Google Pixel Tablet (tangorpro) for /e/OS-a15 3.0.x
e-3.0.4-a15-20250709-UNOFFICIAL-tangorpro.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/OtherSmartphones/e-3.0.4-a15-20250709-UNOFFICIAL-tangorpro.zip/download
This device is officially supported by LineageOS.
Please see sources and install instructions including recovery here:
https://wiki.lineageos.org/devices/tangorpro/