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

ChromeOS has two update planes: the OS itself auto-updates silently in the background (staged, A/B image swap, until the device's AUE date), and apps update through their channels — Play Store Android apps, PWAs, and Crostini Linux apt. Legacy Chrome Apps are being phased out (2025–2028) in favor of PWAs.

Store/Mechanism	Manual	Automatic	Auto/Internet mechanism	Maintainer	URL	License
ChromeOS OS auto-update	(can defer)	✓	Silent staged A/B image download+swap over the Internet until Auto Update Expiration (AUE)	Google	https://support.google.com/chromebook/answer/177889	Proprietary (Chromium OSS core)
Play Store (Android apps)	✓	✓	Same as Android Play background updates	Google	https://play.google.com/	Proprietary
PWAs / web apps	✓ (reinstall)	✓ (content)	Service-worker/live web content refresh; not centrally version-managed	website owner	https://web.dev/progressive-web-apps/	varies
Linux (Crostini) apt	✓	—	`apt update && apt upgrade` inside the Debian VM	Debian + Google	https://chromeos.dev/en/linux	GPL/varies

WeKan applicability

The cleanest fit of any platform here — install WeKan directly as a PWA; it then tracks the live server. Electron desktop auto-update does not apply.