This app uses hpack, so you will need to run hpack at least once to generate a cabal file.
https://samtay.github.io/posts/introduction-to-brick https://github.com/samtay/snake/blob/master/src/UI.hs https://github.com/jtdaugherty/brick/blob/master/docs/guide.rst#introduction https://github.com/jtdaugherty/brick/blob/master/programs/DialogDemo.hs