That’s the problem. I know of a couple video games where the publisher closed their forums and opened a discord channel. I have no idea why people view them as equivalent things.

You could start a Lemmy community, subreddit, even a mastodon or Twitter account with the same investment and effort.

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SMTP in general is a pain to configure. I ran my own mail servers for a while and finally gave up and used a 3rd party service. Too many problems with antispam restrictions, and things like I’d finally get it configured, upgrade postfix or whatever and then it would all be screwed again.

I haven’t tried to get community tech support on Lemmy, so I wouldn’t know what it’s like firsthand. If people are really that difficult, sure, that sucks. But it sounds like the person asking needs to work on more fundamental linux skills than something specific to running a Lemmy instance, and the internet is full of information about that.

I wouldn’t expect running a publicly accessible server on the internet to be easy or a great idea for someone not familiar with the OS they’re using. Great way to learn, though.

Looks to be https://invent.kde.org/plasma/plasma-workspace/-/tree/master/klipper