If you are going the way to self-host it so you own all your won data. all you have to do is run mattermost in production on hardware you control at 99.9% Or

If you are going the way to self-host it so you own all your won data. all you have to do is run mattermost in production on hardware you control at 99.9% Or 80% or whatever uptime is deemed necessary. Or you can use an out of the box host, but then your data is not in your direct control.