While updating my system the graphical session crashed and after reboot the kernel was missing (reminder that you should update on tty). Trying to fix that from a live-system, mounting system nvme partition to mnt, there's now /mnt/@ @cache @log, while your usual root folders are in @, log fikes @log and so on. Filesystem is btrfs, no subvolumes, if that matters.

So why is this? And can i just mount boot to /mnt/@/boot? Do break something, if i move /mnt/@ content to /mnt?

Thought i share it, since it came in handy lots as a GoG enjoyer.

steamworkshop_dl() {
    steamcmd +login anonymous +workshop_download_item "$1" "$2" validate +quit
    mv -v "<path to your temp Steam folder>/steamapps/workshop/content/"$1"/"$2" "$PWD"/"$3"
}

Purpose: downloading Steam Workshop mod to $PWD with minimal work.

Usage: steamworkshop_dl [game-id] [mod-id] [name]

game-id is in the URL of the main workshop page, mod-id is in the URL of the mod

To make usage simpler, create an alias with the game-id:

alias stdl='steamworkshop_dl <game-id>'
stdl <mod-id> 'that mod'

Needs steamcmd. If download fails, try username and password instead of 'anonymous'.

I have this in my /etc/sysctl.d/99-oomkiller.conf

# "Iron Reserve" that can not be consumed by rogue tasks
vm.admin_reserve_kbytes = 1024000

# 0 = extensive heuristic scan of joblist (system doesn't have the power for that, when oomkiller is needed). Can shoot the wrong task
# 1 or more = kills the first task with condition "out of memory"
vm.oom_kill_allocating_task = 1

Yet somehow i still got in a livelock. So i remembered nohang and found in it's readme about mgrlu. I found some documentation to it but it only provides runtime examples (already enabled but set to 0 on Artix, /sys/kernel/mm/lru_gen/min_ttl_ms should be 1000).

How should i set this permanently, sysctl doesn't accept min_ttl_ms. Via kernel, via local.d script (non-systemd, dinit)?

Why doesn't my config above work?

Any recommendation to runtime-services? (earlyoom for my server i guess)