Worked for a startup making their own chat and it sucked up such a lot of effort on everyone's part trying to get all the tiny details working that everything e

Worked for a startup making their own chat and it sucked up such a lot of effort on everyone's part trying to get all the tiny details working that everything else started to suffer. I dunno though - even using something like Mattermost as the backend, you're probably still having to do a lot of UI work yourself as a wrapper around that. Damned if you do, damned if you don't?