I'm going to try freezing it when it's fully developed the pollen to do a x self pollination not sure if this sort of thing is your jam but I'll be harassing my houseplant friends for how-to tips when the time comes

I've never done hand pollination on an arum but I think some folks have done it successfully with Amorphophallus (same family)... though it required two that were flowering at the same time. I'm not sure about freezing the pollen though, I feel like that's got a good chance of killing the cells?

ah, it's a trick often done by Anthurium collectors! My friend has a "Sam's Dream" breed which she was able to cross with itself this way. It's this whole plants meets pokemon culture, they try to breed new ones all the time.