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Contact: Philipp Hausmann

Homepage: http://wiki.portal.chalmers.se/agda/pmwiki.php

Required skill level: Advanced


Contact: Vincent Hanquez

Homepage: https://github.com/haskell-crypto/cryptonite

Required skill level: Advanced

Grenoble Haskell Club

Contact: José-Paul Dominguez

Required skill level: Beginner


Contact: Jasper Van der Jeugt

Homepage: http://jaspervdj.be/hakyll

Required skill level: Beginner

Haskell IDE Engine

Contact: Moritz Kiefer

Homepage: https://github.com/haskell/haskell-ide-engine


Contact: Léonard Monnier

Homepage: https://github.com/momomimachli/Hedsql

Required skill level: Beginner

By order of difficulty, the following things could be done:

Data.Text support

Level: beginner

Description: use Data.Text instead of String

Injection tests

Level: beginner in Haskell, solid SQL knowledge

Description: ensure that the library is dealing correctly against SQL injection.

Database tests

Level: beginner/intermediate

Description: write the integration tests against real databases (SqLite, PostgreSQL and MariaDB).

Add new SQL functionalities

Level: intermediate Description:

Add support to additional SQL functions such as:

  • ALTER statements
  • types (such as time-stamp, date, etc.)
  • various SQL vendor functions such as "sqlite3_last_insert_rowid()" for example.

It implies to work through the full stack:

  • create a new function/datatype in the AST
  • create a new constructor function to generate the AST
  • create new parser(s) function(s) to generate the SQL code.


Level: expert

Description: the library is currently using a State Monad for writing SELECT queries, but maybe there is a better way.


Work on the list of Opaleye enhancements

Contact: Tom Ellis

Homepage: https://hackage.haskell.org/package/opaleye

Required skill level: Advanced

OpenCV 3.1 Haskell binding

Homepage: https://github.com/LumiGuide/haskell-opencv

Contact: Bas van Dijk

Required skill level: Expert

Shaking up GHC

Contact: Andrey Mokhov

Homepage: https://github.com/snowleopard/hadrian

Required skill level: Advanced


Contact: Alexander Thiemann

Homepage: https://www.spock.li

Required skill level: Advanced


Contact: Ian-Woo Kim

Homepage: http://ianwookim.org/hoodle

Required skill level: Advanced

Hoodle is a pen notetaking program written almost entirely in Haskell. It's one of rather rare GUI programs in Haskell world. Recently, I upgraded hoodle to use Gtk3, and therefore much modernized and easier to be ported to other platform natively. In this hackathon, I would like to stabilize this Gtk3 port and want to try to port the program to many different platform (especially targetting OS X and hopefully windows), and modernize tablet input part to use gtk3 counterpart, not use custom X11 C FFI. I also want to add some shiny new features if possible during the hackathon.