Distribution via npm

[minoki]

There should be an easy way for a npm user to install this tool.

Since this tool is written in Haskell, this is not trivial. Some choices are:

• Binary distribution
• Compile to JavaScript with GHCJS or something

As a note, purescript npm package uses postinstall script to download the binary:

• purescript npm package
• install-purescript-cli: The script that does the job of actually downloading the binary.

[stereobooster]

you can also go with flow-bin approach https://github.com/flowtype/flow-bin/blob/master/Makefile.
Flow compiles all the binaries, uploads them to github releases and flow-bin downloads binaries and bundles them in npm packages

[zmrocze]

#11 might be useful, might not