I'm guessing this question has been answered somewhere, but it's a hard thing to search for. Feel free to re-direct me as needed. Without further ado...
I've built a little collaborative neopixel matrix art thingy, where you can change the color of pixels with a rotary encoder, and when you change one, it uploads the new matrix colors to Firebase so other similar devices can reflect the updates as they're happening. Imagine the famous reddit r/place experiment IRL on a 8x8 NeoMatrix
I want to mail these out to my friends and family, but I'm not sure how to let THEM setup the wifi connection, or if that's possible. I can obviously hardcode their wifi SSID and password and upload a custom version of the code for each device, but if I want to scale this project up and ship more out... is it possible to let end users configure wifi settings somehow?
New to Arduino, but this has been a really fun project! Many thanks in advance for any guidance here.