I'm using Affinity and I plan to release it as pdf/svg. An editable format would be better for sure; it's a lot of time that I don't use it, I will check it again asap!

> On another note, your format is very suitable for this fold:

Cool!

But it's a bit complex if you have to produce a lot of copies.

As soon the release is stable I will print it and share a picture of the final result.