package for nix

Signed-off-by: Slendi <slendi@socopon.com>

flake.nix

@@ -1,5 +1,5 @@
 {
-  description = "Rust flake";
+  description = "MPD Discord daemon";
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
@@ -12,6 +12,7 @@
 
   outputs =
     {
+      self,
       nixpkgs,
       flake-utils,
       fenix,
@@ -21,7 +22,7 @@
       overlay =
         final: prev:
         let
-          fenixPkgs = fenix.packages.${final.system};
+          fenixPkgs = fenix.packages.${final.stdenv.hostPlatform.system};
         in
         {
           rustToolchain =
@@ -40,6 +41,7 @@
     in
     {
       overlays.default = overlay;
+      homeManagerModules.mpd-discord-presence = import ./nix/mpd-discord-presence.nix;
     }
     // flake-utils.lib.eachDefaultSystem (
       system:
@@ -65,6 +67,27 @@
             export RUST_SRC_PATH="${pkgs.rustToolchain}/lib/rustlib/src/rust/library"
           '';
         };
+
+        packages = rec {
+          mpd-discord-presence = pkgs.rustPlatform.buildRustPackage {
+            pname = "mpd-discord-presence";
+            version = "0.1.0";
+
+            src = ./.;
+
+            cargoLock.lockFile = ./Cargo.lock;
+
+            enableParallelBuild = true;
+
+            meta = {
+              description = "MPD Discord daemon";
+              homepage = "https://git.slendi.dev/Slendi/mpd-discord-presence";
+              license = pkgs.lib.licenses.gpl3;
+              mainProgrma = "mpd-discord-presence";
+            };
+          };
+          default = mpd-discord-presence;
+        };
       }
     );
 }