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Open Source Outside the Box

December 17, 2025 · 25 min

Show notes

Open source has always played a big role at 37signals. This week, Jason Fried and David Heinemeier Hansson share why they’re drawn to working in the open, and how that mindset carries into their newest product, Fizzy.

Key Takeaways

  • 00:12 – Why open source continues to matter at 37signals
  • 05:12 – Sharing work publicly pushes quality higher
  • 09:55 – How open source fits into Fizzy’s SaaS setup
  • 15:15 – Treating open source as a gift
  • 19:41 – Getting direct feedback in unfamiliar but fun ways
  • 22:56 – How the team decides what goes into Fizzy and what doesn’t
  • 24:34 – A Danish language lesson

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All episodes of REWORK

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