You're linking to dpt-tools. I've never tried that software.
I have a Quaderno Gen 2 and personally use dpt-rp1-py (https://github.com/janten/dpt-rp1-py), so I can confirm that at least it works. (When I first set it up, I had to run the "dptrp1 register" command twice because I got an error message the first time, but that hasn't come up again -- you only have to register it once on a given computer.)
I have a Quaderno Gen 2 and personally use dpt-rp1-py (https://github.com/janten/dpt-rp1-py), so I can confirm that at least it works. (When I first set it up, I had to run the "dptrp1 register" command twice because I got an error message the first time, but that hasn't come up again -- you only have to register it once on a given computer.)