We maintain a Debian package repository for the software, which is developed or related with the COD, for example, the cod-tools package. As Debian packages are also Ubuntu packages by definition, they can also be used on Ubuntu.

Usage

Importing the GPG key. In order to be able to download the packages from the repository, one has to add the repository's GPG key to the trust list of the apt package manager. They key has to be downloaded from https://www.crystallography.net/debian/conf/repository.gpg.key and added via apt-key add command, for example:
```
  wget -O - https://www.crystallography.net/debian/conf/repository.gpg.key | sudo apt-key add -
```
Registering in the sources list. A line has to be appended to the list of apt source repositories (/etc/apt/sources.list):
```
  deb http://www.crystallography.net/debian <os-codename> main
```
where <os-codename> stands for the codename of the Debian/Ubuntu release in use. It could be found using lsb_release:
```
  lsb_release -a | grep ^Codename
```

Updating package cache and installing the wanted package:

  sudo apt-get update
  sudo apt-get install cod-tools