devices.pc: enable postgresql

devices/pc/default.nix

@@ -103,6 +103,7 @@ inputs:
         mariadb.mountFrom = "nodatacow";
         open-webui.ollamaHost = "127.0.0.1";
         howdy = {};
+        postgresql.enable = true;
       };
       bugs = [ "amdpstate" ];
       packages = { mathematica = {}; vasp = {}; };