Hello linux gamers, I am a new linux gamer trying to learn stuff (big noob)

I am on EndeavourOS, and have mostly had a really easy time playing games through steam and lutris. One thing that has given me trouble is using config software for my peripherals.

I use an endgame gear OP1 8k v2 mouse and while it has worked really well for me just plug and play, I do kind wanna mess around with some settings like lift off distance or such. There seems to be no official config software on their site, but I did find an open-source tool someone made here: https://github.com/Creationsss/egctl

Only thing is, being a big noob, i'm having trouble installing it. I tried following the instructions written in the install section but I must be doing something wrong, when I try the command "egctl info" in the terminal i get a generic bash error command not found. Any tips ?