Per #4891 (comment), in reference to #4891 (comment) about the NeoKey 1x4 QT I2C Breakout, and other hardware like the NeoKey Trinkey (cap touch, where touchio library is currently used) plus GPIO expanders like MCP23017 & PCF8575, here's an enhancement request issue for the new keypad library to handle more hardware types by adding more native C scanners.