Today Quincy Larson interviews Mike McQuaid. He's a software engineer who previously worked at GitHub, and now serves as lead maintainer of Homebrew, a Mac package manager used by tens of millions of developers. He's based in Edinburgh, Scottland. He's worked remotely as a dev for nearly two decades.

We talk about:
- What does a career in open source really look like
- What skills are going to be the most important going forward
- How big open source infrastructure really gets written and maintained

Support for this podcast is provided by a grant from AlgoMonster. AlgoMonster is a platform that teaches data structure and algorithm patterns in a structured sequence, so you can approach technical interview questions more systematically. Their curriculum covers patterns like sliding window, two-pointers, graph search, and dynamic programming, helping you learn each pattern once and apply it to solve many problems. Start a structured interview prep routine at https://algo.monster/freecodecamp

Support also comes from the 10,104 kind folks who donate to our charity each month. Join them and support our mission at https://donate.freecodecamp.org

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Links from our discussion:
- Mike's podcast, Minimum Viable Management: https://www.youtube.com/playlist?list=PLdx6vnBOYrMZw3ZHjJJyItqQuZQhTIzhc
- Homebrew 5.0 announcement with changelog: https://brew.sh/2025/11/12/homebrew-5.0.0/
- POSSE approach to social media: https://indieweb.org/POSSE

Community news section:

1. freeCodeCamp just published a book that will teach you the math that powers most AI systems. Even if you haven't studied math since high school, you may find this book helpful in expanding your understanding of the layers of abstraction underpinning these emerging tools. You'll learn key concepts in statistics, linear algebra, calculus, and optimization theory. You'll also get a healthy dose of mathematical history. (free full-length book): https://www.freecodecamp.org/news/the-math-behind-artificial-intelligence-book/

2. And if you're finding the sudden surge in AI tools to be overwhelming, freeCodeCamp just published this practical guide to using them effectively. This tutorial will separate the utility from the hype. You'll learn how to minimize hallucinations with Context Management. You'll also learn about agentic tools and in-editor assistants. It even has tips for how to prevent your own developer skills from atrophying, so you can adopt these tools without becoming overly dependent on them. (35 minute read): https://www.freecodecamp.org/news/how-to-not-be-overwhelmed-by-ai/

3. freeCodeCamp also published a course on React Optimization. You'll learn key React design patterns to achieve a screaming-fast front end. This course covers memoization, derived states, throttling, debouncing, concurrency, virtualization, and more. (2 hour YouTube course): https://www.freecodecamp.org/news/how-to-optimize-react/

4. Learn modern music production using the popular FruityLoops Studio Digital Audio Workstation tool. This FL Studio course will teach you sound design fundamentals, mixing, filters, drum sequencing, basslines, synth melodies, and even advanced concepts like kick drum ducking. You can play along at home and by the end of the course you'll have your own bass house track you can share with your friends. (3 hour YouTube course): https://www.freecodecamp.org/news/learn-music-production-with-fl-studio/

5. This week's song of the week is the 2022 song "Ditto" by Korean pop group New Jeans. I like the song feels slow and relaxed even though the tempo is really fast. It has really minimalist production - mainly just 808 drums and vocals. Perfect late night listening. https://www.youtube.com/watch?v=V6TEcoNUmc8

freeCodeCamp is a nonprofit organization offering free online coding courses and programming tutorials, covering topics such as web development, data science, and machine learning. Learners can gain practical coding skills, build real-world projects, and earn certifications to advance their careers in tech.

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Mike McQuaid, Homebrew's lead maintainer and former GitHub principal engineer, discusses balancing open source work with full-time employment, sustainable project leadership, and effective time management. He emphasizes doing fewer things well, setting clear boundaries with users, and building high-trust cultures. McQuaid shares strategies for avoiding burnout including minimizing distractions, batching work, and knowing when diminishing returns set in. He contrasts well-funded tech companies with volunteer-driven open source, explaining why maintainer sustainability must take priority over user feature requests. The conversation covers communication philosophy, handling criticism, and the importance of being direct rather than giving false hope.

The Most Important Skills Going Forward with CTO + Homebrew Maintainer Mike McQuaid [Podcast #204]