Gary Bernhardt of destroyallsoftware did a screencast episode about that: https://www.destroyallsoftware.com/screencasts/catalog/text-...

Note that it’s behind a paywall (his catalog is likely worth it for a curious hacker such as yourself).

Watch his “compiler from scratch” for free to get a sense of what his casts are like: https://www.destroyallsoftware.com/screencasts/catalog/a-com...