All tools
Running it · 4 of 110 stories
SQLite
A database engine that is a code library inside the application: it stores all the data in one file on disk, so a business needs no separate database server.
Who uses it, and for what
One row per story. The grade is for the claim that the business uses this tool, not for its revenue.
| Story | What it does there | When | Cost stated | Grade | Source |
|---|---|---|---|---|---|
| Photo AI | The database of the product, as for all of the founder's sites. | C | Lex Fridman Podcast #440, August 2024: Pieter Levels: Programming, Viral AI Startups, and Digital Nomad Life, transcript | ||
| Interior AI | Database of the site; the dispute system keeps each payment dispute in a SQLite file. | C | Pieter Levels, 6 April 2026: Made an auto-dispute response system for Interior AI | ||
| BoltAI | Local database that stores the chats on the customer's Mac. | C | Daniel Nguyen's newsletter, 29 September 2024: Sep 2024: Interview on Indie Hackers | ||
| Skillry | Database of the website backend, in the founder's tech-stack list. | C | TrustMRR markdown profile: Skillry, synced 15 October 2026 |
Grade A: the tool's maker or a payment processor confirms the use. Grade B: an independent report, or the tool is visible in public code. Grade C: the founder or the company says so.
Used in the same businesses
Other tools in the stories above, with the number of stories that share both.
Other tools for the same job
Running it, with the number of stories that use each.