Hi! In general, you can deploy Prodigy like any other Python app that starts a web server. I haven't really used Heroku myself, but I found this guide, which looks pretty straightforward:
In your case, the command and Python script you run would be the prodigy command to start the Prodigy server. You just need to make sure that you also upload the Prodigy wheel and specify it in your requirements.txt, so it can be installed on the server: Python Dependencies via Pip | Heroku Dev Center If you need to configure the host and port to run Prodigy on, you can set the PRODIGY_HOST and PRODIGY_PORT environment variables.
I do think that if you're just starting out and haven't done much cloud deployment, Docker could be a good option? It'll take care of setting up the environment for you, so you won't have to worry about any of that. Here's a Dockerfile that might help: Cloud deploy dockerfile