I recently came across a new platform while browsing, and I was surprised by how smooth and fast the overall experience feels compared to others I've tried before, especially in terms of loading speed and usability
https://pen.absturztau.be/cv9993fho1w8/cv9993-reference
https://blog.librescrum.org/rbajeif80ph/rbaje-reference
http://write.tildeverse.org/cd44w9foeg/cd44-reference