diff --git a/etcnixos/system-mreow.nix b/etcnixos/system-mreow.nix
index 1822cd0..42e127e 100644
--- a/etcnixos/system-mreow.nix
+++ b/etcnixos/system-mreow.nix
@@ -118,24 +118,4 @@
   # disable framework kernel module
   # https://github.com/NixOS/nixos-hardware/issues/1330
   hardware.framework.enableKmod = false;
-
-  # for database class
-  services.mysql = {
-    enable = true;
-    package = pkgs.mariadb;
-    ensureUsers = [
-      {
-        name = "root";
-        ensurePermissions = {
-          "*.*" = "ALL PRIVILEGES";
-        };
-      }
-      {
-        name = "${username}";
-        ensurePermissions = {
-          "*.*" = "ALL PRIVILEGES";
-        };
-      }
-    ];
-  };
 }
diff --git a/home-manager/gui.nix b/home-manager/gui.nix
index 2c947ca..5620f61 100644
--- a/home-manager/gui.nix
+++ b/home-manager/gui.nix
@@ -128,9 +128,6 @@
 
       # password manager
       keepassxc
-
-      # for database class
-      dbeaver-bin
     ]
     ++ (builtins.filter lib.isDerivation (builtins.attrValues nerd-fonts));