for cocreating and expanding the Fediverse world with the official PLC

[itaru2622]

As the first step for Fediverse, my below open source tool succeeded easy deploy and selfhost a full-stack bluesky that uses the official PLC.
https://github.com/itaru2622/bluesky-selfhost-env

So now, you can build multiple worlds next to the official bluesky on single official PLC. The instances deployed by my tool are based on the current bluesky-social open source code and are almost pure.

To cocreating and expanding wide and deep Fediverse world with each having its unique feature and space besides open sharing world, what else besides using the same PLC?

one idea is, receiving information from the multiple partner worlds (such as posts, events, and other info) by something in atproto layer(relay or appview) or application layer (jetstream or feed-generator).
how can get self-growing fediverse world, just like the space in the real sky?