This repo uses Bun, but other tools such as npm and yarn should work fine.
When you've made changes to the code you should always compile and format it. You do this by running bun format && bun lint --fix && bun run build && bun package. Replace bun with your desired tool (although bun is highly recommended).
Submit your changes in a PR and add a reviewer. If you're unsure who to add, then you can add @juhlinus. Dont forget to make sure that all tests are passing locally, and that you've packaged the code properly (see above), before you submit a PR.