Dev: postmarketOS install & update platforms (manual vs automatic, like Snap)

postmarketOS is a true rolling Alpine Linux system: apps and OS are the same apk package stream (no separate app store). Updates are user-run CLI (apk upgrade) or via a desktop software center. As of v25.12 it uses apk v3 (downloads all packages before installing, so a flaky connection can't break the system).

Store/Mechanism	Manual	Automatic	Auto/Internet mechanism	Maintainer	URL	License
Alpine `apk` (apk-tools v3)	✓	— (user/cron)	`apk upgrade` fetches from Alpine/pmOS repos; download-then-install	postmarketOS / Alpine	https://postmarketos.org/	GPL-2.0
Software center (GNOME Software / Discover)	✓	notifies	GUI front-end over apk repos	desktop projects	https://wiki.alpinelinux.org/wiki/Alpine_Package_Keeper	GPL/varies

WeKan applicability

It's mainline Linux — run WeKan in the browser as a PWA, or self-host the server; apps update via apk (not the WeKan client). See Linux.md.