Thirty days. Forty-two sheets. As built.
INDEX OF SHEETS · SERIES 01 · COMPLETE
General notes
- 01One lesson per sheet, from systems I actually run. Not announcements. Not advice I have not paid for.
- 02Four themes, four essays, eight short videos. Where a number appears, the repository is one click away. Where a story appears, it happened.
Index of sheetsSeries 01 · Sep 5 to Oct 4
| Week | Theme | Sheets |
|---|---|---|
| 1 | Where the bugs live | 001 – 010 |
| 2 | Trust nothing that crosses | 011 – 020 |
| 3 | Build for the constraint | 021 – 030 |
| 4 | Ship, then prove it | 031 – 042 |
As posted
Thirty days ago sheet 001 went up with a promise that the rest would follow daily. This is sheet 042, the index, and the set is closed.
What it was: one lesson per sheet, from systems I actually run. A marketplace, a reading app, a redaction engine, a tool that finds conversations. Security, AI, engineering, product.
What it was not: announcements, opinions dressed as news, or advice I have not paid for myself.
Four weeks, four themes. Where the bugs live. Trust nothing that crosses. Build for the constraint. Ship, then prove it.
Four essays. Eight short videos. Every sheet, with its notes, in one place on the site.
Everything here is verifiable. Where I gave a number, the repository or the changelog is a click away. Where I told a story, it happened, and it was caught before it reached a customer. That was the standard.
Sheet 042. As built. Series 02 begins with sheet 043.