About
[A]dvanced [XP]erience [OS]
AXP.OS is a more private and secure mobile operating system that is based on AOSP & LineageOS and has emerged from the well-known but discontinued operating system DivestOS.
In particular AXP.OS aims to support devices that would otherwise no longer receive any (Android/Kernel) updates and are therefore easily vulnerable. All this is based on a best-effort principle, also because outdated devices no longer receive updates for proprietary firmware and are therefore insecure by definition.
AXP.OS at least tries to close all the gaps that are possible.
In addition to this main goal, this project attempts to strike a balance between a
privacy and
security-oriented
yet usable
operating system - not least for advanced* users.
*i.e. including full control over your own device - if explicitly desired.
For this reason, there are so-called flavors, namely “Slim” and “Pro”, from which users can choose based on their personal requirements.
For more details checkout the
Features page
The project name
- full project name:
[A]dvanced [XP]erience [OS],The AXP.OS Project - shortened:
AXP.OS,AXP-OS(when a dot is not allowed),AOS - NOT a valid short name: AOSP
The OS
No, this is not a ROM, a term often used for hacky adjustments of existing OS builds.
AXP.OS is a fully-fledged operating system in its own right, i.e. an Operating System.
- based on*: LineageOS which itself is based on AOSP
- using massively patches from: GrapheneOS
- using several patches from: CalyxOS
- using massively patches from: DivestOS by Divested Computing Group
- on top of this: massive enhancements and additions by the AXP.OS project
- details about the above can be found at the Technical Details page
*) since January 2025 due to the EOL of DivestOS
The Credits
Besides the above mentioned projects AXP.OS appreciates the work of the whole Open Source community.
In order to keep this page readable all credits can be found here.
Project Milestones
Now
2026-01
- celebrating 1 year of continuing the full DivestOS approach / Slim flavor 🎉
- 1 year of AOSmium
- increased supported device count to 17 (based on: Android 10, 11, 13, 15)
- a lot of automation added, running in the background, keeping mirrors active, building APK’s and more
- completed bringup automation for new devices (should decrease bringup time)
- challenges solved related to the new ASB patch handling
- completing Android 15 support
- EOL for Android 9 + 10 ASB patching (ASB backporting to these versions is becoming increasingly impossible), kernel updates are not affected
- growing community & contributions (testers) :) and that is really cool!
2025-09
- Some news about Google’s ASB patch handling
- Due to this AXP.OS changes its build id to a new ASB independent format
- CalyxOS paused all development due to Google’s changes and internal challenges
2025-04
- Google decided to change its ASB patch handling ASB patch handling
2025-02
- new website using HUGO running hextra theme
- shifting device guides from Github to https://axpos.org basing on templates to ease maintenance and adding new devices
- CVE Kernel patcher adapted and automated! Read all about the journey here
- adapted/replaced/optimized/removed almost all dependencies we had with DivestOS
2025-01
- Shifting (or removing) all major DivestOS dependencies to own implementations
- introduced AXP.OS flavors, providing a Slim version mainly for DivestOS “refugees”
- introduced AOSmium the AXP.OS Browser + WebView
- fully adapting ASB patching (Android sources) to own automation processes
2024-12-23
- The EOL of DivestOS, the base for AXP.OS up to this time.
2024-11
- finalized Reproducible builds
2024-06
- introduced Reproducible builds
2023-03-31
- Initial project start / first public(!) appearance