Maybe I'm missing the point, I use Bootstrap for all my sites then overlay styling on top of that. If I can restyle everything in Bootstrap, what is the point in starting from scratch?
Can you make Google Material design or Microsoft's Fluent design system from Bootstrap base?
Of course not.
Creating your own design system is much more then styling an existing framework. It is a lot of work, especially today. Not everyone can do it, but that doesn't mean that it is not worth doing.
Material Design: fezvrasta.github.io/bootstrap-mate...
Fluent Design: fluentbootstrap.com/
Seriously, what am I missing?
I have answered in other comments.
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