I've already setup the IOHK binary cache in /etc/nix/nix.conf, yet when I build PPP lecture #2 I have to build many modules.

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whereas it seems Lars only has to process one.

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Does anyone know why this might be happening?


That should happen only the first time, when you make the cabal repl because it's building all dependencies.

After that, every cabal repl should look like Lars screen.


Not sure how well it works yet, but the latest GHC release does improve on compilation time and memory footprint.


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