Added a Nix Flake and support for running from the Nix Store (#47)

* Added a Nix Flake and support for running from the Nix Store

* Removed variable imports since they're brough in at the top level.

* Removed redundan imports and remove unused files (moved to temp).

---------

Co-authored-by: Jas Singh <jaskiratpal.singh@outlook.com>

flake.nix

@@ -0,0 +1,61 @@
+{
+  description = "A Bar/Panel for Hyprland with extensive customizability.";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+    ags.url = "github:Aylur/ags";
+  };
+
+  outputs = { self, nixpkgs, ... }@inputs:
+  let
+    systems = [ "x86_64-linux" "x86_64-darwin" "aarch64-darwin" "aarch64-linux" ];
+      forEachSystem = nixpkgs.lib.genAttrs systems;
+      pkgsFor = forEachSystem (system: import nixpkgs {
+        inherit system;
+        config.allowUnfree = true;
+      });
+
+      devShellFor = system: nixpkgs.lib.genAttrs [ "default" ] (_: nixpkgs.legacyPackages.${system}.mkShell {
+        buildInputs = [
+          pkgsFor.${system}.fish
+          pkgsFor.${system}.typescript
+          pkgsFor.${system}.bun
+          pkgsFor.${system}.libnotify
+          pkgsFor.${system}.dart-sass
+          pkgsFor.${system}.fd
+          pkgsFor.${system}.btop
+          pkgsFor.${system}.bluez
+          pkgsFor.${system}.bluez-tools
+          pkgsFor.${system}.grimblast
+          pkgsFor.${system}.gpu-screen-recorder
+          pkgsFor.${system}.brightnessctl
+          pkgsFor.${system}.gnome.gnome-bluetooth
+          pkgsFor.${system}.python3
+          inputs.ags.packages.${system}.agsWithTypes
+        ];
+        nativeBuildInputs = with pkgsFor.${system}; [
+          nixpkgs-fmt
+          nil
+        ];
+        shellHook = ''
+          export GDK_BACKEND=wayland
+        '';
+      });  
+  in {
+    devShells = forEachSystem (system: devShellFor system);
+
+    overlay = forEachSystem(system: 
+      let
+        pkgs = pkgsFor.${system};
+      in final: prev: {
+        hyprpanel = (pkgs.callPackage ./. { inherit inputs; }).desktop.script;
+      });
+
+    packages = forEachSystem(system: 
+      let
+        pkgs = pkgsFor.${system};
+      in {
+        default = (pkgs.callPackage ./. { inherit inputs; }).desktop.script;
+      });
+  };
+}