- [dump the ast to disk via `mmap()`](https://www.reddit.com/r/ProgrammingLanguages/comments/1hwfzj9/comment/m69kvh7/) - [relative source location](https://www.reddit.com/r/ProgrammingLanguages/comments/1mv18u6/comment/n9qor0p/) - [concrete syntax trees](https://matklad.github.io/2023/05/21/resilient-ll-parsing-tutorial.html#:~:text=We%20actually%20don%E2%80%99t%20want%20to%20use%20an%20abstract%20syntax%20tree%2C%20and%20need%20a%20concrete%20one)
