Build your own locally hosted cloud!

This is the hard part to sell people. I feel like for self-hosting to become popular, there would need to be a “plug ‘n’ play” device that essentially has everything you need to set up a small server on your home network. If you could set up a home server as easily as you can set up a Google Home device, that would be amazing.

Also if you’re looking to make a job out of it, Python will lead you to job opportunities that are imo much more satisfying than JS.

I always prescribe learning Python over basically any other language (unless you’re gonna start doing some real low-level computating). It’s a much more relevant and popular language. C# isn’t irrelevant, you’ll just see Python used way more often. Python will also compliment JS much more.