Test Button 9 Grid 3x3

Hey so I'm prototyping a custom game keyboard and need to test the buttons before i solder them into my matrix. Hence the need for a quick test bench where I can qa the components and even wire them up with a simple program and use a breadboard to hold the micro (like a pico2 or something). Saves a bunch of time if you get a bum component (happens all the time) This is my first model that I designed myself, be kind but i'll take feedback for sure and would love to see your remix