Pretty straight forward, I took OneUI 3.1 firmware, debloated it and added a few features. But I mean very FEW features. Samsung didn't really disable a lot of things on the A52, I'm actually impressed.
I didn't really put a lot of effort into this, I don't think I'll keep it up to date because I am a very lazy person but who knows, stuff happens.
I will include the stock kernel for the newest security patches in the thread, because Samsung obviously tinkers with it and may include some improvements brought by Samsung themselves. Doubt you'll see custom kernels based on it until Samsung releases the source code (which sometimes takes up to 2 weeks).
Your warranty is now void.
* We are not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about flashing this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at us for messing up your device, we will laugh at you. HARD!
Based on October 2021 update (A525FXXU4AUI3)
Edge Lighting fully enabled
Smart View fixed
S21 default wallpapers
Higher audio quality (Disabled DRC, which deeply compresses audio)
Disabled Samsung Marketing
High-End Animations (though I don't think this makes a lot of difference)
Enhanced pocessing (this also probably doesn't do anything, but give it a try)
CSC Features like:
Stock call recording
Speed meter on statusbar
Spam call blocker
Multiple users in settings
Secure flag disabled
Probably more I can't remember...
I decided to show my work so to speak on GitHub. You can see the list of all the apps I removed and all the lines that were added to camera and floating features. Feel free to take a look and make pull requests if you want me to add something on potential future releases.
Wait a few minutes, pay attention to the screen after 5 minutes, because it will ask you if you want to delete extra apps
(Recommended) Wipe data so you can begin with a clean installation
When installation is finished, just reboot to system
Total installation time can take up to 10 minutes
Extract RayOS ROM (in .xz format) with an unzip program and copy to internal or external SD card. (Warning: Do this step before even booting to custom recovery. This super img is about 6 GB of size and I believe custom recoveries have a size limit on files you can copy over MTP.)
So uh... is anybody even using this besides me? LOL.
I haven't updated it to latest security patch because well, there really isn't anything added other than "the security of your device has been improved".
I think I'll wait until something significant gets added.