Command What it does: cabal build Builds project defined in .cabal cabal run Runs the executable specified cabal update Gets latest package list cabal init Creates a new .cabal file interactively nix develop Create a build shell to run cabal and ghc

🔑 Summary Table

Component	Role
GHC	Compiles Haskell code
Cabal	Build + dependency manager
Nix Flakes	Provides reproducible environment including GHC + Cabal

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One-Line Summary

**Flake

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A Monad means:

✔ You can take a value from a Box ✔ Apply a function that returns a Box again