Are there any major resources tracking all the open-source textbook type projects? I've seen some really cool stuff posted on HN like that Homopothy-Consistent

Are there any major resources tracking all the open-source textbook type projects? I've seen some really cool stuff posted on HN like that Homopothy-Consistent Mathematics textbook.[0] AIoM's OTI seems cool, but is limited in scope and OpenStax mostly makes their own textbooks so it also ends up limited in capacity [0] https://kerodon.net/ https://kerodon.net/