When I downsized to a 65% keyboard I knew I was giving up function keys and a number pad but what caught me off-guard was the loss of my backtick (a.k.a. grave accent(`)) key. Because my keyboard runs QMK firmware, I’ve tried a number of modifications.
I replaced my keyboard of many years with a Drop.com Alt keyboard. This keyboard uses QMK firmware, which allows you to create modified firmware and run it on your keyboard. These are my notes about how I built a copy of the firmware locally and pushed it to my keyboard.