If you want to help a really cool project, test the upcoming Version 6 of #xscreensaver.
Compared to nearly all other screen lockers, xscreensaver hasn't suffered from (trivial) lock bypass flaws. Its author, jwz, puts a lot of effort into secure design. Check his blog for some detailed blog articles on the topic.
https://www.jwz.org/blog/2021/02/xscreensaver-version-6-beta-1/
@Doomed_Daniel No, it's optional and need to be enabled via configure
@_xhr_
The blogpost somehow sounded like it's an integral part now (and the README also mentions libsystemd as a needed dependency) - glad to hear that's not the case!
@Doomed_Daniel Since I run only non-systemd operating systems this would be a 100% showstopper for me :)
@_xhr_
I don't use screensaver (I may well try his) but I started reading his posts regarding screensavers and security risks. I am not much of a security expert, but I find it very instructive. Thx for sharing :)
@DavidBosman Yes, jwz's blog posts are insightful and sometimes quite entertaining :)
@_xhr_ Yeah, just can't put it down and get back to zork. This is really good :)
@_xhr_ I still think it's absolutely insane that Apple is censoring Xscreensaver on their platform (iOS) because they're worried about the political thoughts people might have while watching some of the screensavers.
@swiley Wow, never heard of this.
I usually use the blank screensaver so I never cared about the graphical ones.
Server run by the main developers of the project 
It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!
@_xhr_ Kinda sounds like it needs systemd now?