If you are on macOS, install Krill with Homebrew.
brew tap coffee-cup/krill brew install krill
krill --help to check its installed.
If you are on another platform, download the binary or build it from source.
Build it yourself with Haskell.
cdinto the directory.
stack setupto download the correct version of GHC.
stack install --local-bin-path=out/buildto build the application.
out/build/krillto wherever you need it to go.
krill with no arguments will launch a repl. In the repl you can
evaluate expressions. Repl specific commands are prefixed with a dot (
.help will show a list of available commands. Exit the repl with
You can run a file with