Blog

• $

  dev container must haves

  Dev container must haves

  September 29, 2026·40 min read·#vscode#devcontainer#docker#setup

  Five things every dev container should forward from the host: the timezone, your SSH key, a gh token, your Claude login, and a non-root user. Written for all three shapes: devcontainer.json, docker-compose.yml and Dockerfile.

• $

  hostname --change

  Changing the hostname

  September 26, 2026·2 min read·#macos#ubuntu#networking#hostname#setup

  Rename a machine properly on macOS and Ubuntu, including the parts that quietly revert it on the next reboot.

• $

  sudo --use-touch-id

  Touch ID for sudo

  September 26, 2026·5 min read·#macos#sudo#touchid#security

  Authenticate sudo with your fingerprint instead of your password, in the terminal and inside tmux.

• $

  ssh-keygen -t ed25519

  SSH keys you only unlock once

  September 26, 2026·10 min read·#ssh#security#macos#ubuntu#zsh

  Create SSH keys and add them to a host or to GitHub or another version control service.

• $

  gh auth in a box

  git and gh CLI in a dev container

  September 19, 2026·21 min read·#devcontainer#vscode#github#git#ssh#security#dev

  Two GitHub identities on one laptop, kept apart by a dev container, an SSH key and a token. Runs the same on macOS, Ubuntu and Windows with WSL.

• $

  what is homelab

  What is a Homelab?

  September 17, 2026·3 min read·#basics#foundations

  A spare computer that stays on, quietly doing something useful for you. What a homelab actually is, what runs on one, and why you would want one.