Help my computer died and I've only got this shitty Mac Mini from work to make a Win10 install media for my new one that I just built.

I've got an external drive and I just made a bootable installer, tried it but it said "can't take your installer to the next stage blah blah..." some shit.

I did it using this: https://www.freecodecamp.org/news/how-make-a-windows-10-usb-using-your-mac-build-a-bootable-iso-from-your-macs-terminal/

Any suggestions of a better way?