I wanted to be able to have the filament sensor mounted to the right side and have compression fittings on it.
It will still mount of the left too.
I used this model to connect the bowden tube to my hot end - https://www.printables.com/model/1107978-ender-3-v3-se-spine-cable-chain
The author remixed this model.
Edited it so it fits on the right gantry, and so you can install PTFE tube compression fittings too.