Wow that was a pain, but its finally done.
Started with my system (O3DS XL with 9.2.0-20U) running, unlinked, 9.5.0-23 via rxTools v2.2.1 on a 4GB card.
Now its auto booting rxTools or HomebrewMenu via CtrBootManager on a 16GB card I had.
The first few steps where easy.
- use gateway launcher...