uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/servers/headscale/default.nix

@@ -0,0 +1,49 @@
+{ lib, buildGoModule, fetchFromGitHub, installShellFiles }:
+
+buildGoModule rec {
+  pname = "headscale";
+  version = "0.15.0";
+
+  src = fetchFromGitHub {
+    owner = "juanfont";
+    repo = "headscale";
+    rev = "v${version}";
+    sha256 = "sha256-ZgChln6jcxyEHbCy89kNnwd9qWcB0yDq05xFkM69WLs=";
+  };
+
+  vendorSha256 = "sha256-0jZ37tmBG8E0HS/wbQyQvAKo1UKQdaZDa+OTGfGDAi4=";
+
+  ldflags = [ "-s" "-w" "-X github.com/juanfont/headscale/cmd/headscale/cli.Version=v${version}" ];
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    installShellCompletion --cmd headscale \
+      --bash <($out/bin/headscale completion bash) \
+      --fish <($out/bin/headscale completion fish) \
+      --zsh <($out/bin/headscale completion zsh)
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/juanfont/headscale";
+    description = "An open source, self-hosted implementation of the Tailscale control server";
+    longDescription = ''
+      Tailscale is a modern VPN built on top of Wireguard. It works like an
+      overlay network between the computers of your networks - using all kinds
+      of NAT traversal sorcery.
+
+      Everything in Tailscale is Open Source, except the GUI clients for
+      proprietary OS (Windows and macOS/iOS), and the
+      'coordination/control server'.
+
+      The control server works as an exchange point of Wireguard public keys for
+      the nodes in the Tailscale network. It also assigns the IP addresses of
+      the clients, creates the boundaries between each user, enables sharing
+      machines between users, and exposes the advertised routes of your nodes.
+
+      Headscale implements this coordination server.
+    '';
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ nkje jk kradalby ];
+  };
+}