Add solder jumper to select between thru and out
Make initial placement
Add target bom export
Change value of R2 280R -> 270R
Add all components to reichelt bom
Restructure and format bom
Refine component placement
Review placement and route midi subcircuit
Route PSU and connect it to midi circuit
Move toggle switch to the centre of the pcb
Route GPIO, except for I2C and ISP
Route ISP except for reset\
Route reset\
Sort I2C from GPIO pin row
Route I2C pinrow - Finish routing
Optimizations to avoid etching risks
Add mounting holes
Set width of 3.3 V track to 0.6 mm where possible
Draw ground plane
Create ASCII logo