usbfetch currently only works on Linux. MacOS support is planned.
As of now, you can install usbfetch in the following 2 ways:
If you have Go 1.21+ then run: go install github.com/furtidev/usbfetch@latest. The executable will be available in $GOPATH/bin.
If you don't have Go or don't want to bother compiling, check the latest release. You can download precompiled executables from there. Both amd64 and i386 architectures are supported.