Install yesod by entering the following commands in the terminal:
sudo apt update sudo apt install yesod
Description:
Helper executables for the Haskell web framework Yesod
Provides scaffolding, devel server, and some simple code generation helpers (yesod, yesod-ar-wrapper, yesod-ld-wrapper, yesod-ghc-wrapper).
Homepage: http://www.yesodweb.com/
Version: 1.5.2.6-1
Section: universe/haskell