Install on a non NixOS system

Install nix either with the package, or using determinate systems installer. Make sure that flakes and nix-command are enabled.

experimental-features = flakes nix-command

Run home-manager the first time with nix commands.

nix run home-manager -- switch --flake .

Afterwards make can be used

make home

The terminal needs to have the Roboto Mono Nerdfont installed.