Add vaultwarden

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

packages/oidcwarden/default.nix

@@ -0,0 +1,34 @@
+{ pkgs, ... }:
+# AUTO-UPDATE: nix-update --flake oidcwarden
+# FIXME: https://github.com/dani-garcia/vaultwarden/pull/3899
+pkgs.rustPlatform.buildRustPackage rec {
+  pname = "oidcwarden";
+  version = "2025.5.1-4";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "Timshel";
+    repo = "OIDCWarden";
+    rev = "v${version}";
+    hash = "sha256-OEKksnZlL6kkNkU1pu7y58++EmunN0yQHwJtZwt3Cbs=";
+  };
+
+  useFetchCargoVendor = true;
+  cargoHash = "sha256-ZQ4Q5nD2WOkVX7OXEk1JTgN8zHvI6Cqmb1ifcHkXKp4=";
+
+  env.VW_VERSION = version;
+
+  nativeBuildInputs = with pkgs; [ pkg-config ];
+  buildInputs = with pkgs; [
+    openssl
+    libpq
+  ];
+
+  buildFeatures = [ "postgresql" ];
+
+  passthru = with pkgs.vaultwarden; {
+    inherit webvault updateScript;
+    tests = pkgs.lib.nixosTests.vaultwarden;
+  };
+
+  meta.mainProgram = "oidcwarden";
+}