I'm aware there's a script that needs to be called manually when converting from SysVinit to OpenRC in Devuan, populating the various levels properly, but I can't recall said script. You should be able to trace it down following the dependency chain in apt.

HTH!

First error in step 3: you need to log in as root, not a regular user.

Chances are Cups already has the drivers as it only needs the ppd files. Try installing the printer in step 3 as root first, if that fails we go from there.

After the latest upgrade to the current stable the issue is resolved and previously blacked-out video streams can be viewed normally in VLC.

That's why it's called testing Don't use testing if you can't fix it.

I have now removed both keyring archives mentioned in my OP, but left all others in that directory. So far, apt/aptitude/synaptic is not complaining (yes, also updated Devuan Stable on my system)

If he really wants it, he can buy one himself

Intel B580 is a decent card for the price.

I'm using the partitioning tool of the installer (which under the hood is gparted anyway ) to manually set partitions for /, /boot, /usr, /etc, /var, /tmp and /home. By limiting the size of these directories any rogue process triggered to fill up as much space as possible cannot make the system unstable or even unbootable.

The answer is there, first post, several times even:

apt --fix-broken install

Here's the Brother support site:
https://support.brother.com/g/b/product … content=dl

Select your region, model, follow instructions and you should be able to get a download link to the installer. That's just a script selecting the correct drivers for your device and installing them.

FIY: my last 3 printers (actually MFC units) were all Brother products due to their excellent Linux support. Current machine: MFC-J5740DW (no WiFi configured, so no access from outside )

Nobody ever got fired for buying a Dell. Same goes for HP, IBM and Lenovo.

Despite having my daily driver PC on AMD hardware for the past 25 yrs, I'd suggest you'd hunt down an older workstation (Intel 10th, 11th or 12th gen CPU) for cheap, maximize RAM, add 2-4 HDD's for long term storage in RAID 1, 5 or 6, a 1TB NVMe SSD for the OS and any VM's you'd like to run.

As for the OS: Although Devuan can do all the tasks you planned for, I'd suggest being practical and consider specific NAS-OS's like HexOS, TrueNAS Scale, UnRAID or ProxMox instead. Yes, they use systemd and as much as I despise it, realistically that's not going away anytime soon. As your only online portal for your community, downtime due to having to tinker with a manual Devuan setup isn't really acceptable. You'd also need to consider online risks: you may not consider your community a target, online criminals will have a field day hacking your machine and turning it to making them money whichever way they want. Devuan simply doesn't have a GUI tool that makes configuring it suitable for online use, like HexOS is for TrueNAS. The project lacks the resources and realistically, it's not gonna happen anytime soon, even if someone steps up developing the required functionality for it today.