This existed, it was called XUL, and it was glorious If there is one tech that we need to bring back from the dead, it is XUL (XUL is the GUI toolkit powering

This existed, it was called XUL, and it was glorious If there is one tech that we need to bring back from the dead, it is XUL (XUL is the GUI toolkit powering Firefox, or at least was until they ripped almost all of it out and replaced it with "modern" (gag) HTML+CSS UI)