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Haskell Hackaton in Cambridge, UK, August 12-14, 2011


Come and spend a weekend in Cambridge hacking Haskell code in great surroundings with fantastic company! Haskell Hackathons are a tradition where everyone is welcome; we get together, work on projects with others or just do your own thing, the overall goal being to improve the Haskell ecosystem.

CamHac will be held from 12-14 August 2011, at Homerton College in Cambridge. As with previous Hackathons, all are welcome -- you do not have to be a Haskell guru. All you need is a basic knowledge of Haskell, a willingness to learn, and a project you're excited to help with (or a project of your own to work on).

There will be lots of hacking, good food, and, of course, fun!

Many thanks to Microsoft Research Cambridge for agreeing to sponsor the event.


Registration is now closed We are full, sorry!


We're in the Leah Manning Room of Homerton Conference Centre. It is about 15 minutes walk from the train station, and Cambridge town centre is about 30 minutes walk.


  • 0900: arrive any time from 9am, coffee and snacks will be available until 1000. Make sure you pick up your name badge and wifi details from the registration desk on arrival.
  • 1045: break (coffee/tea, biscuits)
  • 1230: lunch
  • 1500: break (coffee/tea, cake)
  • 1730: finish (we might be able to extend this a little if necessary)

There will be WiFi access, you will be given details when you arrive. We've been told that extra WiFi has been installed in the meeting room for us.

There will be a projector for giving talks/demos. We will probably reserve a part of the time for talks and demos.


Tea and coffee will be supplied. We will have to go out to find lunch, but there are various places to eat and buy food at the Cambridge Leisure Park a few minutes walk towards Cambridge town centre. In the evening we will probably head towards the town where there are plenty of good restaurants.

We have been advised that only food provided by or purchased from Homerton College can be consumed on the premises.

Local arrangements

Getting to Cambridge

By Plane

  • Stansted Airport: Stansted is the nearest of the London-area airports to Cambridge. It is mostly served by flights to and from mainland Europe, Ireland, and elsewhere in the UK. By train it is about 30 minutes to Cambridge, bus about 1 hour.
  • Heathrow Airport: Heathrow is the principal London-area airport and one of the busiest in Europe with a wide range of national, European, and international services. By train it is about 1h30 to 2h to Cambridge (Heathrow Express is faster but more expensive).
  • Gatwick Airport: Gatwick is the second "London" airport with a wide range of national, European and international services. By train it is about 2h to Cambridge.

Trains from London

London has two train lines into Cambridge, London Kings Cross and London Liverpool Street. There is a regular service on both lines and duration is under an hour on the direct trains. Go to National Rail to check train times.

You can usually buy tickets at the station both at a ticket machine or a staffed counter. You usually will not be able to buy tickets on the train without paying a fine. Tickets can be cheaper if you buy off-peak and return trip. Off-peak tickets are usually valid on weekends and after 10 a.m. on weekdays. Make sure, though, to check National Rail for which trains are eligible for off-peak tickets.

Getting to the venue

Walk from the train station (about 15 minutes)

How to find the venue

Local Taxis: Panther Taxis 01223 715715


VisitCambridge: Where to Stay in Cambridge

The nearest hotels to the venue seem to be:

If you contact any of the above and find they're booked up, please remove them from the list.

Microsoft Research recommends the following hotels to visitors, these are closer to the city centre but are probably a lot more expensive than those above:


Use this space to list projects you are interested in working on, and add your name to projects you are interested in helping with.

  • General hacking away at Snap Framework (exact goals TBD), perhaps adding/improving documentation/tutorials at the same time. (Jurriën Stutterheim, Twey)
  • Darcs
  • Something games/3d related? (Stephen L)
  • LambdaCube 3D engine (Csaba Hruska)
    • Discussion about graphics pipeline DSL
  • Designing/proposing/implementing a new low-level network package, similar in role to 'network' itself (Ben Millwood, Twey)
  • Writing a library that implements the ideas of Typing Haskell In Haskell to type-check, say, a haskell-src-exts AST (Ben Millwood, Stijn van Drongelen)
    • I've been advised that THIH is actually quite old, and I might want to find a different base to work from. Any input appreciated. --Ben
      • Use a constraint-based approach, like the monadic constraint library that was presented at Anglohaskell the other year. Much more pleasant. --Philippa
      • Since haskell-src-exts includes GHC-specific extensions, why not round-trip via the GHC AST? That could also be used by other tools. --Nominolo
  • wxHaskell (Maciek Makowski)
  • System.Process: Provide a way to send arbitrary posix signals to a ProcessHandle. Matthiasg 20:56, 20 June 2011 (UTC)
  • Have an option to avoid using package.cache, because it makes working with Open Embedded quite hard. Matthiasg 15:57, 27 June 2011 (UTC)
  • Hackage 2 (Ben Millwood)
  • Data.Text (Jasper Van der Jeugt)
  • unordered-containers (Johan Tibell)


If you have a talk or demo you want to give, add your name to the list below. Let's restrict these to short slots (say 20 mins max). Tentatively we'll have a session of talks and demos on Saturday afternoon, but we can always move things around if necessary.

  • add your name and talk/demo title here...


  1. Simon Marlow
  2. Jurriën Stutterheim
  3. Neil Mitchell
  4. Jasper Van der Jeugt
  5. Max Bolingbroke
  6. Ben Millwood ‘benmachine’
  7. Roman Leshchinskiy
  8. Gregory Collins
  9. Martijn van Steenbergen
  10. Sjoerd Visscher
  11. Sebastiaan Visser
  12. Tom Lokhorst
  13. Erik Hesselink
  14. Jeff Foster
  15. Sebastian Korten
  16. Alessandro Vermeulen
  17. Vlad Hanciuta
  18. Ganesh Sittampalam
  19. Eric Kow
  20. Alexander Njemz
  21. Mikolaj Konarski
  22. Ian Lynagh
  23. Andres Löh
  24. Jeroen Janssen
  25. Nicolas Wu
  26. Duncan Coutts
  27. Dominic Orchard
  28. Jacek Generowicz
  29. Owen Stephens
  30. Stephen Lavelle
  31. Sam Martin
  32. Alex Horsman
  33. Andy Georges
  34. Niklas Larsson
  35. Raeez Lorgat
  36. Maryna Strelchuk
  37. Vincent Hanquez
  38. Chris Done
  39. Tomas Petricek
  40. Thomas Schilling
  41. Dragos Ionita
  42. Simon Meier
  43. Will Thompson
  44. Sergii Strelchuk
  45. Lennart Kolmodin
  46. Philippa Cowderoy
  47. Steven Keuchel
  48. Michal Terepeta
  49. Maciek Makowski
  50. Johannes Weiß
  51. Alejandro Serrano
  52. Mike McClurg
  53. Stefan Wehr
  54. David Leuschner
  55. James ‘Twey’ Kay
  56. Simon PJ
  57. Neill Bogie
  58. Csaba Hruska
  59. Bart Coppens
  60. Stijn van Drongelen
  61. Jeremy Yallop
  62. Paul Wilson
  63. Dmitry Astapov
  64. Matthias Görgens
  65. Johan Tibell
  • Add your name here, once registered...