SourceCowD

What if i want to make it a part of game app LAN only, where devices become remotes with web based interface - is it easier to do with sockets...

from what i see it progressively downloads worker scripts

try this https://github.com/naptha/tesseract.js/blob/master/docs/local-installation.md

when i simply added call to mqtt.subscribe() just before socketio.run() it works.