How to download Fira Mono Regular patched nerd font:

curl -fLo "Fira Mono Regular Nerd Font Complete.otf" https://github.com/ryanoasis/nerd-fonts/raw/master/patched-fonts/FiraMono/Regular/complete/Fira%20Mono%20Regular%20Nerd%20Font%20Complete.otf

Install by executing the file…