We won't see a 'universal' vape oil cartridge anytime soon
 

Preloaded cartridges of cannabis concentrate are among the most popular means of consumption, and for good reason. They're discreet to use and easy to handle, a far cry from the dark days of 2016 when we had to dribble hash oil or load wax into narro...

https://www.engadget.com/2018/07/30/...ietary-design/