You, the programmer, should be comfortable reading specifications and RFCs in the normal course of your work. Get good at skimming large documents to find the info you need. Don't be afraid of them, they're very helpful!
And, by the way... I'll let you in on a little secret... if you're designing a new protocol or data format or something, did you know that ANYONE can write an RFC and the IETF will publish it?
@sir Yes, even this dude:
Fortunately he hasn't gotten beyond the draft stage yet.
A lonely little town in the wider world of the fediverse.