The octopus package is available on GitHub, where you can either clone the repository with:
git clone https://github.com/cuspaceflight/octopus.git, or you can install with pip:
pip install git+https://github.com/cuspaceflight/octopus.git.
The github page can be found here: `https://github.com/cuspaceflight/octopus`_
As the project is in the beta phase, there may be pushes to the repository that come without a new version number. If you want to be completely up-to-date (and risk unstable releases) you should regularly uninstall and reinstall (this is not the same as updating with pip).