That’s not what it is at all. Vortex is basically thier old project, the new Nexus Mods App is a whole new project in a totally different language with a larger development team. They have a lot of good goals and ideas on how to improve the modding experience.
This is a recent version of a guide I used to get started with home servers. I learned a lot following it and I can now manage my own home server with a lot of apps.
https://www.smarthomebeginner.com/traefik-v3-docker-compose-guide-2024/
Its a fork of Overseerr for JellyFin