Found a Babel community that has been modified well, with features such as the ability to create groups on your own.

Members can create their own groups, though it costs 500 copper coins:

You can earn 200 copper coins by inviting friends to register:

If you don't have enough copper coins, you can also claim an allowance:

This community is working on a new version recently. I took a look, and it's also based on Babel for modifications, amazing!

Preview of the new homepage: