I looked into it at one point and found it required a lot of underlying services and seemed really complex. Primarily I was worried about the maintenance costs moving forward with something like that.

There is an open-sourced option called GlitchTip (https://glitchtip.com/) that is much simpler to self-host. I believe they forked the Sentry repo before the license change. It's not quite as feature rich but is a pretty great alternative.