Been slowly uploading to this YouTube playlist some short presentations about software rendering:
It's not specific to any particular programming language, with occasional short pseudo-code examples.
Currently it's mostly relatively beginner-level stuff, but in time I plan to have more advanced level content.
Check it our if you're interested:

A complementary playlist covers writing a real-time software ray-tracer from scratch in Odin:

Other languages would soon follow with their own playlists (C/C++, TypeScript and perhapse Python)