Some things I found interesting from 2026-01-11 to 2026-01-18

Internet Discoveries between 11 and 18 January

6-Day and IP Address Certificates Are Generally Available
Inside The Internet Archive’s Infrastructure
Show HN: OpenWork – An open-source alternative to Claude Cowork
Found: Medieval Cargo Ship – Largest Vessel of Its Kind Ever
Supply Chain Vuln Compromised Core AWS GitHub Repos & Threatened the AWS Console
How much of my observability data is waste?
Show HN: Webctl – Browser automation for agents based on CLI instead of MCP
LMArena - Benchmark & Compare the Best AI Models
OpenRouter
Honest Trailers - The Lord of the Rings: The Fellowship of the Ring
The chess bot on Delta Air Lines will destroy you (2024) [video]
Cowork: Claude Code for the rest of your work
Floppy disks turn out to be the greatest TV remote for kids
Ansible battle tested hardening for Linux, SSH, Nginx, MySQL
Open Chaos: A self-evolving open-source project
GitHub - kepano/obsidian-skills: Claude Skills for Obsidian
Finding and fixing Ghostty’s largest memory leak
Show HN: I used Claude Code to discover connections between 100 books

Interesting details

6-Day and IP Address Certificates Are Generally Available - Short-lived and IP address certificates are now generally available from Let’s Encrypt. These certificates are valid for 160 hours, just over six days. In order to get a short-lived certificate subscribers simply need to select the ‘shortlived’ certificate profile in their ACME client. Short-lived certificates improve security by requiring more frequent validation and reducing reliance on unreliable revocation mechanisms. If a certificate’s private key is exposed or compromised, revocation has historically been the way to mitigate damage prior to the certificate’s expiration. Unfortunately, revocation is an unreliable system so many relying parties continue to be vulnerable until the certificate expires, a period as long as 90 days. With short-lived certificates that vulnerability window is greatly reduced.

Inside The Internet Archive’s Infrastructure - A deep dive into the Internet Archive’s custom tech stack.

Show HN: OpenWork – An open-source alternative to Claude Cowork - An open-source alternative to Claude Cowork, powered by OpenCode - different-ai/openwork

Found: Medieval Cargo Ship – Largest Vessel of Its Kind Ever - Spotted off the coast of Denmark, the "Svaelget 2" is a cog, a kind of large trading vessel used in the Middle Ages. Experts say the 600-year-old discovery is "exceptionally well-preserved"

Supply Chain Vuln Compromised Core AWS GitHub Repos & Threatened the AWS Console -

How much of my observability data is waste? - After a decade in observability, I kept bumping into one question no vendor would answer: how much of your data is waste?

Show HN: Webctl – Browser automation for agents based on CLI instead of MCP - Browser automation via CLI — for humans and agents - cosinusalpha/webctl

LMArena - Benchmark & Compare the Best AI Models - Chat with multiple AI models side-by-side. Compare ChatGPT, Claude, Gemini, and other top LLMs. Crowdsourced benchmarks and leaderboards.

OpenRouter - The unified interface for LLMs. Find the best models & prices for your prompts

Honest Trailers - The Lord of the Rings: The Fellowship of the Ring

Can you believe we’ve never made Honest Trailers for each individual Lord of the Rings movie in the trilogy? With all of them returning to theaters this mont…

The chess bot on Delta Air Lines will destroy you (2024) [video]

On a long flight, I tried to take down the chess bot available on Delta’s entertainment system, only to find out I was utterly hopeless against it. I decided…

Cowork: Claude Code for the rest of your work -

Floppy disks turn out to be the greatest TV remote for kids -

Ansible battle tested hardening for Linux, SSH, Nginx, MySQL - This Ansible collection provides battle tested hardening for Linux, SSH, nginx, MySQL - dev-sec/ansible-collection-hardening

Open Chaos: A self-evolving open-source project - A self-evolving open source project. Vote on PRs. Winner gets merged every Sunday.

GitHub - kepano/obsidian-skills: Claude Skills for Obsidian - Claude Skills for Obsidian. Contribute to kepano/obsidian-skills development by creating an account on GitHub.

Finding and fixing Ghostty’s largest memory leak -

Show HN: I used Claude Code to discover connections between 100 books - Thematic links across books, automatically discovered by Claude.

All this was saved to my Link Ace over the week