stuff-I-learnt.md

• turtle canonicalize path is weird

• no awesome library for config files

• there are awesome libraries for JSON

• applicative style parsing

• Haskell string types are a pain

• Haskell newtypes in documentation make it hard to see what is actually happening

• debugging in haskell with trace

• when haskell works, it works beautifully

• design decision, make a variable of type IO a, that creates accessing it a side effect but simplifies life, or add an extra a -> ... parameter everywhere

getWarpDataPath :: IO FilePath

now, functions like

loadData that are responsible to load data can either be

1. loadData :: IO String and call getWarpDataPath internally, or the can be

2. loadData :: FilePath -> IO String and ask for the warpDataPath from the user

I think (2)

• Haskell needs a good library for box-drawing

• Having non-named positional arguments is weird in optparse-applicative

• do NOT mix user facing names eg: warp with application ideas eg: warpPoint

Uploading a package

• User account creation
• generating a tarball
• setting version numbers right
• changing git URL
• changing homepage
• changing description, synopsis
• README, Changelog
• travis
• Haskell cannot do cross compilation!