To start:
https://www.typescriptlang.org/docs/handbook/basic-types.html

Also take a look at:
https://www.openmymind.net/#node.js

Epub version:
http://openmymind.net/mongodb.epub

PDF version:
https://www.openmymind.net/mongodb.pdf

GitHub:
https://github.com/karlseguin/the-little-mongodb-book

Yes, we do plan to support MQTT. We are creating a new RoadMap and it will contain other IoT protocols as well.

Dear @zenzed,
We are happy to announce the new Zed plugin.
Cheers

Official Build Guides:
https://leapmotion.github.io/ProjectNorthStar/

Simplified Build Guides:
http://exiii.jp/2018/07/25/project_north_star_en/

Sources:
2018.04.09 http://blog.leapmotion.com/northstar/
2018.06.20 http://blog.leapmotion.com/master-reality-project-northstar/
2018.07.25 http://exiii.jp/2018/07/25/project_north_star_en/

IP camera stream support using OpenCV

ApertusVR's Javascript API is based on NodeJS. If you want to know more about NodeJS basics, libraries and patterns, check out this book: http://book.mixu.net/node/index.html.

Sorry for coming back a bit late, we faced many issues around this topic.
Added webServerPlugin in branch https://github.com/MTASZTAKI/ApertusVR/tree/develop which forwards events on webSocket to subscribers.
Cheers :)

Fixed in develop branch.
Commit: ba2bca39

Regards,
Akos