DOKK is a free, community-curated data repository.

Mailing list: https://clif.peers.community/dokk/dokk.mlist
Data repository: https://clif.peers.community/dokk/data.git
Website: https://dokk.org

Other resources:
    IRC: #peers at irc.libera.chat
    Q&A: https://wotas.net
    Peers: https://peers.community