before even thinking about arranging a CSC board bring up pull request to armbian, I would be pleased to know if it sensible to do that for a TV Box which is not sold anymore but still quite powerful because of its rk3288 SoC.
I made my own fork of armbian (see here). I tried to do things the most tidy way, following the best practices learnt from the documentation. The box has very good support now, but requires some initial setup to clean the eMMC.
Also I made some