Project Freyja is an ESDV application which enables synchronization between the digital twin state on the vehicle (the "instance digital twin") and the digital twin state in the cloud (the "canonical digital twin").
For more information on Freyja's design and how it works, see the design document.
This guide uses apt as the package manager in the examples. You may need to substitute your own package manager in place of apt when going through these steps.
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Install git and rust:
sudo apt update sudo apt install -y git snapd sudo snap install rustup --classic
The rust toolchain version is managed by the
rust-toolchain.tomlfile, so once you installrustupthere is no need to manually install a toolchain or set a default. -
Clone this repository with
git clone
To use Freyja, you will need to implement some adapters and write the main executable that will run the Freyja application.
For a guide on how to get started quickly by running some minimal examples, see the Quickstart Guide.
For more advanced topics on how to implement and use your own adapters, see the Custom Adapters Guide.
The project takes it name from the Old Norse goddess Freyja. This name was chosen because she is a twin (her brother's name is Freyr) and is associated with seiðr, which is magic for seeing and influencing the future. She is also commonly associated with fertility and gold, and rules over the heavenly field of Fólkvangr. She has a necklace called Brísingamen, a cloak of falcon feathers, a boar named Hildisvíni, and rides a chariot pulled by two cats.
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