Add littlelink

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

packages/littlelink-server/default.nix

@@ -0,0 +1,52 @@
+{ pkgs, ... }:
+# AUTO-UPDATE: nix-update --flake --version=branch=main littlelink-server --subpackage yarnSrc
+pkgs.stdenv.mkDerivation rec {
+  pname = "littlelink-server";
+  version = "0-unstable-2025-07-16";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "techno-tim";
+    repo = "littlelink-server";
+    rev = "fa9fb3a20375c6287ae134af9c2e9e754e0aebb6";
+    hash = "sha256-BUPqXpiofHlLKgbOYkZr+QEoRIdRgr8alrUzcGS9edc=";
+  };
+
+  yarnSrc = pkgs.stdenv.mkDerivation {
+    inherit src pname version;
+
+    offlineCache = pkgs.fetchYarnDeps {
+      yarnLock = src + "/yarn.lock";
+      hash = "sha256-nv1NgMm56wWlAYqqdH9UKTnWNhjxWBs1lmG+UCCQAzk=";
+    };
+
+    nativeBuildInputs = with pkgs; [
+      nodejs
+      yarnConfigHook
+      yarnBuildHook
+      npmHooks.npmInstallHook
+    ];
+
+    yarnBuildFlags = [ "--noninteractive" ];
+
+    installPhase = ''
+      mkdir -p $out/lib/${pname}
+      cp -r build node_modules $out/lib/${pname}
+    '';
+  };
+
+  wrapper = pkgs.writeShellApplication {
+    name = pname;
+    runtimeInputs = with pkgs; [ nodejs_20 ];
+    text = ''
+      cd ${yarnSrc}/lib/${pname}
+      exec node build/server.js "$@"
+    '';
+  };
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp ${wrapper}/bin/${pname} $out/bin/
+  '';
+
+  meta.mainProgram = pname;
+}