Refactor codebase to use nix modules

hmModules/apps/obs/default.nix

@@ -0,0 +1,17 @@
+{ config, pkgs, lib, ... }:
+{
+  options.obs = {
+    enable = lib.mkEnableOption "Enables obs";
+  };
+
+  config = lib.mkIf config.obs.enable {
+    programs.obs-studio = {
+      enable = true;
+      plugins = with pkgs.obs-studio-plugins; [
+        wlrobs
+        obs-backgroundremoval
+        obs-pipewire-audio-capture
+      ];
+    };
+  };
+}