Chirp
From Wildsong
"Chirp" is an application that programs radios.
I use it for the Kenwood TM-271 Kenwood TM-D710 and Kenwood TH-6A but it does not support the Kenwood TH-D74A at this time.
I wonder if it works for the Icom radios stashed in my closet. I should check on that.
The main page is here: https://chirp.danplanet.com/projects/chirp/wiki/Home The git repository is here: https://chirp.danplanet.com/projects/chirp/repository It references github but I can't find it on there, maybe Dan has his own git repo?