You probably want something like --test-ghci DevelMain.update
Running a command that writes to stdout asynchronously (like Yesod does, see https://github.com/ndmitchell/ghcid/issues/298) might cause problems (ghciwatch works by parsing the GHCi stdout), so we really want to redirect logs to a file and have ghciwatch read them from there (see #226).
See: https://github.com/MercuryTechnologies/ghciwatch/issues/143#issuecomment-2287999960
Related: https://github.com/MercuryTechnologies/ghciwatch/issues/226
From SyncLinear.com | DUX-2458