I’ve used sandboxes for a long time and so do other languages. But let’s see what’s wrong with v2 first: cabal install --lib is a re-introduction of cabal hell it does not support ad-hoc development easily, unless you learn about store-dir learn about ghc environment files learn why cabal and ghc don’t “see” the same package lists learn about nix-store/CAS learn all the hidden v2 switches and understand how to combine them It is so bad UX that, well, compiler/language developers h...
