Root with Magisk, install Firefds Kit (Xposed module) to customize One UI Core, and uninstall bloatware via ADB. Much safer and almost as good.
Warning: This wipes all data on your phone. custom rom samsung a01
Users who have a spare A01 lying around and want to turn it into a dedicated media player, a lightweight browser device, or simply want to learn about Android modding. Root with Magisk, install Firefds Kit (Xposed module)
If you still want to try, your best bet is searching with Google Translate. Good luck, and always keep a copy of the stock firmware ready. Root with Magisk