Devlog #1 – Designed My First Schematic for a XIAO-Based Macropad (Need a Review!)
Today I finished the first version of the schematic for my custom macropad.

3×3 keyboard matrix using:
Rows: r1, r2, r3
Columns: c1, c2, c3

Every switch has a 1N4148 diode

I’ve attached the schematic below.
What I’d like feedback on

–> Is the keyboard matrix wired correctly?
–> Are the diode orientations correct?
–> Are the GPIO assignments reasonable for the XIAO?
–> Is there anything that could cause problems before I move on to PCB design?
I’m still learning PCB and keyboard design, so I’d really appreciate experienced eyes on this before I start routing the board.