---
title: hledger Contributor List and Agreement
---
hledger Contributor List and Agreement
======================================

hledger Contributors
--------------------
hledger is brought to you by:

- Simon Michael - lead developer, project manager, general dogsbody
- Sergey Astanin - utf8 support
- Nick Ingolia - parser improvements
- Roman Cheplyaka - "chart" command, "add" command improvements
- Michael Snoyman - some additions to the Yesod web interface

Developers who have not yet signed the contributor agreement:

- Tim Docker - parser improvements
- Marko Kocić - hlint cleanup
- Oliver Braun - GHC 6.12 compatibility
- Gwern Branwen - cleanups

Also:

- John Wiegley - created the original ledger program

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hledger Contributor Agreement
-----------------------------
This is the official contributor agreement (v1) and contributor list
for the hledger project. If you have contributed non-trivial code
changes to hledger, please sign this, to help ensure:

1. that there is a clear legal status and audit trail for the project

2. that you get proper credit for your work

3. that we are able to remain license-compatible with related software
   by updating to newer versions of our license when appropriate
   (eg GPLv2 -> GPLv3)

To "sign", read the conditions below and then send a darcs patch to
`this file`_  adding your name to the Contributor List above.  By so
doing you promise that all of your commits to hledger:

- are free of patent violations or copyright violations, to the best of
  your knowledge

- are released under the hledger project's license_; or are released
  under another compatible license (in which case this must be clearly
  noted); or are public domain

- may be relicensed under official future versions of their license 
  at the discretion of the project leader

We don't currently gather paper signatures, but this is a good start.
Feel free to update your entry as your contributions grow!


.. _license:   http://joyful.com/repos/hledger/LICENSE
.. _this file: http://joyful.com//darcsweb/darcsweb.cgi?r=hledger;a=filehistory;f=/CONTRIBUTORS