App tutorials

• Mix the macOS Background Sounds, each at its own volume

  macOS plays one Background Sound at a time. Use the built-in setting, then layer rain, fire and noise with their own volumes in Tranquillity Maker.

• HTTPS on localhost with Caddy and memorable .localhost names

  Serve your dev server at https://myapp.localhost with Caddy’s local certificate authority, by hand with a Caddyfile or per project with Local Hoster.

• Fix “EADDRINUSE: address already in use” on a local port

  What the EADDRINUSE error means, how to see which process holds the port, and how to stop the right one safely with lsof and kill or Port Pilot.

• Add a button sound with Chip Pops and a few lines of HTML

  Find an 8-bit sound, export its WAV file with blips, and play it from an HTML button with volume control and error handling.

• Help your coding agent find the CLI tools you already installed

  Use CLI Tools Cabinet and clitools to discover installed commands, read capabilities, and check flags before an agent changes your project.

• Keep a daily work log with Note Repo

  Record decisions, nest the details, star unfinished work and find it again with a small daily work log in Note Repo.