Generally speaking, there are ways to reduce a JVM library to the subset that is actually ever referenced by the app during compilation, like ProGuard. So of th

Generally speaking, there are ways to reduce a JVM library to the subset that is actually ever referenced by the app during compilation, like ProGuard. So of the 150 MB theorized library payload only maybe a megabyte is actually used by some app and needs to be delivered to client (browser).