feat: nixd, lix -> nix, update fonts

home/fonts.nix

@@ -5,12 +5,19 @@
     ibm-plex
 
     ryan-mono-bin
-    ryan-term-bin
+
+    # Install the variable fonts for Cascadia Code (which
+    # are recommended) instead of the static fonts
+    (cascadia-code.overrideAttrs {
+      installPhase = ''
+        runHook preInstall
+        install -Dm644 ttf/*.ttf -t $out/share/fonts/truetype
+        runHook postInstall
+      '';
+    })
+
     (nerdfonts.override {
-      fonts = [
-        "CascadiaCode"
-        "NerdFontsSymbolsOnly"
-      ];
+      fonts = ["NerdFontsSymbolsOnly"];
     })
   ];
 }