Hi guys!
I found a very simple way to use loadiine directly without use browser and without have Wii U connected to internet
You have to compile the IOSUhax from the
@TheCyberQuake 's Haxchi Mod Custom redNAND Launch Title thread, then choose your DS game version (but only HBL version) and replace it with WUPserver
This loads the homebrew_launcher.elf from SD:/wiiu/apps/homebrew_launcher/ so then paste the .elf from loadiine GX2 and rename it to homebrew_launcher and when you open it it loads loadiine!
Bye!