Explore · The library

Every resource founders actually use, in one library.

The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.

What founders use most, ranked by how many answers lean on it.

  1. Why giving your AI agent production database access is its own attack surface. pomerium.com Article · How Founders Use AI When AI has root: lessons from the Supabase MCP data leak Pomerium
  2. Security researchers show how trivially exposed vibe-coded backends get found. labs.cognisys.group Article · How Founders Use AI Supabase leaks: what we found Cognisys Labs
  3. A self-audit you can run on your own app in an afternoon. dev.to Article · How Founders Use AI Supabase security: the hidden dangers of RLS and how to audit your API Fabio (DEV)
  4. YC's practical guidance on working with AI code you intend to keep. ycombinator.com Video · How Founders Use AI How to get the most out of vibe coding Y Combinator
  5. Builds the structured habits (PRD, specs, checkpoints) that make production transition survivable. lennysnewsletter.com Guide · How Founders Use AI The complete beginner's guide to coding with AI: from PRD to first lines of code Lenny's Newsletter
  6. The deploy-day specifics: environments, secrets, monitoring. tsvillain.medium.com Article · How Founders Use AI Deploying vibe-coded applications: a production guide Tekeshwar Singh
  7. Lovable-specific hardening path, useful if that is your stack. logic-square.com Article · How Founders Use AI How to turn a Lovable prototype into a production system Logic Square
  8. The fastest way to get task-based usability data on a clickable prototype. maze.co Tool · How Founders Use AI Maze prototype testing Maze
  9. A neutral overview of where AI genuinely speeds up usability testing. figma.com Guide · How Founders Use AI AI usability testing guide: modern workflow and tools Figma
  10. Turns 'send the link around' into a structured test with real findings in about an hour. reforge.com Article · How Founders Use AI How to get structured user feedback on your AI prototypes Reforge
  11. Real human panels with AI synthesis, highlight reels, and fraud detection on top. usertesting.com Tool · How Founders Use AI UserTesting AI: AI-powered UX platform UserTesting
  12. Mobile-specific prototype testing tactics, useful for app founders. usertesting.com Article · How Founders Use AI How to get rapid user feedback on your mobile app prototype UserTesting
  13. The leading tool for AI-simulated interviews; try it knowing its limits. syntheticusers.com Tool · How Founders Use AI Synthetic Users Synthetic Users
  14. Peer-reviewed-grade caution on what simulated users systematically miss. interactions.acm.org Article · How Founders Use AI The challenges of synthetic users in UX research ACM Interactions
  15. Quantitative comparisons of synthetic versus human responses across studies. measuringu.com Article · How Founders Use AI A review of experiments with synthetic users MeasuringU (Jeff Sauro)
  16. A balanced practitioner summary if you only read one pros-and-cons piece. medium.com Article · How Founders Use AI AI synthetic users for UX testing: pros and cons guide Hashbyt
  17. Head-to-head of the three main AI research platforms, including message testing. genesysgrowth.com Article · How Founders Use AI UserTesting AI vs Maze AI vs Wynter: a complete guide Genesys Growth
  18. A current tool landscape so you pick by need, not brand recall. uxarmy.com Article · How Founders Use AI Top AI tools for usability testing UXArmy
  19. A researcher's hands-on trial of synthetic interviews with honest results. carolinaguimaraeslima.medium.com Article · How Founders Use AI Synthetic users: the next revolution in UX research? Carolina Guimarães
  20. A free field guide for running interviews that produce decisions, not just notes. userinterviews.com Guide · How Founders Use AI User interviews for UX research: what, why and how User Interviews
  21. Prompt to real React Native app, submittable to the App Store and Google Play. rork.com Tool · How Founders Use AI Rork: create mobile apps using AI in minutes Rork
  22. Context on the fastest-growing mobile AI builder and where it is headed. prnewswire.com Article · How Founders Use AI Rork raises $15M to power the next generation of App Store entrepreneurs Rork (PR Newswire)
  23. The top vibe-coding channel on YouTube, heavy on mobile app builds. youtube.com Video · How Founders Use AI Riley Brown's vibe coding playlist Riley Brown
  24. Weekly practical lessons from the founder of a mobile vibe-coding company. newsletter.vibecodeapp.com Guide · How Founders Use AI Learn to Vibe Code newsletter Riley Brown (VibeCode)

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The hubs