Week 22 Summary

Simon Willison — Week of 2026-05-22 to 2026-05-29#

Highlight of the Week#

This week’s most significant milestone is the release of Datasette 1.0a31, which fundamentally shifts the project’s paradigm by introducing UI support for executing write queries directly against the database. This officially bridges Datasette from a purely read-only tool to one that embraces secure data mutation, allowing developers to save and template insert, update, and delete operations.

Key Posts#

[I think Anthropic and OpenAI have found product-market fit] · Source Simon analyzes the shift in enterprise pricing to argue that AI coding agents have crossed the threshold into massive usage and real revenue generation. He points to Anthropic’s staggering $1.25 billion monthly compute spend and notes that labs are pivoting to capture enterprise value directly from heavy agent users rather than relying on middlemen.

2026-05-23

Simon Willison — 2026-05-23#

Highlight#

Today’s update features a practical web standards TIL (Today I Learned) about the <dl> HTML element, proving there are still useful nuances to uncover in foundational markup regarding structure, styling, and accessibility.

Posts#

[On the dl] · Source Simon shares a few structural and historical insights regarding HTML description lists, prompted by an article by Ben Meyer. For practical formatting, he highlights that a single <dt> can be followed by multiple <dd> elements and that pairs can be grouped strictly inside a <div> for easier CSS styling. He also notes the 2008 HTML5 nomenclature shift from “definition lists” to “description lists” and includes a valuable link to Adrian Roselli concerning screen reader accessibility and ARIA labeling.