Added configuration for Andrej

Use librewolf instead of firefox

nixos/modules/firefox/aarch64-linux.nix

@@ -14,6 +14,17 @@
                       --set MOZ_GMP_PATH "$out/gmp-widevinecdm/system-installed"
             '';
         });
+	librewolf = prev.librewolf.overrideAttrs (old: {
+          buildCommand =
+            old.buildCommand
+            + ''
+              mkdir -p $out/gmp-widevinecdm/system-installed
+              ln -s "${pkgs.widevine-cdm}/share/google/chrome/WidevineCdm/_platform_specific/linux_arm64/libwidevinecdm.so" $out/gmp-widevinecdm/system-installed/libwidevinecdm.so
+              ln -s "${pkgs.widevine-cdm}/share/google/chrome/WidevineCdm/manifest.json" $out/gmp-widevinecdm/system-installed/manifest.json
+              wrapProgram "$oldExe" \
+                      --set MOZ_GMP_PATH "$out/gmp-widevinecdm/system-installed"
+            '';
+        });
     })];
   };
 }