We now have "source" packages for Jitsi-Meet here:
They include everything needed to be served by the web-server (and hopefully nothing else). Notably they include a libs/app.bundle.js created from the source files at the given version (i.e. jitsi-meet-1.0.650.tar.bz2 is built suing sources from the git tag "650"). These packages can be used to serve an up-to-date version of Jitsi-Meet without the need to setup a build env.
Now that we have that, I plan to remove libs/app.bundle.js from the github repository, unless there are objections. Any thoughts?