PlatformIO doesn't see my devices

I’m following Marlin’s instructions to install the firmware on my Printer, but even though my Linux is able to detect and fully connect to my /dev/ttyUSB0 (using Pronterface) (I am in dialout group), my DevContainer does not.

I’ve typed "mounts": ["type=bind,source=/dev/ttyUSB0,target=/dev/ttyUSB0"] into my devcontainer.json, but when I ls /dev, I can’t see it.

I am on Linux Mint 21.3 using VSCode.