Yeah, that’s pretty dated. There’s one flavor of dotnet (more or less) that runs on everything, and it’s about as efficient as anything with a garbage collector can be.
There are hairs that could be split in there, such as the release cadence, hosting bundle vs desktop runtime, but that’s all much simpler than it used to be. You generally know if you want to run a desktop app vs a webserver.
dotnet is pretty great, runs great on Linux, and you can ship your executable without a need for an external framework if you want.
Dotnet is also open source, a strongly typed language, a large standard library so it doesn’t have the problems of npm, has great performance and is all around the best language out there imo.
Use rust if you need to be closer to the metal, but that’s rare.
Yeah, but you’ll probably figure it out eventually.
Alternatively, gather the IP addresses of family and use your reverse pretty to restrict some subdomains to that trusted list of IPs.
The downside is that when someone’s IP changes you have to update. Make sure you track which IP belongs to which person.