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Thermosiphon Butterflies

The thermosiphon has been proving itself this whole Winter. It’s quickly becoming one of the best features of our house design and it’s not hard to imagine why. 100% passive & efficient air circulation taking heat from the stove to every nook and cranny of the house. No power, no fan, no duct.

As a bonus, it animates decorative butterflies. Now I don’t really care about the butterflies; I only like seeing them as an indicator of the free work our house is giving us. They’re a great analog anemometer.

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Web Omnipresence with Docker, VPN & Squid proxying

Here’s a method for having several browser windows proxying through several countries concurrently.

Demo

Working Principle

Requirements

  • a VPN service supporting OpenVPN as a client (this example uses vpntunnel)
  • Docker
  • Firefox
  • MacOS isn’t a requirement per se but this guide & accompanying scripts are written for it.

Setup Steps

  1. Download this package containing Dockerfile build instructions & some scripts.
  2. Populate the directory “openvpn_config_files/” with the ovpn files from the VPN service you use.
  3. Edit the script called “vpn” and replace <VPN_SERVICE_USERNAME> and <VPN_SERVICE_PASSWORD> with your username and password.
  4. Run with “./omnipresence.sh <name_of_ovpn_file>”