Add nix flake

README.md

@@ -28,6 +28,12 @@ brew tap ruimarinho/tap
 brew install gsts
 ```
 
+### nix flakes
+
+```shell
+nix shell github:ruimarinho/gsts
+```
+
 ### Other Platforms
 
 Install the package via `npm`:

flake.nix

@@ -0,0 +1,59 @@
+{
+  description = "gsts: AWS STS credentials via Google Workspace";
+
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:nixos/nixpkgs";
+    npmlock2nixSrc = {
+      url = "github:nix-community/npmlock2nix";
+      flake = false;
+    };
+  };
+
+  outputs = { self, nixpkgs, npmlock2nixSrc, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          config.allowUnfree = true;
+          config.permittedInsecurePackages = [
+            "nodejs-16.20.2"
+          ];
+        };
+
+        npmlock2nix = import npmlock2nixSrc { inherit pkgs; lib = pkgs.lib; };
+
+      in rec {
+        packages.gsts = npmlock2nix.v2.build {
+          src = ./.;
+          installPhase = ''
+            mkdir -p $out/bin
+            cp -r * $out
+            ln -sf $out/index.js $out/bin/gsts
+          '';
+
+          node_modules_attrs = {
+            PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD = 1;
+          };
+
+          buildCommands = [];
+        };
+
+        defaultPackage = self.packages.${system}.gsts;
+
+        overlays = final: prev: {
+          inherit (packages) gsts;
+        };
+
+        devShell = pkgs.mkShell {
+
+          CHROMIUM_PATH = "${pkgs.chromium}/bin/chromium";
+
+          packages = [
+            defaultPackage
+            pkgs.chromium
+          ];
+        };
+      }
+    );
+}