At this point, the most realistic path is to use hardware that is already officially supported. Bringing up new hardware or maintaining outdated vendor kernels requires significant engineering time and resources. Board enablement is not a small task. It involves ongoing maintenance, testing, integration work, and long-term support. This represents real cost for the project while public project funding is not even on the level to cover response of such ideas. If you are expecting someone will just emerge and spent months of his private time in exchange for: constant insults, hate and complete absence of financial coverage for the time spent (things are never in perfect state to satisfy over-spoiled customers of someone else) ... adjust expectations.
We encourage users to choose hardware wisely - that already has active support and to contribute back to the project when possible. That is the only way we can avoid overextending limited resources, burnouts, collapse.
Stick to this board: https://www.armbian.com/bananapicm4io/ So far we have a person behind and a tiny budget, so our personal finances are not blown in 100%. Behind Orangepi CM4 we have nothing except random community work and with this it is not possible to plan any actions.