Simon Willison (@simonwillison.net): New TIL: Using uvx in GitHub Actions in a cache-friendly way I finally found a recipe that I like for running `uvx tool-name` in GitHub Actions without downloading a fresh copy of the package every t

Simon Willison shares his experience creating a custom animated pet (a pelican riding a bicycle) for Codex Desktop using GPT-5.6 Sol and gpt-image-2. He reverse-engineers the sprite generation process and documents the step-by-step workflow, including all intermediate images and prompts. The article provides practical insights into using AI image generation for creating game-ready animated sprites.

Simon Willison documents his experience using Claude Code to port the Moebius 0.2B image inpainting model to ONNX format for browser-based execution via WebGPU. He walks through the agent-assisted conversion process and shares a working demo that allows image inpainting directly in the browser without CUDA dependencies.

Simon Willison shares practical tips for optimizing Claude Code's Fable agent, including letting the AI use its own judgment for testing decisions and delegating coding tasks to lower-power subagents to save tokens. The article provides specific prompt examples and real-world results showing improved cost efficiency while maintaining productivity.

This OpenAI Cookbook tutorial demonstrates how to build a speaker-aware meeting intelligence pipeline using audio diarization and transcription. It provides practical code examples for processing meeting audio to identify different speakers and generate structured meeting notes. The guide covers the technical implementation details and architecture for creating an automated meeting analysis system.

Simon Willison documents creating a custom animated desktop pet named 'Pedalican' using Codex Desktop's pet feature. The article details how GPT-5.6 Sol generated animated sprites through multiple rounds with gpt-image-2, including all prompts and generated assets. It explores using image generation for game-ready sprites and points to the open-source implementation details published by OpenAI.