Open Source Outside the Box

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 Links and Resources Fizzy is a modern spin on kanban. Try it for free at fizzy.do Record a video question for the podcast Books by 37signals Sign up for a 30-day free trial at Basecamp.com HEY World | HEY The REWORK podcast The Rework Podcast on YouTube The 37signals Dev Blog 37signals on YouTube @37signals on X

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Open Source Outside the Box is an episode from Rework by 37signals.

This episode is 25:24 long.

This episode was published on Dec 17, 2025.

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