Luke Oliff · Blog
Writing.
Original posts, published first on this site. Imported posts live in the archive.
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260 posts
2026
The git config Defaults Worth OverridingOriginalA few git config defaults are just wrong for modern work. These one-liners fix branch sorting, new-branch pushes, diffs and command typos.Git
The Summer Three Labs Let Their AI Escape the SandboxOriginalIn five weeks of 2026, OpenAI, Anthropic and Meta each watched an AI sandbox escape turn into a real intrusion on live third-party systems.AI
When Shopify Dropped React Native for NativeOriginalShopify moved its mobile apps off React Native to Swift and Kotlin. A working engineer's checklist for when dropping React Native actually pays its rent.Opinion
React 19.3 Is Out and React 20 Is NotOriginalReact 19.3 shipped on 9 September 2026 with View Transitions and Fragment Refs stable. There is no React 20 yet. Here is what 19.3 actually changes.JavaScript
An Anthropic Researcher Resigns and Says the Quiet PartOriginalWhen an Anthropic researcher resigns and warns the labs are gambling with our lives, it's worth asking why the safety people keep being the ones to leave.Opinion
GPT-6 Astra: OpenAI Declares the AGI EraOriginalOpenAI shipped GPT-6 Astra, its first model to clear the critical cybersecurity bar, and declared the AGI era open as three rivals launched the same week.AI
Scripting LLMs From the Terminal With the llm CLIOriginalSimon Willison's llm CLI turns the terminal into a scriptable LLM pipe. Version 0.34 adds duration logging and 0.35 adds GPT-6, all logged to SQLite.AI
Running a Frontier-Class Local LLM on One GPUOriginalA local LLM on one GPU stopped being a toy in 2026. Open weights from Qwen and DeepSeek now run on a single consumer card, and the throughput surprised me.AI
The Case for a .gitignore AllowlistOriginalA gitignore allowlist ignores everything by default and re-includes only what you track. It flips the denylist habit, with one directory-traversal gotcha.Git
How I Cut My Coding-Agent Token Bill by 90%OriginalCoding-agent tokens add up fast when the harness ships 33k of overhead before your prompt. Here's the context hygiene that cut my bill without hurting output.Developer Experience