There certainly are videos out there for you but you should determine some goals that you're trying to accomplish. What kind of server? A website? An e-mail server? A local network file server? I think a good place to start as a beginner is to try to make a web server with a personal web site, but there can be a few hurdles with that. The main one is that your ISP may not offer a static IP address, meaning the IP address of your home network might change frequently. There are ways around that but it adds complexity. The fundamentals of what you'll need to host a website from home are:
- A PC with internet connection
- Install LAMP or WAMP stacks (Linux/Windows , Apache, MySQL, PHP)
- Set up port forwarding on your router to direct incoming web traffic to your server
- Register a domain (free ones exist) and direct it to your IP address
This video appears to do a good job of setting up a WAMP (windows) server: WAMP Video
But I recommend using LAMP (Linux). Although Linux may be less familiar to you, if you continue down the rabbit hole of server administration Linux will be so much more helpful to you in the long run.
Yeah, if it was a gaming PC it would have no problem doing Nas and steam. I wouldn't bother with kubernetes or docker though. Just use Linux, no need for containers.