@pinguin yip of course, Matrix is strong contender -- maybe we missed out on saying "not VC funded" which has certain repercussions especially in the longer term. Also Matrix arguably more geared towards corporate use cases these days and less around small-group/private messaging and, if we are not mistaken, Matrix servers are largely developed by the same org who also produces the main apps? Delta chat's e-mail servers are not developed or deployed by DC folks.