Similarity (Essentia) DSTM mixer - call for help

> - https://github.com/CDrummond/essentia-api Contains a simple HTTP
> server that the DSTM mixer calls to get mixable tracks. This should be
> installed onto the same machine as LMS.

Are there technical limitations which require this to be an external
server (put aside the advantage of having it in a different process)?
Eg. is there a Python library, but none for Perl?

At first I thought as this was a SQLite database, you should be able to
query it from the LMS plugin.

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Michael