Quentorres

Go to https://academany.fabcloud.io/fabacademy/2024/bootcamp-instructors/quentorres/
have a quick read and decide which board you want to mill.
I decided to do the second variant.
You will have to generate the pngs for milling with KiCAD.
Go to https://gitlab.fabcloud.org/pub/programmers/quentorres
Clone the repo to your harddisk: navigate with Explorer to the folder you want to use
rightclick and choose "git bash

Clone the whole repo:

git clone git@gitlab.fabcloud.org:pub/programmers/quentorres.git

Open KiCAD and open quentorresaurus/PCB/quentorres_v2.kikad.pcb
Go to File --> Plot
Choose the following layers:
F.CU
Edge.Cuts
and save them as pdf
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Import the pdfs in Inkscape and Export them with the right colors as png with 1000dpi (tutorial still to come)

Mill them and solder them.

Step 1: open the Arduino Program under
File --> Preferences --> Additional boards manager urls
enter
https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-03/image-1743425053013.pnggithub.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

In Arduino IDE download the "Pico" board: Tools --> Board --> Board Manager Search for "Pico" and install the Raspberry Pi Pico/RP2040