Code splitting is supported just fine for ESM bundles[1] (and there is little reason to use other formats nowadays), CSS handling works ok as well. I have been

Code splitting is supported just fine for ESM bundles[1] (and there is little reason to use other formats nowadays), CSS handling works ok as well. I have been using ESBuild since forever and the only instability that I experienced was around sourcemap generation early on. [1] https://esbuild.github.io/api/#splitting https://esbuild.github.io/api/#splitting