Crystal Ruby
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Latest version Latest version

  • A modern command line job processor written in Crystal 🚀
  • Can execute jobs concurrently. 🚀
  • Can be substitute for make command. 🚀


Arch Linux

Use your favourite AUR helper.
Package name: neph-git


You can install Neph with brew.

$ brew tap tbrand/homebrew-neph
$ brew install neph


Build dependencies:

  • crystal and shards for building the binary
  • go-md2man for generating the man page

It needs libyaml to be installed.

If you have a previous version of neph installed:

$ git clone
$ cd neph
$ neph           # man page will be at neph.1, binary will be at bin/neph

If you don't have a previous version of neph installed:

$ git clone
$ cd neph
$ shards build    # Now executable binary is located at bin/neph
$ bin/neph man    # Generate man page. It will be located at neph.1


All features for neph.yaml is written in sample/neph.yaml. So please refer for the details.

Wiki is also maintained as a document. Here is a full features.

Use cases

Neph is used in which_is_the_fastest.
The build time is reduced from 102[sec] to 33[sec].
The neph.yaml is here.


  1. Fork it ( )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request


  • tbrand Taichiro Suzuki - creator, maintainer
  • notramo Márton Szabó - maintainer