Whipped this up after watching the LTT video.

Case has plenty of room for a nano, and may work with an uno sized Arduino without modifications though it may be tight.

Assembly & parts:

1. M2x12 15x:Attaching Labels and potentiometers to the faceplate. (Labels are easier to attach first
2. Solder together 6 female to female jumper cables to make a squid, attach to the ground on arduino and the pots ground.
3. Repeat step 2. connecting the VCC pins of the pots to the 5v line of the Arduino.
4. Run Jumpers from the OTC pins of the potentiometers to pins A0-A4 of the Arduino.
5. Run the USB cable through the hole in the back of the case connecting to the Arduino.*
6. Now's the time to plug it into your PC and detect the com port it will have with arduinos tool, and flash the program. (Note down this com port you will need it to configure deej, COM PORTS CAN AND WILL CHANGE IF THE DEVICE IS PLUGGED INTO ANOTHER USB PORT)
7. M2x16 4x: attach the completed faceplate to the stand being mindful not to pinch cables and making sure that the USB cable can be pulled in and out of the case without dislodging cables.

*Run cable through stand before connecting to Arduino as only the small end is designed to fit through the hole, Arduino and cable are loose to allow excess cable to be stored inside the case.

Deej Repo(has wiring diagram): https://github.com/omriharel/deej
Potentiometers used: https://www.amazon.com/dp/B01CZVZ16O 10k logarithmic pot, 71mm hole to hole

Labels can easily be customized with text in tinkercad, I recommend setting them to be 2mm in height that way they are level with the accent edge.

Attributions

Case and logo free parts designed by me in OnShape: https://cad.onshape.com/documents/a60d34071a12d1954f989f7e/w/9a9595f83ed9c77c99f26c44/e/d3578558cabc2b69aa0ea013?renderMode=0&uiState=65fd9379e8a81756e39ae98d

Labels can be customized in tinkercad: https://www.tinkercad.com/things/3fimRqxLczP-mixer-labels?sharecode=SnSo1P16BpNFsGeFJOIs0C2Igvb_m6lLZNee1PgLoNM

Discord Logo by BioShockZzZ: https://www.thingiverse.com/thing:2448029/files

Music Note Remix: https://www.printables.com/en/model/644563-music-note-symbol/files
Music Note Original by DoppioZero: https://www.printables.com/model/105823-music-note-keychain