Cryptpad is a very interesting project imo but not so easy to install. The Yunohost package for it was broken since Oct. 2019 but a new update made it work. Note that the YH package for Cryptpad has a low level currently. If more people test it and give feedback or help we can make it into the decent quality apps section. Command-line install instructions at the bottom. I assume this will be merged with the “main” branch soon.