feat: nix flake

flake.nix

@@ -1,27 +1,27 @@
 {
-  inputs = {
-    nixpkgs.url      = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-utils.url  = "github:numtide/flake-utils";
-  };
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
 
-  outputs = { self, nixpkgs, flake-utils, ... }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        overlays = [  ];
-        pkgs = import nixpkgs {
-          inherit system overlays;
-        };
-      in
-      with pkgs;
-      {
-        devShell = mkShell {
-          buildInputs = [
-            go
-            gopls
-            goreleaser
-            gcc
-          ];
-        };
-      }
-    );
+  outputs =
+    { nixpkgs, ... }:
+    let
+      systems = [
+        "x86_64-linux"
+        "x86_64-darwin"
+        "i686-linux"
+        "aarch64-linux"
+        "aarch64-darwin"
+      ];
+      forAllSystems =
+        function: nixpkgs.lib.genAttrs systems (system: function nixpkgs.legacyPackages.${system});
+    in
+    {
+      packages = forAllSystems (pkgs: rec {
+        default = ctp;
+        ctp = pkgs.callPackage ./nix/default.nix { };
+      });
+
+      devShells = forAllSystems (pkgs: {
+        default = pkgs.callPackage ./nix/shell.nix { };
+      });
+    };
 }

nix/default.nix

@@ -0,0 +1,36 @@
+{ lib, buildGoModule }:
+let
+  version = "unstable";
+in
+buildGoModule {
+  pname = "catppuccin-cli";
+  inherit version;
+
+  src = lib.fileset.toSource {
+    root = ../.;
+    fileset = lib.fileset.intersection (lib.fileset.fromSource (lib.sources.cleanSource ../.)) (
+      lib.fileset.unions [
+        ../go.mod
+        ../go.sum
+        ../main.go
+        ../commands
+        ../query
+        ../shared
+      ]
+    );
+  };
+
+  vendorHash = "sha256-kwTPdktn1p4E/PvJ5kLDZZ0cZdx3u6gvFaPvtaeO8nw=";
+
+  ldflags = [
+    "-s"
+    "-w"
+    "-X main.version=${version}"
+  ];
+
+  postInstall = ''
+    mv $out/bin/cli $out/bin/ctp
+  '';
+
+  meta.mainPackage = "ctp";
+}

nix/shell.nix

@@ -0,0 +1,17 @@
+{
+  go,
+  gopls,
+  goreleaser,
+  callPackage,
+}:
+let
+  mainPkg = callPackage ./default.nix { };
+in
+mainPkg.overrideAttrs (oa: {
+  nativeBuildInputs = [
+    go
+    gopls
+    goreleaser
+    gcc
+  ] ++ (oa.nativeBuildInputs or [ ]);
+})