daily-digest

Simon Willison’s Weblog

2025: The year in LLMs

Codex cloud is now called Codex web

Stay SaaSy

2025: Another SaaSy Year In Review

Engineering Leadership

Best Engineering Leaders Know How To Switch Off

Strategize Your Career

I designed a system for productive software engineers to minimize interruptions in their team

Open Source Projects - Latest Discoveries

A clean, private URL shortener you can self-host.
The open-source, self-hosted alternative to Todoist.
Send private push notifications to your iOS devices locally.
Real-time terminal-based intrusion detection for your web servers.
Build a powerful task management system in C
Deploy a production-ready Azure hub-spoke network for learning
Build agents with these ready-to-use ADK samples
Build rigid body physics for multi-core games and VR
Run a GPT-4o level multimodal AI on your phone.
A technical utility for MongoDB research and security testing.
Use cloud browsers with Claude Code instead of local Chrome.
A lightweight tool to mirror and archive websites locally.

Hacker News: Best

🔥 Warren Buffett steps down as Berkshire Hathaway CEO after six decades
🔥 I canceled my book deal
🔥 Stardew Valley developer made a $125k donation to the FOSS C# framework MonoGame
🔥 Efficient method to capture carbon dioxide from the atmosphere
🔥 Tell HN: Happy New Year
💬 Akin’s Laws of Spacecraft Design (2011) [pdf]
🔥 The rise of industrial software
🔥 Show HN: Use Claude Code to Query 600 GB Indexes over Hacker News, ArXiv, etc.
🔥 LLVM AI tool policy: human in the loop
💬 Project ideas to appreciate the art of programming

DEV Community

Top 5 Digital Waiver Tools for Fitness Pros in 2025
Building a YouTube Automation System with Claude AI: From News to Shorts in Minutes
Building an AI-Powered Customer Churn Prediction Pipeline on AWS (Step-by-Step)
The AI Agent Feedback Loop: From Evaluation to Continuous Improvement
Revolutionizing Energy: The Rise of Fusion Startups
I Built a Mental Health SaaS for Entrepreneurs - Here’s the Tech Stack
Debugging “Where to spend my time?” in the job search 🌲
Gemma: Open Models Based on Gemini Research and Technology
Why Learning C Is My First Step Toward Becoming a Game Engine Programmer
My summary of 2025 as an IAM consultant and non-web developer
A New Kind of Parser Method
I Ditched New Year’s Resolutions for AI-Powered Quarterly Reviews