Comment by OneDeuxTriSeiGo

NGL that's kind of been the appeal of atproto. Once you get into the weeds you start learning about all the many many many moving parts but at its face 99% of it is:

Hey here's some schema files we call lexicons. Every single interaction with the network is a JSON RPC call to the same domain (whatever your PDS is) with the lexicon's path appended to it.

The fact that it's trivial to hack on atproto via the devtools console or a curl prompt makes things so much more fun to play with.