This week on the Pybites Podcast, join Robin and Bob as they sit down with the remarkably skilled Marcelo Trylesinski, a distinguished software engineer currently working at Pydantic. Not only is Marcelo a key maintainer for Uvicorn and Starlette, he's also recognized as a FastAPI Expert, a title earned through his meticulous dedication to resolving GitHub issues and contributing to the open-source community.In our conversation, we dive into Marcelo's unique journey, uncovering the disciplined routine of issue resolution that propelled him to become a prolific open-source maintainer and a beacon of expertise in the FastAPI world. Marcelo shares insights into his pivotal moment of joining Pydantic, his ongoing contributions, and the mindset that drives his success as a developer. Beyond the technical, we explore what it means to be a valuable open-source contributor and the broader impacts of such work.From his initial steps into the realm of Pydantic to his current endeavors, Marcelo's story is one of passion, perseverance, and the power of a positive developer mindset. This episode is packed with valuable takeaways for anyone looking to make their mark in open source or to deepen their understanding of FastAPI and beyond.Prepare to be inspired by this engaging conversation, offering a glimpse into the life of a developer who's truly mastered the art of open source contribution, one issue at a time.---Chapters:00:00 Intro + win of the week02:52 How did you become the FastAPI expert?06:55 Learning frameworks through solving issues10:30 Building up a habit of practice12:05 How did you land a job at Pydantic?13:40 GitHub + contributions a track record15:12 Current Pydantic work16:35 Zen's "there should be one obvious way" in open source20:00 How to implement an admin page in FastAPI?22:40 What does Starlette do in FastAPI?23:20 Mindset and productivity as a developer27:17 The ideal open source developer interaction29:10 Use PRs to comment (document), not code29:56 What are you reading / listening31:28 Final piece of advice / using issues vs PRs34:20 Learn GitHub repos by turning on notifications35:35 Wrap and outro music---Reach out to Marcelo on X, GitHub and LinkedIn.Follow his YouTube Channel: The FastAPI ExpertMentioned talk: What does Starlette really do for FastAPI?Book tip: The Medieval World