It helps a lot that you are working with server-style computing, where you can realistically do this. Things like audio and radio functions (eg bluetooth and w

It helps a lot that you are working with server-style computing, where you can realistically do this. Things like audio and radio functions (eg bluetooth and wifi) have algorithms that are very proprietary and often patent-encumbered. The hardware architectures for radios are also similarly weird and proprietary. That kind of thing would result in a binary blob (at best) in a fully-open-source environment. Hot take: I don't mind if Dolby or a wifi chipset vendor hides their software from me as long as it has very strict definitions for its role and a very narrow I/O interface.