# \#rumble

**URL:** https://racket.discourse.group/tag/rumble/187.md

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## [How do I rebuild the Racket repository with changes to the Rumble layer?](https://racket.discourse.group/t/how-do-i-rebuild-the-racket-repository-with-changes-to-the-rumble-layer/2297)

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**Author:** [@MartianMoorGrove](https://racket.discourse.group/u/MartianMoorGrove)\
**Replies:** 0\
**Last updated:** [September 8, 2023, 6:49pm UTC](https://racket.discourse.group/t/how-do-i-rebuild-the-racket-repository-with-changes-to-the-rumble-layer/2297 "2023-09-08T18:49:04Z")

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Running make at the top-level directory isn't enough, and I'm not finding much Rumble-specific guidance in the README files. My change is a potential performance improvement in hash.ss that I'd like to try.