You do need a NerdFont for this, as gets mentioned in the Starship installation guide. I’m specifically using the NerdFont variant of Fira Mono here, but you don’t have to use that for this setup.
(I made some light customizations to the preset. If you specifically want those, you can have them, too, but I only set this up two days ago, so I don’t know yet how well it works.)
If you ask because of the powerline shell prompt, I’m using Starship with the Gruvbox Rainbow preset: https://starship.rs/presets/#gruvbox-rainbow
You do need a NerdFont for this, as gets mentioned in the Starship installation guide. I’m specifically using the NerdFont variant of Fira Mono here, but you don’t have to use that for this setup.
(I made some light customizations to the preset. If you specifically want those, you can have them, too, but I only set this up two days ago, so I don’t know yet how well it works.)