make vaultwarden a module and enable ssh-agent feature

modules/vaultwarden.nix

@@ -0,0 +1,32 @@
+{
+  config,
+  lib,
+  ...
+}:
+let
+  cfg = config.my.vaultwarden;
+in
+{
+  options.my.vaultwarden = {
+    enable = lib.mkEnableOption "vaultwarden";
+    domain = lib.mkOption {
+      type = lib.types.str;
+      default = "https://pass.cy7.sh";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.vaultwarden = {
+      enable = true;
+      dbBackend = "postgresql";
+      environmentFile = config.sops.secrets."vaultwarden/env".path;
+      config = {
+        ROCKET_ADDRESS = "0.0.0.0";
+        ROCKET_PORT = "8081";
+        DATABASE_URL = "postgresql://vaultwarden:vaultwarden@127.0.0.1:5432/vaultwarden";
+        EXPERIMENTAL_CLIENT_FEATURE_FLAGS = "fido2-vault-credentials,ssh-agent,ssh-key-vault-item,autofill-v2";
+        DOMAIN = cfg.domain;
+      };
+    };
+  };
+}