Sharkey's original upstream was moved to their own git system on https://activitypub.software/TransFem-org/Sharkey
I will try to keep this repo up to date with Sharkey's upstream.
- ActivityPub support
Not on Sharkey? No problem! Not only can Sharkey instances talk to each other, but you can make friends with people on other networks like Mastodon and Pixelfed! - Federated Backgrounds and Music status
You can add a background to your profile as well as a music status via ListenBrainz, show everyone what music you are currently listening to - Mastodon API
Sharkey implements the Mastodon API unlike normal Misskey - UI/UX Improvements
Sharkey makes some UI/UX improvements to make it easier to navigate - Sign-Up Approval
With Sharkey, you can enable sign-ups, subject to manual moderator approval and mandatory user-provided reasons for joining. - Rich Web UI
Sharkey has a rich and easy to use Web UI! It is highly customizable, from changing the layout and adding widgets to making custom themes. Furthermore, plugins can be created using AiScript, an original programming language. - And much more...
Sharkey Documentation can be found at Sharkey Documentation