The officially maintained library bundle is available at https://files.apertus.org/elmyra/elmyra-lib.zip
The paths to the dependencies' executables need to be updated in the src/[platform]/paths.json manifests for every update!
Blender can be bundled as-is except for one critical manual tweak, namely isolating its runtime environment from any user/system blender that might be installed on the machine where elmyra runs.
For this simply create an empty config/ folder in blender's 2.82/ directory. (see Q/A on Blender Stackexchange)
This refers to the executables (ffmpeg, ffplay, etc. though only ffmpeg itself is needed) and not to the libav* C libraries.
These are the blender files and image/font file assets Elmyra imports when it generates or updates visualizations. They are located inside lib/elmyra/ and documented here for overview and development reference purposes.
environment.hdrillustrated.blendoxygen-mono.ttfpreview-widgets.blendrealistic.blendsection.blend