Awesome, there are some really cool ideas here. Are you planning on adding any sort of license? Would love to use some of the feature ideas in another github repo.
Which RGB library are you using for esp32? I was doing some initial LED stuff with a Pi with hzellers rpi-rgb-led-matrix library, but I am having to switch over to esp. Also that PCB looks really nice for avoiding the pain with wires. Do you plan on releasing the files for that?
Personally as a college student, all my friends use iPhones still. I have always wanted to switch to andriod, but one of the things that really holds me back is the fact iMessage still feels leagues above how SMS and texting works on andriod. Many subtle features of Imessage really make a difference with the overall texting experience on the iPhone over the long term.
Most of my friends do not have whatsapp, and we are constantly sharing photos and video. Regular SMS can barely send pictures let alone videos, and I don't want to go through other means to simply shoot my friend a quick video of something.