Add flake.nix

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1743814133,
+        "narHash": "sha256-drDyYyUmjeYGiHmwB9eOPTQRjmrq3Yz26knwmMPLZFk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "250b695f41e0e2f5afbf15c6b12480de1fe0001b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,46 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      flake-utils,
+    }:
+    let
+      vpngate =
+        pkgs:
+        pkgs.buildGo123Module rec {
+          name = "vpngate";
+          src = ./.;
+          vendorHash = "sha256-sx56YaeXMkxnzrA2pL1Ghu4pQYCRL7JNd1UGlCtLHJg=";
+          nativeBuildInputs = pkgs.lib.optionals pkgs.stdenv.isLinux [ pkgs.makeWrapper ];
+          env.CGO_ENABLED = 0;
+          doCheck = false;
+        };
+
+      flakeForSystem =
+        nixpkgs: system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+          vg = vpngate pkgs;
+        in
+        {
+          packages = {
+            default = vg;
+            vpngate = vg;
+          };
+          devShell = pkgs.mkShell {
+            packages = with pkgs; [
+              gopls
+              gotools
+              go_1_23
+            ];
+          };
+        };
+    in
+    flake-utils.lib.eachDefaultSystem (system: flakeForSystem nixpkgs system);
+}