The code available in the GitHub repository has some prerequisites. This article provides some background on what is needed.

These are the big lines of my recipe:

Install headless Linux (my choice is Debian)
Secure your installation and verify it is secure
Create a domain address that points to your server IP
Install PostgreSQL
Tweak PostgreSQL for on-host efficiency: no ssl, huge cache size, large shared buffers, large work mem
Create database user + create empty database
Install Apache2
Configure Apache2: enable ssl, http2 and disable unnecessary things
Install CertBot and get a certificate for https
Install Django
Install git
Create Python virtual env for website, update pip, install pip-tools
Fetch the repo + deploy code
Install the 3rd-party packages with pip-sync
Install, enable and start the systemd workers