Linux für Mobilgeräte, Smartphone opensource OS

https://de.wikipedia.org/wiki/Kategorie:Linux-Distribution_f%C3%BCr_Mobilger%C3%A4te

https://wiki.postmarketos.org/wiki/Devices

LineageOS – LineageOS Android Distribution

https://linmob.net

https://mobian-project.org/

https://en.wikipedia.org/wiki//e/_(operating_system)

PureOS

DivestOS

iodéOS

https://wikiless.org/wiki/Linux_for_mobile_devices

https://www.sustaphones.com/

https://de.wikipedia.org/wiki/PinePhone#Software

CyanogenMod | Android Community Operating System 

Home Page

https://www.wired.com/story/e-os-review/

https://de.wikipedia.org/wiki/GrapheneOS

Linux For The Paranoid Does The Work For You | Hackaday 

The FreeBSD Project 

https://distrowatch.com/

Sailfish OS fourth generation

SailfishOS

OniroOS

https://en.wikipedia.org/wiki/OpenHarmony

Android, iOS und Co. – Betriebssysteme für Smartphones im Vergleich