nix: init flake

flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1638122382,
+        "narHash": "sha256-sQzZzAbvKEqN9s0bzWuYmRaA03v40gaJ4+iL1LXjaeI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "74f7e4319258e287b0f9cb95426c9853b282730b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1641528457,
+        "narHash": "sha256-FyU9E63n1W7Ql4pMnhW2/rO9OftWZ37pLppn/c1aisY=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "ff377a78794d412a35245e05428c8f95fef3951f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -1,7 +1,32 @@
 {
-  description = "PolyMC";
+  description = "PolyMC flake";
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
 
-  outputs = inputs: {
-    overlay = import ./packages/nix/overlay.nix;
+  outputs = inputs@{ self, nixpkgs, flake-utils,... }:
+    flake-utils.lib.eachSystem [ "x86_64-linux" "aarch64-linux" ] (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
         };
+ 
+        packages = {
+          polymc = pkgs.libsForQt5.callPackage ./package/nix {};
+        };
+        
+        apps = {
+          polymc = flake-utils.lib.mkApp {
+            name = "PolyMC";
+            drv = packages.polymc;
+          };
+        };
+      in
+      {
+        inherit packages apps;
+
+        defaultPackage = packages.polymc;
+        defaultApp = apps.polymc;
+        overlay = import ./packages/nix/overlay.nix;
+      }
+    );
 }