hi, here is my take: up to 80% of web traffic is mobile, yet we still build and present on desktop. dev tools exist, but honestly they're pretty clunky for designers or non-technical folks. so I built a free chrome extension that shows mobile and desktop side-by-side in one click. thought about it, built it. if anyone finds it useful: https://dualpreview.com tbh, building it was way easier than marketing. I've read tons of threads here but still feel like I have no clue what I'm doing. it'...