Well in the case of Bluetooth, both Mozilla and Apple said they wouldn’t support the API for privacy reasons. https://caniuse.com/web-bluetooth https://caniuse

Well in the case of Bluetooth, both Mozilla and Apple said they wouldn’t support the API for privacy reasons. https://caniuse.com/web-bluetooth https://caniuse.com/web-bluetooth And even with Chrome, much of the support is behind flags. As far as universal platform - if you’re that old, you should know how much “universal platforms” for GUI apps have sucked since Java Swing. You should also know how every mobile platform has said at one point that you can “build great apps with web technologies” - Rim, Palm, Microsoft, Android and even Apple - and they have all failed and sucked.