Hello_there

Now to get kbin/mbin to play nice with Lemmy and show that too

If you’re only doing one project every once in a while, consider just ordering parts from people online. They do the work, and mail you a finished part.

Build it yourself. Stash several mini computers connected to Lora radios around town. Connect to form a mesh all focused on the same fediverse page. Connect wifi hotspots to those servers, connecting phones to the hosted page, not to the internet.
You’d get a localized community site that by design can’t be infiltrated by people from across the country hating on you (e.g., San Francisco and Texas).
No idea on feasibility or how much work, but seems to address your question at least.

Linux noob here… But aren’t there user types? Like admin with install permissions and user type without ? Doesn’t that take care of most of your questions?