I’m still a newcomer to self hosting, and I could use some guidance on how to best accomplish what I’m trying to do.

Right now, I’ve got AdGuard, Jellyfin, and Nextcloud running on a Raspberry Pi 4 with a 500 GB external hard drive, using YunoHost. Those services are all available at my free domain name provided by YunoHost.

I’d like to run all of those services on the same Pi they’re on now, but using Docker, so I have more control and access to more applications. I would also like to configure a reverse proxy so I can access them at, for example, nextcloud.mydomain.com. (YunoHost doesn’t support custom domains from Porkbun, which is the registrar I’m using.)

What would be the least painful way to go about this? I understand how Docker works conceptually, but I admittedly don’t really know how to use it in practice. Are there any resources available that would get me up to speed quickly?

Appreciate the help - thanks!