Add flake.nix

flake.nix

@@ -0,0 +1,87 @@
+{
+  description = "Quad4 Linking Tool development environment";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+        };
+
+        go = pkgs.go_1_25;
+
+        task = pkgs.buildGoModule rec {
+          pname = "task";
+          version = "3.46.3";
+
+          src = pkgs.fetchFromGitHub {
+            owner = "go-task";
+            repo = "task";
+            rev = "v${version}";
+            hash = "sha256-163b9ce6ab8afaf0247b60c742f7d7d66fbf1d1f64d91d5cdbf6d75b1dd54b52";
+          };
+
+          vendorHash = null;
+
+          doCheck = false;
+
+          meta = with pkgs.lib; {
+            description = "A task runner / simpler Make alternative written in Go";
+            homepage = "https://taskfile.dev/";
+            license = licenses.mit;
+            maintainers = with maintainers; [ ];
+          };
+        };
+
+        wails = pkgs.buildGoModule rec {
+          pname = "wails";
+          version = "2.11.0";
+
+          src = pkgs.fetchFromGitHub {
+            owner = "wailsapp";
+            repo = "wails";
+            rev = "v${version}";
+            hash = "sha256-3dbdf683ce67968c1319436950e6da1f27e6d64802d477105fc4d7a60be19860";
+          };
+
+          vendorHash = null;
+
+          doCheck = false;
+
+          meta = with pkgs.lib; {
+            description = "Build applications using Go + HTML + CSS + JS";
+            homepage = "https://wails.io/";
+            license = licenses.mit;
+            maintainers = with maintainers; [ ];
+          };
+        };
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            go
+            task
+            nodejs_20
+            nodePackages.pnpm
+            wails
+            gcc
+            pkg-config
+          ];
+
+          shellHook = ''
+            echo "Quad4 Linking Tool Development Environment"
+            echo "Go version: $(go version)"
+            echo "Task version: $(task --version 2>/dev/null || echo 'installed')"
+            echo "Node version: $(node --version)"
+            echo "pnpm version: $(pnpm --version)"
+            echo "Wails version: $(wails version 2>/dev/null || echo 'installed')"
+          '';
+        };
+      });
+}
+