add postgres for fun data

hosts/h001/mods/postgresql.nix

@@ -0,0 +1,24 @@
+{
+  pkgs,
+  ...
+}:
+{
+  config = {
+    services.postgresql = {
+      enable = true;
+      package = pkgs.postgresql_17.withJIT;
+      enableJIT = true;
+      authentication = ''
+        local all all trust
+        host all all 127.0.0.1/8 trust
+        host all all ::1/128 trust
+        host all all fc00::1/128 trust
+      '';
+    };
+
+    # Backup database
+    services.postgresqlBackup = {
+      enable = true;
+    };
+  };
+}