Axel Fontaine, creator of Flyway, one of the most popular database migration tools, joins Marco to share how he built a global open source project, turned it into a profitable business, and sold it to Redgate. From bootstrapping alone to making millions without investors, Axel’s story is a deep dive into the business side of coding.

💡 Topics in this episode:

• How Flyway grew from a side project to an acquisition

• The power of simplicity and zero dependencies

• Turning open source into a sustainable business

• Bootstrapping vs venture capital

• Life after selling your company

⏱️ Timestamps:

(00:00 ) Intro

(00:54 ) Guest introduction

(01:18 ) What is Flyway?

(02:16 ) Evolution of databases and CI/CD

(07:37 ) The idea and first version of Flyway

(10:41 ) Competitors and why Axel built his own tool

(13:27 ) Building Flyway’s simplicity and focus

(17:30 ) Design principles: zero dependencies and reliability

(20:18 ) Learning user focus through onboarding docs

(23:31 ) How Flyway’s roadmap evolved

(27:00 ) Handling bugs, testing challenges, and quality

(31:27 ) Marketing and early promotion

(33:49 ) The Maven Release Plugin blog post

(36:07 ) Technical mistakes and lessons learned

(38:28 ) Managing contributors and open-source community

(44:44 ) Burnout and balancing workload

(50:43 ) Turning Flyway into a business

(52:20 ) Failed monetization attempts

(01:09:11 ) Licensing, IP cleanup, and CLA process

(01:30:02 ) First commercial release and first sale

(01:31:56 ) Rapid revenue growth

(01:39:07 ) Leaving consulting and going full-time on Flyway

(01:44:30 ) Negotiating with enterprise customers

(01:46:55 ) Acquisition interest and decision process

(01:52:46 ) Decision to sell

(02:04:57 ) Life after the sale and reflection

(02:07:38 ) Key lessons for founders

(02:09:50 ) Giveaway

(02:10:47 ) Rapid-fire questions

(02:13:18 ) Outro

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📺 Watch the episodes on YouTube: https://youtu.be/lwF2fg1fOHk