Lib.reviews is a free open source platform for reviewing anything, supported by data from open sources such as Wikidata, OpenStreetMap etc.
It's sort of a Libre alternative to Yelp.
You can follow the project at:
The project website is at https://lib.reviews
You can see the code or contribute at https://github.com/eloquence/lib.reviews
This is a brand new server run by the main developers of the project as a spin-off of mastodon.social It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!