Programs/common/starship: add upstream nerd font preset

roles/common/programs/starship.nix

@@ -1,4 +1,8 @@
-{ pkgs, ... }:
+{ pkgs, lib, ... }:
+
+with lib;
+with builtins;
+
 let
 	catppuccinFlavour = "mocha";
 	catppuccinStarship = pkgs.fetchFromGitHub {
@@ -8,27 +12,46 @@ let
 		rev = "main";
 		hash = "sha256-nsRuxQFKbQkyEI4TXgvAjcroVdG+heKX5Pauq/4Ota0=";
 	} + /palettes/${catppuccinFlavour}.toml;
+
+	presets = {
+		nerdFontSymbols = pkgs.fetchurl {
+			url = "https://starship.rs/presets/toml/nerd-font-symbols.toml";
+			hash = "sha256-fPmZrfhwM9NakdlJ7Y4rZ5n6JjsqXNEQ9XuFa8en9n0=";
+		};
+	};
+	# -------------------------------- F U N C T I O N S --------------------------------
+
+	/*
+		Gonna be honest, I have no idea how this works, although it seems to work
+		Stolen from https://gist.github.com/pdalpra/daf339f59288201a6c8ba7dc84e9060e
+	*/
+	# Takes a list of attrSets and merges them
+	mergeAllAttrSets = attrsSets:
+  	foldl' (recursiveUpdate) {} attrsSets;
+
+	# Reads a TOML file and parses it 
+	readTomlPreset = file: (fromTOML (readFile file));
+
 in
 {
-	programs.starship = with builtins; {
+	programs.starship = {
 		enable = true;
-		settings = {
+		settings = mergeAllAttrSets [
+			(readTomlPreset presets.nerdFontSymbols)
+			(readTomlPreset catppuccinStarship)
+			{
 				nix_shell = {
 					disabled = false;
 					heuristic = true;
-				symbol = " ";
 				};
 				os = {
 					disabled = false;
-				symbols.NixOS = " ";
 				};
 				directory = {
 					disabled = false;
-				read_only = " 󰌾";
 				};
 				palette = "catppuccin_${catppuccinFlavour}";
-		} //
+			}
-		# Add the catppuccin palette to the settings file
+		];
-		(fromTOML (readFile catppuccinStarship));
 	};
 }