I've only ever used desktop Linux and don't have server admin experience (unless you count hosting Minecraft servers on my personal machine lol). Currently using Artix and Void for my desktop computers as I've grown fond of runit.
I'm going to get a VPS for some personal projects and am at the point of deciding what distro I want to use. While I imagine that systemd is generally the best for servers due to the far more widespread support (therefore it's better for the stability needs of a server), I have a somewhat high threat model compared to most people so I was wondering if maybe I should use something like runit instead which is much smaller and less vulnerable. Security needs are also the reason why I'm leaning away from using something like Debian, because how outdated the packages are would likely leave me open to vulnerabilities. Correct me if I'm misunderstanding any of that though.
Other than that I'm not sure what considerations there are to make for my server distro. Maybe a more mainstream distro would be more likely to have the software in its repos that I need to host my various projects. On the other hand, I don't have any experience with, say, Fedora, and it'd probably be a lot easier for me to stick to something I know.
In terms of what I want to do with the VPS, it'll be more general-purpose and hosting a few different projects. Currently thinking of hosting a Matrix instance, a Mastodon instance, a NextCloud instance, an SMTP server, and a light website, but I'm sure I'll want to stick more miscellaneous stuff on there too.
So what distro do you use for your server hosting? What things should I consider when picking a distro?
Debian has been rock solid for me.
It's not insecure. Quite the contrary debian repositories only include packages that has been through extensive testing and had been found secure and stable. And of course it regularly introduce security updates.
There's the inconvenient truth: it's easiest to secure an OS, say for enterprise life, the farther you are from the bleeding edge: churn is lower, the targets move dramatically slower, and testing an install set (as a set) is markedly easier. It's why enterprise linux distros are ALL version-branched at a given version, and only port security fixes in: if you need to change a package and start the extensive testing, keep it to security fixes and similarly drastic reasons.
So most ent-like distros aren't insecure; not at all. Security is the goal and the reason they endure wave after yearly wave of people not understanding why they don't surf that bleeding edge. They don't get it.
Enterprise distros also offer a really stable platform to release stuff on; that was a mantra the sales team used for Open that we'd stress in ISV Engineering too, as we dealt with companies and people porting onto Open. But ISVs had their own inexperienced types for whom the idea of a stable platform that guaranteed a long life to their product with guaranteed compatibility wasn't as valuable as "ooh shiny". But that was the indirect benefit: market your Sybase or ProgressDb on the brand new release and once it's working you don't have to care about library rug-pulls or similar surprises for a fucking decade (or half that as you start the next wave onto the next distro release). And 5 years is a much better cadence than 'every week'.
So while it's easy to secure and support something that never moves, that's also not feasible: you have to march forward. So ent distros stay a little back from the bleeding edge, market 'RHL7' or 'OL31' as a stable LTS distro, and try to get people onto it so they have a better time of it.
Just, now devs have to cope with libs and tools that are, on average, 5 years stale. For some, that's not acceptable. And that's always the challenge.