How does importmaps-rails replace yarn correctly in rails 8?

--download option has been remove. Pinning should just always download by dhh · Pull Request #217 · rails/importmap-rails · GitHub

Now I use esbuild to handle some dependencies.

I am considering returning to bundling because the js ecosystem is still built around builders. To reach no-build, you need to reduce dependencies as much as possible, like the 37signals project.