JSON is already 20 years old. I guess things can’t stay the way they are forever (and 20 years in the IT world is a lot).
However, it seems protobuffers (or alternatives like flatbuffers, cap'n proto) are still niches compared to JSON.
However I have yet to convince anyone at an org that isn't already using them that they will change things for the better.
Schema once, code everywhere. It is really nice.
Have you seen Buf? https://buf.build/
No, thanks for sharing! I will have a look!