EDGE TX

https://edgetx.org/

https://github.com/EdgeTX/edgetx

https://github.com/EdgeTX/edgetx-sdcard/releases

https://github.com/EdgeTX/edgetx.github.io/wiki/EdgeTX-Installation-Guide

Build your own

https://github.com/EdgeTX/edgetx/wiki/Build-Instructions-under-Ubuntu-20.04

2.6

https://github.com/EdgeTX/edgetx/releases/tag/v2.6.0