Hello, Missjo!

Welcome to the forum!
The Pocketbook people do certainly check this forum.
Forkosigan and
mtravellerh are quite active and they belong to Pocketbook's staff.
I am a student, and I'm using my Pocketbook 360 for the purpose of learning economics. Most presentations and documents (converted to PDF) show up quite fine in the small screen, but there are other documents which can become a pain in the unmentionables.
Regarding programming for Pocketbook... I can only say "good luck".