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Chapter 10 of 15 · Harden
Make it a solid, complete product
Your app works and your system runs it, and it is still not a product. This part rounds the rough edges into something real: a proper interface, real accounts, safe data changes, and the reliability that keeps it standing when things go wrong.
By the end of this part, you can:
- Turn a rough build into a finished, usable product
- Handle accounts, payments, and email the right way
- Change your live data without losing any of it
- Make it hold up when something inevitably fails
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Search the book
- 10.1Flow: Designing How It Flows
- 10.2Interface: How It Looks and Feels
- 10.3Accounts: Data, Users, and Payments
- 10.4Email: Send Email Without Landing in Spam
- 10.5Migrations: Changing the Database Safely
- 10.6Reliability: Handling Failure Gracefully
- 10.7Background Jobs: Do Slow Work in the Background
- 10.8Refactoring: Paying Down AI Debt
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