feat: nixos setup

prodsody/default.nix

@@ -0,0 +1,23 @@
+{
+  pkgs ? import <nixpkgs> { },
+}:
+
+pkgs.stdenv.mkDerivation {
+  pname = "jitsi-room-prosody";
+  version = "1.0.0";
+
+  src = pkgs.lib.cleanSource ./.;
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out/share
+    mv *.lua $out/share/
+    runHook postInstall
+  '';
+
+  meta = {
+    name = "Jitsi Rooms Prosody Plugin";
+    description = "Prosody configuration for Jitsi Rooms";
+  };
+}