This is pretty cool. If I wanted to compile some old Haskell app, that was built with GHCJS, to WebAssembly should I use this unreleased branch of GHC or go for

This is pretty cool. If I wanted to compile some old Haskell app, that was built with GHCJS, to WebAssembly should I use this unreleased branch of GHC or go for (seemingly) batteries included Asterius?