top of page
  • aquameyer

Open Data Day 2019 - Community Driven Hackathon

Updated: May 26, 2020

The last six months have been busy for C4SF, as we’ve gone through changes in leadership, supported strong turnout at our weekly hack nights, and completed two projects with a C4SF sponsor—not to mention moving to CfA’s new HQ on Mission Street. Just when we thought we might get to take a breather in January, we realized that one of the biggest events of the year - Open Data Day - was just a month away!

Though we explored the idea of bringing in keynote speakers, as we had done for previous Open Data Days, we ultimately decided to see what would happen when we let our hack night project teams take over the day. They responded with “game on” enthusiasm that turned our event into a full day of programming powered by their grassroots, community-driven energy.

Here’s what they have to say:

Shelter Tech

Richard Xia, a ShelterTech developer, says, “It was great to have access to devs.” Even though most people think ‘quantitative’ when they hear the word ‘data’, “most of our data was qualitative, which made it easier for us to put folks to work.”

Open Transit

Neel, a project manager at OpenTransit: “We walked people through the open data process.” With the opportunity to focus on their project over a full day, the OpenTransit team churned out over X GitHub commits - Y% of all their commits to date.

Data Science Working Group

Rocio, co-lead of the Data Science Working Group, hosted a workshop on using the R language to analyze open data. “It was a great introduction to open data. We had a lot of beginners, but there was room for people to choose their own adventure.”

Vincent, the group’s other co-lead, led a team focused on analyzing campaign finance data. “People came out and explored [the] data. We made material progress that day and pushed the project forward!”

Lane Breach

The LaneBreach team describes their project as “creating a hub for bike data in San Francisco through consolidating sources and providing easy access through a single API. Our goal is to daylight difficult to find data, which are made available to non-technical users through a web service with simple tools and intuitive visualizations.”

Alex, LaneBreach’s founder, offers some of his own personal reflections: “I enjoyed preparing for the event. It’s sometimes difficult to set defined goals on an open-ended project like this, so having some external pressure was very welcome. This was also a chance to get some feedback from a group of people who don’t normally come to hack night. Very valuable, I had some great conversations. I particularly enjoyed the breakout discussion surrounding the social impacts of crowd-sourced data collection.”


According to the NLtweets team, “[we have] a mission to provide projects with a tool that will let them accomplish valuable user research data in one night, and, with continued study of their domain problem, meaningful insights over time.”

On Open Data Day, the team was able to work in a way that went beyond the regular Wednesday events: “Every project needs good user research to maximize their chances of making the biggest impact possible, but the format of weekly Hack Nights doesn’t afford the time to plan and implement a solid user research campaign. And experience has shown that user research is an activity many members might not know much about or maybe isn’t high on their list of skills they want to master.”

NLTweets’ founder Josh Freivogel hosted a presentation on data ethics that turned into a lively discussion: “The community wants to engage more than I anticipated. The give and take was fantastic.” About the event, he says “the quality of the other project presentations is telling regarding the seriousness with which volunteers are collaborating to solve big problems.”


At this year’s Open Data Day, trying a bottom-up approach meant that each team brought something different to the event - and got something different out of it. Seeing what can happen when we’re willing to experiment has fueled our enthusiasm to host events that go beyond our traditional formats. Stay tuned - we’ve got more coming!

62 views0 comments

Recent Posts

See All
bottom of page