Hey Hendri, luckily the use of such imports from modules without the need for browserify or requirejs is becoming quite well-supported in browsers these days.
There is a very good Google Developers article on the topic here.
Thanks, I’m glad it helped! With regards to the right shift keys — when I got these keycaps through Massdrop, it came with extras like the 1.75u shift and several blank keys for extra compatibility with layouts like this. Depending on where you buy them the set might not come with those, but I think if you use the Tai-Hao website directly, you can buy them as extras. Hope that helps!