We now use it to build Yarn, and it's been working very well. Still some rough edges that prevent us from adopting it at work (like the lack of dynamic imports

We now use it to build Yarn, and it's been working very well. Still some rough edges that prevent us from adopting it at work (like the lack of dynamic imports when the import expression references variables), but I'm slowly making progress in implementing workarounds for that through loaders, and the first results are encouraging. At its worst, with a Webpack/Esbuild hybrid approach, we get at least 2x better perfs.