I am currently building an app as a web app. Can I work on next versions of the app while the previous one is building? Or will it screw things up?
Not sure, but sounds risky. Unless the build service makes a temporary copy of your app and then builds from that, you could be editing things that it’s trying to build. If you really want to find out, kick off a build, then promptly go change one simple but recognizable thing (edit some text on a page) and save it. Then wait for the build to finish, sideload to your device, and see if the text in the app is from before or after your edit.