user@cgh.mx:~$ ls -la /content/posts/

Should you use a hardened Linux kernel?

A hardened Linux kernel can reduce attack surface, but it makes most sense when your threat model justifies the compatibility tradeoffs.

How a tiny GIF created a very real backup failure

A weird Discourse backup incident involving one 1.6 MB GIF exposed a practical lesson about secure uploads, hardlink deduplication, ext4 limits, and graceful fallback design.