After scouring XDA, Telegram, 4PDA, and GitHub:
: This is the primary hub for developers sharing TWRP recovery builds and specific GSI installation guides. samsung a01 core custom rom portable
I eventually sold my flagship. I realized I didn't need to edit 4K video on the bus. I needed a phone that turned on when I pressed the button, played music, sent texts, and fit in the tiny pocket of my jeans. Review: Custom ROM Experience — Samsung Galaxy A01
After scouring XDA Developers, Telegram groups, and 4pda forums, these are the most stable portable builds available in 2024-2025. and 4pda forums