Assorted links for Tuesday, April 2:

1. How we host Ars Technica in the cloud, part two: The software
2. Hosting Ars, part three: CI/CD, or how I learned to stop worrying and love DevOps
3. Scaling the Instagram Explore recommendations system
4. How Meta is improving password security and preserving privacy
5. Fixit 2: Meta’s next-generation auto-fixing linter
6. Four tips to keep your GitHub Actions workflows secure
7. How we build containerized services at GitHub using GitHub
8. Scaling merge-ort across GitHub
9. Metrics for issues, pull requests, and discussions
10. A developer’s guide to prompt engineering and LLMs