Infra

After a year on Flux and a quarter on Argo, here is a practical comparison from a four-person platform team

Getting Let's Encrypt DNS-01 working when the authoritative internal view is different from the public view, without pulling my hair out

How I sized (and then re-sized) a UPS for a homelab that started small and grew, and the surprising role of runtime vs capacity

Our Hetzner fleet went from 'cloud-init runs for four minutes per boot' to 'image is ready in seconds' with a reasonable Packer pipeline

Ansible got us from 10 to 200 managed hosts, but somewhere between 500 and 1000 it started to grind, and here are the specific pain points

I ran a small Nomad cluster next to my k3s for a month to compare, and I have unsurprising opinions

A CI job was killed mid-apply and left a DynamoDB lock behind, and the recovery taught me to be much more careful about force-unlock

Our backups stopped running for nine days and the cause was a quiet combination of OnCalendar, RandomizedDelaySec, and a drifting RTC

Four months, one service rewrite, the wins were not the ones I expected and the costs were larger than I thought

A checklist of the settings I reach for when a Go service needs to talk to an upstream that's... not great

Shipping a Go binary that loaded fine on Linux but segfaulted on macOS led me down a rabbit hole of executable file formats

GOMEMLIMIT is the Go runtime environment variable I wish I'd known about a year earlier