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Environment setup

This document describes how to prepare development environment for fobnail.

Building docker container

For the purpose of fobnail application development we have put necessary software into a single docker container which we called fobnail SDK. In order to build the container follow the steps below:

  1. Install docker using the guide for Linux distribution present on your computer.
  2. Add your user to docker group: sudo usermod -aG docker $USER. Then log out of the desktop session then log in again. This step is one-time only.
  3. Clone the fobnail SDK repository:
    git clone
  4. Go to fobnail SDK directory: cd fobnail-sdk
  5. Execute ./ It will build the container with following software available:
  6. Rust 1.55.0
  7. Cargo-embed: always the latest version available from Cargo registry

You will need fobnail-sdk to proceed with any work. The process will take a while to build the container. If we have built the container, time to verify it. We will build a sample application from the fobnail directory using the freshly built docker container. Follow the steps below to test the container:

  1. git clone
  2. cd nrf-hal
  3. Switch to blinky-demo-nrf52840 branch: git checkout blinky-demo-nrf52840
  4. Start container: ./
  5. Build a blinky application:
    cd examples/blinky-demo-nrf52840
    cargo build --target thumbv7em-none-eabihf
  6. At the end of the process you should see something like this:
    Compiling blinky-demo-nrf52840 v0.1.0 (/home/build/nrf-hal/examples/blinky-demo-nrf52840)
    Finished dev [unoptimized + debuginfo] target(s) in 1m 14s