Every resource founders actually use, in one library.

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

1. 37signals built durable products on treating customers with genuine respect, and this episode captures their philosophy of... REWORK by 37signals Podcast · ~30 min · Starting Up Let Your Customers Outgrow You Jason Fried, David Heinemeier Hansson
2. Sean Ellis coined growth hacking and built the 40 percent product market fit test, and here he explains why retention, not... Lenny's Podcast Podcast · ~70 min · Starting Up The Original Growth Hacker Reveals His Secrets (Sean Ellis) Sean Ellis, Lenny Rachitsky
3. This companion piece warns about the opposite failure: cutting so hard that the thing is minimal but not actually viable or... Silicon Valley Product Group (Marty Cagan) Article · ~6 min read · Starting Up Viable Product vs. Minimal Product Marty Cagan
4. The Kano model gives you a simple way to sort features into must-haves, performance features, and delighters, so you can see... Folding Burritos (Daniel Zacarias) Tool · ~30 min read · Starting Up The Complete Guide to the Kano Model Daniel Zacarias
5. Video · ~90 min · Starting Up Product Thinking Workshop ft. Kunal Shah and Shreyas Doshi Kunal Shah and Shreyas Doshi
6. This chapter is the clearest argument for our claim that a long timeline means your scope is wrong. Basecamp starts with a... Basecamp / 37signals Book · 15 min read · Starting Up Shape Up: Set Boundaries (Appetite) Ryan Singer
7. A dense list of hard won lessons, several of which land directly on speed and iteration as a startup's main edge over big... Sam Altman Essay · 8 min read · Starting Up Startup Advice Sam Altman
8. Drew Houston validated Dropbox with a three minute demo video before building the hard sync engine, and the waitlist jumped... YourStory Article · 7 min read · Starting Up Dropbox's Demo Video That Got 75,000 Signups Overnight YourStory
9. The author of Running Lean tackles the exact trap in our short answer: founders confuse a wrong timeline with a wrong scope. He... Ash Maurya (Lean Stack) Article · 9 min read · Starting Up Getting to the Right Minimum in a Minimum Viable Product Ash Maurya
10. DoorDash started as PaloAltoDelivery.com, a static page with a phone number and no app, delivering orders by hand. This is the... Stanley Tang (DoorDash co-founder) Essay · 10 min read · Starting Up A New Beginning: The DoorDash Story Stanley Tang
11. Years on, Ries revisits what the lean method got right and where the MVP idea gets abused, which is precisely the trap in your... Lenny's Newsletter Article · ~4,000 words · Starting Up Reflections on a Movement: Eric Ries on the Lean Startup Lenny Rachitsky and Eric Ries
12. This is where the phrase undifferentiated heavy lifting comes from, and it names exactly the trap you are trying to avoid. The... AWS News Blog Article · 6 min read · Starting Up We Build Muck, So You Don't Have To Jeff Barr
13. Auth is the piece founders most often assume is easy, and this walks through why it quietly is not: password storage, resets,... With Blue Ink (Alessandro Segala) Article · 15 min read · Starting Up Please everyone, stop writing your own user authentication code Alessandro Segala
14. Once you have decided to buy auth, this independent hands on comparison helps you actually pick one. It weighs developer... Hyperknot blog Article · 20 min read · Starting Up Comparing Auth providers (Supabase, Firebase, Clerk, Auth.js, Ory and others) Zsolt Ero
15. This is the concrete proof that payments are a solved problem you should borrow: a few steps and you are charging real cards... Stripe Documentation Tool · Docs plus setup · Starting Up Accept a payment Stripe
16. If your MVP is really about testing willingness to pay, you may not need to write payment code at all: a Payment Link is a URL... Stripe Documentation Tool · Docs plus setup · Starting Up No-code options for using Stripe (Payment Links) Stripe
17. For an Indian MVP, this is usually the right payments choice because it supports UPI, cards, net banking, and wallets out of... Razorpay Documentation Tool · Docs plus setup · Starting Up Razorpay Quickstart Guide Razorpay
18. Clerk gives you prebuilt sign up, sign in, and profile screens, so the whole login surface arrives finished rather than... Clerk Documentation Tool · Docs plus setup · Starting Up Clerk Quickstart Clerk
19. Firebase Auth is the battle tested default for mobile first and Google Cloud based apps, with a very generous free tier. It... Firebase Documentation Tool · Docs plus setup · Starting Up Firebase Authentication Google
20. Supabase pairs auth with a Postgres database, so if your app is data heavy you get login and storage from one open source stack... Supabase Documentation Tool · Docs plus setup · Starting Up Supabase Auth Supabase
21. Sending reliable email (verification, password resets, notifications) is its own deliverability problem, and Resend lets you... Resend Tool · Docs plus setup · Starting Up Resend Documentation Resend
22. Cohen, who built WP Engine into a unicorn, shows how he validated it by getting real people to commit real money before... A Smart Bear (Jason Cohen) Essay · Starting Up Vetting a startup: The systematic birth of WP Engine Jason Cohen
23. This addresses your actual fear head on: what a migration off no-code really looks like once you succeed. It lays out the... Lowcode Agency Article · Starting Up What Happens When You Outgrow Bubble Lowcode Agency
24. A concrete Indian example: Flexiple, started by IIM Ahmedabad grads, ran early on Google Sheets, Airtable, and Zapier held... Bubble Blog Article · Starting Up How Flexiple Uses Bubble to Match Tech Talent to Jobs Bubble Blog

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