# Quoting David Crawshaw

> Source: <https://simonwillison.net/2026/Aug/3/david-crawshaw/#atom-everything>
> Published: 2026-08-03 16:15:27+00:00

`Set up a nightly cron job that executes the prompt: fetch upstream changes to the <software> and rebase all local changes on top of upstream. Check that the software works as intended and replace the current version.`

— [David Crawshaw](https://blog.exe.dev/devtools-must-be-open-source), Devtools must be open source

Tags: [prompt-engineering](https://simonwillison.net/tags/prompt-engineering), [coding-agents](https://simonwillison.net/tags/coding-agents), [generative-ai](https://simonwillison.net/tags/generative-ai), [ai](https://simonwillison.net/tags/ai), [llms](https://simonwillison.net/tags/llms), [open-source](https://simonwillison.net/tags/open-source)