Not as USB but maybe this would work for you?

1. it partitions same things into separate locations One library is here, another one is here, some older version there, which one should this binary load? Where should I point the -L to? Of course, compiling things completely from scratch is unmaintainable anyway (that’s why PKGBUILD was another big point - it’s easy to create your own AUR packages that will get pacman-level maintainability), but sometimes you want to check if that new patch solves your issue
2. if distro does not care, the packages will have different prefixes I can see some use of /opt. But it should be my decision if I want something installed in /opt/bin or /usr/local/bin. In distros that did not enforce where things are put in, it was all over the place. But to be fair, to me, even bin/sbin separation is bs

Unlike Linux, these BSDs have a clear separation of OS from these packages. OS files and data are stored in places like /bin and /etc, while user installed packages get installed to /usr/local/bin and /usr/local/etc.

What do you consider the OS? Is firefox a part of OS? Is office part of OS?

On FreeBSD, the freebsd-update command is used for upgrading the OS and the pkg command is used for managing user packages. On OpenBSD, the syspatch command is used for upgrading the OS and the pkg_* commands are used for managing user packages.

Personally, the ditching of /usr/local mess was one of the selling points of Arch for me, but in a way you could achieve this in Arch. Create a secondary pacman config with RootDir set to /usr/local and alias pacman --config /etc/pacman_local.conf as pkg_pacman

I think it’s a messy idea, you will be getting conflicts on files already present in the system. You’ve been warned ;)

With that out of the way, I guess just download the image and start from https://wiki.archlinux.org/title/Installation_guide#Installation

Yes, but that was in the OP. Maybe normal disk is not feasible for some reason

no graphics card whatsoever

computer can play h.265 and equivalent without troubles, provided video file is no higher than 1080 p.

Computer can play av1 files no higher than 1080 p only if I shut every other application down. If for example I run a browser and an av1 file with either mpv or vlc, system shuts down.

Can I put all that memory to use and avoid overloading the cpu?

Most of the answers seem to focus on the main problem, but your question got me thinking.
Since you are not getting shutdowns with lower qualities, maybe you could use RAM to play those videos.
Set up tmpfs. Before you start all the other things, use ffmpeg to recode the video to something without any compression, maybe tell it to not work too fast (like work on one frame at a time), and put the thing on that tmpfs. Maybe then playing this new file would be less demanding. The key would be to not force it to provide 30fps of encoded video

Although… Are you sure all this RAM is fine? Maybe it shuts down on more demanding videos because with those the RAM usage raises to the faulty part?

$ sh
sh-5.2$ echo dfgsdfgfd |& tee /tmp/t
dfgsdfgfd
sh-5.2$ cat /tmp/t
dfgsdfgfd
sh-5.2$

¯_(ツ)_/¯

True

But nowadays /bin/sh is often just a link to bash

https://www.man7.org/linux/man-pages/man1/bash.1.html

Pipelines A pipeline is a sequence of one or more commands separated by one of the control operators | or |&. The format for a pipeline is:

[time [-p]] [ ! ] command1 [ [|⎪|&] command2 … ]

(…) If |& is used, command1’s standard error, in addition to its standard output, is connected to command2’s standard input through the pipe; it is shorthand for 2>&1 |. This implicit redirection of the standard error to the standard output is performed after any redirections specified by command1.

For 2>&1 to work don’t we need to be using some shell anyway?

IMO |& tee dirlist is easier to manage

Rules per se, I guess, no. But I feel this is a little bit ill-placed. Look at other posts in this community, it’s rather about open-source news and discussion than specific support for an app

I guess you might have better chances in some Android community, if those operate similarly to the Linux ones

Why are you posting this in here?

It’s too good ;) :D

Just to be sure: this is a script, right? Sitting somewhere? Not just a command put directly in the config?

I think you might have to ask in https://github.com/lutris/lutris/issues I’m out of ideas

Do you have space in the path of your script?

Is it executable?

I’ve been using ZArchiver and Ghost Commander and haven’t noticed a big difference vs Linux. It might depend on device’s hardware too

Looking at the repo I am not sure what this is. OS for TVs? App to watch television channels on a phone?

Wine can work in a pinch but I wouldn’t rely on it

In this case I would say the other way round. Proton works in a container, so getting to the sound interface for example might be harder than just using Wine