The idea is to get rid of both hardware and software backdoors, install all necessary tools on a Pi 4 and sell it as a plug-and-play device. Depending on a shipping cost the total estimated price is 150 USD. If you have your Pi 4 already you can just follow the guide.
* [Raspberry Pi 4 model b](https://www.raspberrypi.com/products/raspberry-pi-4-model-b) with 4GB of RAM device will be used in order to avoid Intel ME and AMD PSP.
* [Devuan](https://arm-files.devuan.org/RaspberryPi%20Latest%20Builds) GNU+Linux will be installed, a fork of Debian without systemd.
* [Devuan GNU+Linux](https://arm-files.devuan.org/RaspberryPi%20Latest%20Builds) will be installed, a fork of Debian without systemd.
* For private transaction and communication [Hush](https://hush.land) cryptocurrency and [HushChat](https://git.hush.is/hush/hushchat) were chosen to fulfill this task.
* To start using HushChat right away a privkey for 0.5 HUSH will be provided.
* To ensure that nobody is spying on us the Tor network will be utilized.