Phoenix doesn’t depend on tailwind to work. If you’re still seeing errors you might have missed some of the handful of steps to remove the integration though. You can find a good summary of how to remove it here:

Maybe you could try installing the NPM version manually? The same problem exists with Dart Sass, there is no prebuilt binary available, but the NPM version works great (using it myself on FreeBSD).

Besides the new core_components – which I hope we get community provided alternatives for other frameworks in the future – this is hardly different to what needed to be done in the past for ripping out what phoenix used to use in favor of tailwindcss or any other tooling not being the phoenix provided one. Phoenix doesn’t want to be involved in what you use as your assets pipeline, but given generators need to provide some UI there needs to be some default. The changes in 1.7 actually improve on that, as now generators don’t become useless the moment you’re no longer using their default css framework or setup.