OpenStreetMap Chicago Hack Weekend Report


Last weekend I was in Chicago for the second N-American OSM hack weekend of the year. This one, for me and Serge, was entirely dedicated to MapRoulette. We wanted to get the next generation code as close to ready as possible for release – and we got pretty close I think! Here’s a summary of what we did:

  • Looked at user interface challenges with Tom MacWright, the main architect of the iD editor.
  • Finalized the data model and ORM code.
  • Debugged and improved OAuth authentication code.
  • Discussed and finalized the design for the API.
  • Wrote setup instructions for anyone wanting to deploy MapRoulette (which would mainly be other developers wanting to collaborate on the project)
  • Created an EC2 AMI (ami-995032f0) that has MapRoulette and all dependencies ready to go for quick deployment
  • Created a list of tasks and remaining issues.

We have now gotten to a point where we can share the code and hope to attract more developers, which I think overall is a major milestone.

Here is the public GitHub repository: https://github.com/emacsen/maproulette

To reiterate, the main objectives of this next generation are:

  • Make code and database model more transparent to enable more development collaboration
  • Support for regional challenges
  • Support for working on tasks in a defined area
  • Support for difficulty preferences
  • Enable external challenge providers to submit challenge data through an API
  • Enable linking with OSM accounts to better track user activity and leverage OSM account services such as settings storage

Below is an impression of daytime at the hack weekend:

2013-04-28 14.15.25

..and nighttime:

2013-04-26 23.14.35

Looking back on a fantastic OpenStreetMap hack weekend in Toronto


I am on my way back home from my first visit to Toronto, and my first ever visit to Canada – currently nursing a mild hangover with a Minnesota ale on a 4 hour layover in Minneapolis.

All of this is connected to the second OpenStreetMap Hack Weekend in Toronto I was lucky enough to be able to attend. I had an amazing time! Steve (new!), Serge and I were able to make great progress on MapRoulette, which is of course fantastic, and I thoroughly enjoyed hanging out with old friends and new connections. I want to extend a heartfelt thank you! to everyone who participated, but especially to Richard Weait who has been a magnificent host, and Claus Rinner and Michael Morrish of Ryerson University who made sure we had a comfortable hack space.

Besides some Canadian Rye savvy – hence the current hangover – my main takeaway from this weekend is a renewed motivation to bring MapRoulette to the next level. Not only did we gain a new developer (Steve Singer, of PostgreSQL fame), we also discussed very important architectural challenges and made decisions that will allow us to move forward and make MapRoulette more flexible and extensible and easier to maintain. In the near future, it will be much easier to ‘plug in’ a new challenge, and to run more than one challenge in parallel. While we did write  some of the plumbing for this, the true value of the weekend lies not in getting a lot of code written, but in discussing development face-to-face. We now have a well-defined common operational picture, which will prove invaluable going forward.

Perhaps you would like to learn more about MapRoulette development, or the hack weekend in general? Or maybe you are wondering how you can contribute? Join the Mappy Hour tonight, March 11, at 5:30 PDT / 8:30 EDT, where we will talk about these topics among other things.