#CryptPad is an open source privacy-friendly alternative to Google Docs:
You can also follow them on here:
CryptPad lets you edit documents online and work on them collaboratively.
It uses a "zero knowledge" principle where no one else (not even the service provider) can see your documents unless you give them an access key.
Accounts are free up to a certain storage limit, with paid accounts for additional storage.
If you don't trust a host, you can host it yourself?
It's open source, so AFAIK there's nothing to stop you installing it yourself?
mastodon.at is a microblogging site that federates with most instances on the Fediverse.