Let's Build a Hygienic Macro Expander

"Let's Build a Hygienic Macro Expander" by Matthew Flatt Strange Loop Strange Loop

https://www.youtube.com/watch?v=Or_yKiI3Ha4

scope sets are the most important advanced in programming language theory since types.

>>2, 3
this. I'm beginner when it comes to lithp and I'm not yet good at meat (not to mention all that shit from Let Over Lambda) but some of the most useful (when it comes to boilerplate reduction at least) macros I've written were intentionally unhygienic.