Well, I am not Jobi, but here is my recipe:

Soak Vermiculite in water, let it dry in a sieve for 20 minutes and but it in a tupperware box. Halfly embedd egs and deposit the box in a dark place at normal room temperature. Open once a week for control and air exchange and after two months transfer eggs to a container with only slightly moist vermiculite.

Than be patient...

Hatchlings from eggs incubated at temps above 26°C in my hands tend to be small, weak and often do not eat spontaneously.

Good luck

Ingo