feat(nix): Add Flake

Signed-off-by: Steffen Vogel <[email protected]>

Author: stv0g

.reuse/dep5

@@ -3,6 +3,6 @@ Upstream-Name: go-rosenpass
 Upstream-Contact: Steffen Vogel <[email protected]>
 Source: https://github.com/cunicu/go-rosenpass
 
-Files: go.sum .renovaterc.json testdata/**
+Files: flake.lock go.sum .renovaterc.json testdata/**
 Copyright: 2023 Steffen Vogel <[email protected]>
 License: CC0-1.0

flake.lock

@@ -0,0 +1,34 @@
+# SPDX-FileCopyrightText: 2023-2024 Steffen Vogel <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+{
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+  }:
+    flake-utils.lib.eachDefaultSystem
+    (
+      system: let
+        pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        devShell = pkgs.mkShell {
+          buildInputs = with pkgs;
+            [
+              go
+              golangci-lint
+              reuse
+            ];
+
+            packages = with pkgs; [
+              rosenpass
+            ];
+        };
+
+        formatter = nixpkgs.nixfmt-rfc-style;
+      }
+    );
+}