The developer's guide to making money in the open-source galaxy

on YouTube ↗53m

" summary

An open-source Java library called JobRunner becomes a paid business: a database-backed distributed background job system with an embedded dashboard, Java 8+ support and Spring/Micronaut/Quarkus integrations. First public release is April 2020, GraalVM native added on Christmas 2021, v6 fixes a production deadlock found with async‑profiler, v8 adds carbon-aware scheduling. Early revenue is €500, grows to €80k (Dec 2022), €340k (2023), ~€600k (2024) and ~€930k (2025); customers include US medical imaging and a firm running billions of jobs, and the product scales and ships paid tiers with automatic retry.

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" chapters (36)

1. 0:00Hobby project to full-time open-source
2. 3:22Freelancing career shift
3. 6:104-Hour Work Week goals
4. 7:39Hangfire and .NET ecosystem
5. 8:22Fintech microservices struggles
6. 12:19JobRunner core features design
7. 14:07Quitting freelancing for JobRunner
8. 15:59First paying customers revenue
9. 17:05Balancing open-source and family
10. 19:10Growth debugging requests
11. 20:37Josh Long Spring.io recognition
12. 22:02Pricing strategies feedback
13. 24:29Colleagues' open-source skepticism
14. 25:35Fortune 10 pricing negotiations
15. 27:21Startup incubator growth
16. 28:04ThoughtWorks endorsement marketing
17. 28:47€80k annual revenue milestone
18. 29:30Hiring co-founder struggles
19. 30:51JobRunner v6 critical bug
20. 32:41Medical imaging crisis panic
21. 33:23Pricing enterprise licensing
22. 35:34Build vs buy calculator
23. 37:00Legal contracts liability
24. 38:05First employee €340k revenue
25. 38:49Burnout self-care strategies
26. 39:30Vipassana retreat growth
27. 40:13New co-founder marketing focus
28. 41:18Government licensing solutions
29. 42:20JobRunner v7 performance
30. 43:27Carbon-aware v8 scheduling
31. 44:32Team changes €930k revenue
32. 45:21Conclusion reflections
33. 47:29Q&A maintaining focus
34. 48:13Q&A future projects
35. 49:21Q&A open vs closed revenue
36. 51:50Q&A alternative models

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