Add atuin

modules/nixos/server/atuin.nix

@@ -0,0 +1,24 @@
+{ pkgs, lib, config, ... }:
+let
+  cfg = config.mods.server.atuin;
+  port = config.mods.server.nginx.ports.atuin;
+in with lib; {
+  options.mods.server = {
+    atuin = {
+      enable = mkEnableOption {
+        default = false;
+        description = "enables atuin server";
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services.atuin = {
+      inherit port;
+      enable = true;
+      host = "0.0.0.0";
+      openRegistration = true;
+    };
+  };
+}
+