This is a very early draft. Don't use. ;)
All that is needed is Python3 and HTCondor installed on a node. You can install the tool directly from github:
$ # create a venv to isolate the installation
$ python3 -m venv ca_venv
$ ca_venv/bin/python -m pip install --upgrade pip
$ ca_venv/bin/python -m pip install git+https://github.com/maxfischer2781/condor_accountant.git$ ca_venv/bin/condor_accountant ping-peers