Move colors and machinevars into modules

hosts/tsuki/services/postgres.nix

@@ -0,0 +1,17 @@
+{ config, pkgs, lib, secrets, ... }: {
+
+  services.postgresql = {
+    enable = true;
+    # port = secrets.ports.postgres
+    # dataDir = 
+    # settings = {};
+  };
+
+  services.pgadmin = {
+    enable = true;
+    openFirewall = true;
+    # port = secrets.ports.pgadmin
+    # settings = {
+    # };
+  };
+}