It's targeted at small to medium communities, but at the same time it can reach outward through the federation mechanism that ActivityPub provides. Outside of immediate support to intercommunicate with other instances of its own platform, it will handle interactions from the larger fediverse at large: Mastodon, Pleroma, Pixelfed, etc.
Currently this is a one man project, namely me, and I would welcome support in any area that people could help: development, design, documentation, graphics, copy, etc.
The project can be found at https://github.com/mariusor/go-littr, and if anyone is interested there is a mailing list where people can get in touch: https://lists.sr.ht/~mariusor/activitypub-go
Some details about the project can be found on its wiki: https://man.sr.ht/~mariusor/go-activitypub/brutalinks/index....
[edit] for the curious, there's also a demo instance at https://littr.me