Congratulations on finding this tiny corner of the internet! I rather like Gemini so of course I'll set something up even if my main presence is elsewhere.
I'll start by mentioning that rawtext.club is really awesome. I couldn't really make sense of what it's like from the descriptions, so let me try to explain. The key thing about rawtext.club is inventing and implementing social software based on homedirs. Yes, homedirs. And this is unexpectedly fun, and the people who do this are really cool!
Usually messaging relies on some kind of a client-server architecture. But here the software basically scans everyone's homedir for their messages and the content is built from those individual bits. Of course this model has implications, good and bad. The model would probably not scale beyond thousands of active users. OTOH everyone truly owns their content and can edit or remove it at will.
Anyway, all in all, this social experiment is refreshing, fun and thought provoking. I sincerely recommend joining if this sounds like your cup of tea!
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I've personally contributed one tool, for listing recent updates to the actual messaging tools. You might get the general idea of how other tools work from its source.
recent: a meta-tool for rawtext.club tools
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Also, check out my main gemini space: