You should head over to the upstream repository: Gotify-Nextcloud. This repository won't get frequent updates anymore.
A Python script that fetches notifications from the Nextcloud notification API and pushes them to a Gotify server.
The code is mostly based on Talkify.
Just adapt the settings in the settings.py file and start run the script. A working Nextcloud instance and a working Gotify setup is needed.
- Find a better way for authentication, as username and password are stored in plaintext in the settings.py file
- Use a persistent storage so that old notifications aren't resent, when the script is restarted