This is true, but given that many applications are built using web tech now, this stack is sufficient to fire up a server and make an app available on localhost

This is true, but given that many applications are built using web tech now, this stack is sufficient to fire up a server and make an app available on localhost. I can see a lot of use cases for that, and it's something that wasn't there in UNIX before X Windows. I'd use this for my personal projects that provide a web interface, since I can build once and sync (using Syncthing) the actual binaries between my Android tablet, my Macbook, and my Intel laptop. Niche use case, but very neat!