js cli tool to run script with bun or fallback to node

[vjpr]

I am trying to migrate to Bun, but there are a few unsupported things, or things that break. I have tons of cli tools and libraries where some work and others don't.

I thought it would be nice to have a new cli tool called js, that would try to use bun, and if it didn't work, it would run it with node...and would take care of adding polyfills for Bun-specific apis.

It could remember what runtime to use based on some package.json config.

It could listen to error output and provide messages to help sort out problems, or warn about unsupported apis.

I would want to add it to my package.json scripts.

package.json

scripts: {
  start: "js ./src/index.ts"
}

Related

https://github.com/jhmaster2000/node-bun