You won't find it in any of the academic literature because it's not an academic project: https://bablr.org/

BABLR is just the extensible streaming parser framework, but it has a few key things going for it: 1. Gap support like Hazel has, but for any language it can parse 2. Streaming parse results, which make multi-pass stream transformation easy 3. The ability to consolidate and take over the work currently done by Treesitter, LSP, Git, and the IDE itself.

I assume he's referring to the massive commercial success of Holy-C and TempleOS.

(It's the only programming language with inline graphics I can think of, at least, your average esoteric visual language tend to not mix with normal code.)