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Discussion on: How to define JSON instances quickly

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Fabio Luz

Nice article. Could you write an article explaining how to use compilation options like, -O0, -O1 and -O3 as well as things like -j1 -j2, etc. It seems there are a lot of hidden tricks in these compilation options and not much documentation about it on the internet.

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Taylor Fausak Author

I think the GHC user's guide covers this pretty well, both in terms of how to use options and what the options do. I don't often see it linked as a resource, so check it out! downloads.haskell.org/~ghc/8.10.1/...