Define "curate" and "exciting"? How would you want them sorted?
I mean, there's sorting by "hot" which takes comments and votes into account, but beyond that I'd very much prefer all the algorithm fuckery to stay well clear of the fediverse, because it inevitably leads to everything going to shit. It invites "gaming the system", and before you know it your entire feed is full of ads, bots and iNfLuEnCeRs.
Also, for some folks, videos are a massive pain to watch due to accessibility issues. I'm medium lazy non-mongrel but I happen to have shit hearing, so fuck me, right?
Or, maybe, not go out of my way to fit my way of working to someone else's notice of how I should be doing things? If A works and B doesn't, unless I put in a lot of effort... Why exactly would I?
There's docker-mailserver which runs the entire stack in one container.
Pedantic side-note: you don't run "a docker". You run a container, and you happen to use docker to do so. Just like you don't send someone an Outlook or Chrome their website. Docker is just a way of running OCI containers, not the whole tech.