Nothing Phone (3a) / (3a) Pro (asteroids) for iode 7.9
iode-7.9-20261009-asteroids.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/OtherCustomROMS/iode/iode-7.9-20261009-asteroids.zip/download
Please see sources and install instructions including recovery here:
https://xdaforums.com/t/rom-unofficial-16-lineageos-23-2-nothing-phone-3a-asteroids.4795822/
Use it at your own risk!