Hi there im setting up a roku channel wheat size does the pkg file need too be
It doesn't need to be any particular size. There used to be a maximum of 2MB, but I believe that requirement was removed a long time ago. There's probably some maximum limit, but there certainly isn't any minimum size limit. You should make an effort to make it as small as possible.
Max size is 4MB
section 3.7
https://developer.roku.com/docs/developer-program/certification/certification.md