My impression is that PureScript aims to not be configurable. For example, the compiler does not allow you to disable warnings. Other tools, like `psa`, can do

My impression is that PureScript aims to not be configurable. For example, the compiler does not allow you to disable warnings. Other tools, like `psa`, can do that, but the base language is always the same. Specifically related to language extensions, there is this wiki page: https://github.com/purescript/purescript/wiki/Differences-from-Haskell/22c1c11a49fef2190fd8dc787f42123a0227d3ea#extensions https://github.com/purescript/purescript/wiki/Differences-fr... > The PureScript compiler does not support GHC-like language extensions.