What is a roon extension?How different is it from a roon remote and roon core?

[mjw]

Check out the Tinkering category in the forum:

About the Tinkering category

This category is for all the DIYers out there! Discuss your latest hardware and software projects, using the Roon API to build extensions, how you’re customizing Roon in your home, or anything else related to Tinkering!