you need to be totally autistic to believe that Chinese vendors are going to share anything meaningful with you. they don't hate you, they want their paying customers to be happy, but the brutal competitions in China doesn't allow them to be open in any sense. For products like RISC-V processors and MCUs, the moat is extremely low, being open leads to quick death. It is not about how much stuff they share with you as paying customer, it is about how much they are willing to share with their competitors when there are hundreds of companies trying everything to survive.
as a developer, you just need to ask yourself a dead simple question - how such risc-v platforms are going to be more open than raspberry pi.
