feat: postgres

modules/host.nix

@@ -3,6 +3,7 @@
     ./host/bluetooth.nix
     ./host/bootloader.nix
     ./host/console.nix
+    ./host/db.nix
     ./host/env.nix
     ./host/gamemode.nix
     ./host/gpg.nix

modules/host/db.nix

@@ -0,0 +1,10 @@
+{ lib, ... }:{
+  services.postgresql = {
+    enable = true;
+    ensureDatabases = [ "mydatabase" ];
+    authentication = lib.mkOverride 10 ''
+      #type database  DBuser  auth-method
+      local all       all     trust
+    '';
+  };
+}