> Last but not least, an IRC server/channel in lieu of discord? I'm stuck in my ways!
IRC is nice for people who use it, but it has a huuuuge barrier to entry for new users. The very first thing you have to do is choose a client out of a list of 100 clients, half of which haven't been maintained since 2003. Then you need to set up a bouncer somewhere so that you can see messages that were posted when you were away. Those two things will filter out 99.99% of new people.
Or, you could use Discord (or Matrix); people sign up for an account and that's it.
Our open-source project switched from IRC to Matrix (after having been on IRC for over a decade before that), and got a noticeable uptick in engagement.
Unfortunately, Matrix still has some long-standing UI quirks, which would make me reluctant to use it in a context where I want people to pay me money; particularly if some of those are non-technical users.