Deploying clortho with ansible and venv

I have started using Ansible to manage the few services that I still have running around here. I want to deploy clortho to a user on the system I use for serving up movies to my Roku players. I need to copy the source, setup a venv with the dependencies (aiohttp), and setup a systemd unit to make sure it is started at boot time. As of Python 3.3 the core library includes support for venv, and Python 3.