCHEMA_DIR"
     export XDG_DATA_DIRS="$(pwd "$0")/schemas:$XDG_DATA_DIRS"
diff --git a/schemas/com.asandikci.pardus-security-center.gschema.xml b/schemas/com.asandikci.pardus-security-center.gschema.xml
index 94c3f10..8564e6c 100644
--- a/schemas/com.asandikci.pardus-security-center.gschema.xml
+++ b/schemas/com.asandikci.pardus-security-center.gschema.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <schemalist>
   <schema id="com.asandikci.pardus-security-center" path="/com/asandikci/pardus-security-center/">
-      <key name="first-run" type="b">
-          <default>true</default>
-          <summary>First Run</summary>
-          <description>Did application run before or is this first run?</description>
+      <key name="setup-completed" type="b">
+          <default>false</default>
+          <summary>Setup Completed</summary>
+          <description>Did application set up necessary packages/configurations (like clamav, ufw etc.) ?</description>
       </key>
   </schema>
 </schemalist>
\ No newline at end of file
diff --git a/schemas/gschemas.compiled b/schemas/gschemas.compiled
index 8a383b7..feca18f 100644
Binary files a/schemas/gschemas.compiled and b/schemas/gschemas.compiled differ