Mastodon (and the general "fediverse") is an inefficient disaster by design, but if you ignore that and go back to old-school forum software, your Raspberry Pi

Mastodon (and the general "fediverse") is an inefficient disaster by design, but if you ignore that and go back to old-school forum software, your Raspberry Pi will be just fine for a few hundred concurrent users (and way more for read-only traffic).