Want to learn more about SQLite?  Check out my course on SQLite: https://highperformancesqlite.com/?ref=yt  In this episode of Database School, I chat with Glauber Costa, CEO of Turso, about their audacious decision to rewrite SQLite from the ground up.  We cover the technical motivations, open contribution philosophy, and how deterministic simulation testing is unlocking new levels of reliability.  Get your free SQLite reference guide: https://highperformancesqlite.com/products/sqlite-reference-guide.  Follow Glauber:  Twitter: https://twitter.com/glcst  Turso: https://tur.so/af  Follow Aaron:  Twitter: https://twitter.com/aarondfrancis  LinkedIn: https://www.linkedin.com/in/aarondfrancis  Website: https://aaronfrancis.com - find articles, podcasts, courses, and more.  Database school: https://databaseschool.com  Chapters:  00:00 - Intro to guest Glauber Costa  00:58 - Glauber's background and path to databases  02:23 - Moving to Texas and life changes  05:32 - The origin story of Turso  07:55 - Why fork SQLite in the first place?  10:28 - SQLite’s closed contribution model  12:00 - Launching libSQL as an open contribution fork  13:43 - Building Turso Cloud for serverless SQLite  14:57 - Limitations of forking SQLite  17:00 - Deciding to rewrite SQLite from scratch  19:08 - Branding mistakes and naming decisions  22:29 - Differentiating Turso (the database) from Turso Cloud  24:00 - Technical barriers that led to the rewrite  28:00 - Why libSQL plateaued for deeper improvements  30:14 - Big business partner request leads to deeper rethink  31:23 - The rewrite begins  33:36 - Early community traction and GitHub stars  35:00 - Hiring contributors from the community  36:58 - Reigniting the original vision  39:40 - Turso’s core business thesis  42:00 - Fully pivoting the company around the rewrite  45:16 - How GitHub contributors signal business alignment  47:10 - SQLite’s rock-solid rep and test suite challenges  49:00 - The magic of deterministic simulation testing  53:00 - How the simulator injects and replays IO failures  56:00 - The role of property-based testing  58:54 - Offering cash for bugs that break data integrity  1:01:05 - Deterministic testing vs traditional testing  1:03:44 - What it took to release Turso Alpha  1:05:50 - Encouraging contributors with real incentives  1:07:50 - How to get involved and contribute  1:20:00 - Upcoming roadmap: indexes, CDC, schema changes  1:23:40 - Final thoughts and where to find Turso

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