Amazon Fire HD 8 and HD 10 for /e/OS-T-3.1.1
e-3.1.1-t-20250904-UNOFFICIAL-karnak.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/OtherSmartphones/e-3.1.1-t-20250904-UNOFFICIAL-karnak.zip/download
Please see sources and install instructions including recovery here:
https://xdaforums.com/t/rom-unlocked-karnak-lineage-20-0-3-january-2023.4533639/
Use it at your own risk!
Please support the developer(s)!