Better to start with the integrated packager: https://www.b4x.com/android/forum/threads/integrated-b4jpackager11-the-simple-way-to-distribute-standalone-ui-apps.117880/ B4JPackager11 is a B4J non-ui program that builds a package with your app jar and an embedded modularized Java runtime. It...
Thanks, yes I know Javapackager, I use it all the time. What seem interesting with the video above is that it's a single file that doesn't require installation.