Tech Notes
Tech tips and new discoveries
Automating the Proxmox ecosystem: a controller VM for OpenTofu state
Why the VM holding my OpenTofu state in Postgres is the one machine OpenTofu does not manage, and how Ansible finds the rest from Proxmox tags.
LinuxHomelabProxmoxAn autoinstall image for Debian 13, and parameters from the Proxmox API
How I build one Debian 13 autoinstall ISO with preseed and xorriso, and give every machine its own user, address and hostname from the Proxmox API.
LinuxHomelabProxmoxA daily copy of my mirror machine with rsync and systemd
How I keep a fresh copy of the /infra folder from my offline mirror box on a spare workstation partition, with rsync over ssh, a read only key, and a systemd timer.
LinuxHomelabclaude-subscription-to-api - a small API in front of the Claude CLI
Notes on a small container I run at home, which gives HTTP access to the Claude CLI, so I can test API clients without an API key.
ProjectDockerHomelab8tickers - new features since June
Notes on what I added to 8tickers.com over the summer: a dark redesign, a live home page, insider transactions, a richer news feed, and more.
ProjectFinanceWhy Databases Use B+ Trees
Why B+ trees became the default on-disk index structure for relational databases, and where they do not work well.
DatabasesPostgreSQLPerformance