[jjrh]

It's a shame no one has figured out how we can get the flexibility of html/css/js in a way that is fast.

[toast0]

Tk?

[0x0203]

Sadly very overlooked these days.

[johnisgood]

With ttk.

[homarp]

if you can elaborate a bit on a) flexibility b) fast

like the fellow commenter said, python might qualify as flexible, fast to code, and 'fast enough'

[ravetcofx]

Python?