Need help to find please

A while back I read a post on BLF about flashing firmware. Instead of using a clip, this particular person made something that resembled a flat board with some rigid wires/springs that touched the MCU.

Has anybody seen this? Can somebody direct me to that page, please. I want to do the same thing because I keep hearing complaints about the clips

This is how I do it since I broke my clip.

You’re looking for this

Post 606.