Thanks, andyprough ! I wish I knew it sooner! I should have tried antiX at first option to the oldest machine, with Sempro CPU and 3 GB DDR2 RAM (do you believe that system was meant to run "Windows 10" before? And with only 1 GB of RAM ?!..). I will download one of those antiX ISOs for tests later, but I'm afraid I won't install any of them right now. The machines running with MX Linux are functional (although some minor cons...) and I'm afraid it isn't worth to replace the whole OS just to try runit as init system (it took me two days configuring the oldest machine, which I'll donate to a 8 years old nephew...). However, if antiX had a runit liveUSB version, I could give a try!andyprough wrote: ↑Mon Aug 31, 2020 10:49 am (...) If you have older machines with fewer resources, you should try antiX which already has runit installation ISO's on this page: https://mirrors.evowise.com/mxlinux-iso ... it-buster/
antiX is a sister distro to MX, and has many of the same tools that you have gotten used to using in MX, but it is more minimalist and works well on lower resourced and older equipment. The fact that antiX has and supports runit already should make this an easy decision.
By the way, which Desktop environment comes as default with antiX runit ISOs ? XFCE, I suppose.. That's ok to me. And, probably, the only feasible option for older machines. But I wish there was option for Plasma 5, or something else...