Hi
You will find some implementation details here
As for running the MQTT 5 branch...
first ensure the directory you start from does not already have a sub-directory of node-red
as this will be created when you git clone
git clone https://github.com/Steve-Mcl/node-red.git
git checkout mqtt5
- cd into the newly created
node-red
directory npm install
npm run build
npm run start
please feedback your thoughts and experiences - it could be vital in getting this merged.
Thanks.