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Hacktoberfest 2026: Software Factories, Mastra, and the Future of Agents with Alex Booker from Mastra

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From Spotify’s Honk to Stripe’s Minions, agents are shipping real software, and Mastra Factory is already writing 25–35% of Mastra’s pull requests and closing 50–60% of its issues. Alex Booker from Mastra shows how they built their software factory, what they learned along the way, and how they open-sourced it so you can build your own.

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