Thanks to the #CanG in Germany, I can finally get growing!
I let the seed float on top of 250 ml of distilled water for 24 h until I gave her a tap her so she would sink to the bottom.
About 12 h later, her tap root started poking out, at which point I planted her directly into a 15 l Gronest fabric pot, filled with 6 liters of substrate with BioGrow (4 g/l) and 9 liters with BioBloom (4 g/l) mixed in.
I sprinkled some Mycorrhizae into the hole and gave the BioEnhancer (1 g/l) into the water used for germination before using it to water her.
Using a humidity dome, it took 3 days until the newborn seedling emerged from the soil.
Hey, @gottagrowsometime. I use distilled water from our local hardware store which has a pH of 7. At the time, this was my only plant since I didn't have room for more (yet).