Use nushell and `build/createPatchedBundle.nu` in the root to create a bundle.js.
## extra.js
extra.js is a quick attempt to implement a new feature for Pianoverse with the internal APIs, which is possible, however hard. It adds a simple button for rules and a new modal. It **requires the internal patch** and for it to be added in index.html.
## Sounds
Use the `build/downloadSounds.nu` nushell script to download all sounds.