So i have two PCs from the 2010s. And i want to Game some lightweicht Games in them, so i used Arch for a while. But i wanted Something small. Like veeeery small. So i found about Alpine. Now ist alpine linux + i3 DE a good choice for 8gb of ram?

Mindblowing ram usage.(includes autotiling written in a small
Posix script)
No hate am 14

Context: I am running Alpine Linux v3.14.3 on iSH on iOS.

I am trying to run a command line program that works on all of my other linux devices. I tracked down the issue: the program works on my other devices because they are running python 3.12. But when I installed python3 on this Alpine shell, I got python 3.9.

My latest attempt to upgrade:

apk-add python3.12
ERROR: unable to select packages:
python 3.12 (no such package):
  required by: world[python3.12]

I found out that I need to add the community repositories. This is where I get stuck.

# This file contains pinned repositories managed by iSH. If the /ish directory exists, iSH uses the metadata stored in it to keep this file up to date (by overwriting the contents on boot.)
http://apk.ish.app/v3.14-2023-05-19/main
http://apk.ish.app/v3.14-2023-05-19/community

This looks quite different (understandably, since I'm running iSH and not on an actual computer) from what I'm finding when I search.

Here: https://www.cyberciti.biz/faq/alpine-linux-etc-apk-repositories-repositories-file/

and here: https://krython.com/post/adding-alpine-linux-community-repository

For example.

Do I just add the lines they suggest to the file? Do I do something else?

I would ask iSH folks but the subreddit is dead and the blog hasn't been updated in years.

Been searching this shit for days for no avail. Any help guys?