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San Francisco Bay Area & Silicon Valley Haskell Hackathon

Come join a group of Haskell hackers to enjoy a weekend of learning, sharing, and hacking on a variety of projects. Bring your laptop! All skill levels are welcome.

When: Friday, April 7th – Sunday, April 9th, 2017
Where: Takt office: 35 Stillman St, San Francisco
Cost: Free
Registration: Registration form for BayHac 2017
News and Discussion: BayHac Google Group

BayHac 2017 is organized by Dan Burton with the assistance of Haskellers like you! If you would like to help in any way, or have any questions about BayHac, kindly direct your queries to the BayHac Google Group.


  • /Cabal dependency solver: The dependency solver for the cabal build tool
  • /Clash: Functional hardware description language
  • /CodeWorld: Educational computer programming environment using Haskell
  • /dynobud: your dynamic optimization buddy
  • /Juno: Byzantine Fault Tolerant Raft With Smart Contracts
  • /Karya: Music sequencer
  • / Crowdmatching for public goods
  • /Unison: Distributed purely functional programming platform.




  • 06:00pm BayHac opens for the day
  • 07:00pm Greg Horn: Haskell for Flight Control at Kittyhawk
  • 08:00pm Tikhon Jelvis: Haskell for Supply Chain Optimization at Target
  • 09:00pm BayHac closes for the day


  • 09:00am BayHac opens for the day
  • 10:00am Gabriel Gonzalez: How to create a new Haskell project
  • 11:00am Julie Moronuki: Introductory Haskell
  • 12:00pm Lunch break
  • 01:00pm Michael Litchard: Next Step Haskell
  • 02:00pm John Leo: Dependent Types in GHC
  • 03:00pm Dimitri DeFigueiredo: Functional Reactive Bitcoin Trading
  • 04:00pm Judah Jacobson: Haskell Bindings for TensorFlow
  • 05:00pm Chris Smith: CodeWorld - Teaching Haskell to Children
  • 07:00pm BayHac closes for the day


  • 09:00am BayHac opens for the day
  • 10:00am John Wiegley: Putting lenses to work
  • 11:00am Adelbert Chang: All About Applicative
  • 12:00pm Lunch break
  • 01:00pm Doug Beardsley: Real World UIs with Reflex
  • 02:00pm James Bowen: Type Level APIs with Servant
  • 03:00pm Sandy Maguire: Don't Eff It Up: Free Monads in Action
  • 04:00pm Luite Stegeman: Something GHCJS
  • 05:00pm Greg Hale: Full-stack typesafe Haskell
  • 06:00pm Rúnar Bjarnason: Adjunctions in Everyday Life
  • 07:00pm BayHac closes for the day

Sponsors and donations

BayHac is free to attend. We rely on the generous donations of individuals and sponsoring companies to supply the location, equipment, and food. To donate, please contact Dan Burton ( AT gmail DOT com).

Is this a scam to steal my intellectual property?

BayHac is not that kind of hackathon; there is no competitive coding element here. It is only a "hackathon" in the sense that a group of Haskellers will gather to hack on various projects.

See our /Intellectual_Property_Policy

What will BayHac be like?

We will strive to fulfill the /hopes of our attendees.

See also: past years of BayHac.