We installed Isacreator on a NuGO nbx (nbx7.nugo.org). Since we want all users to use the same up to date instance it was placed in usr/share. To allow this to work we had to give world write access to a number of things. That meakes sense for most things (like the profiles file, that is encrypted anyway), but not necessarily for Submissions. New submissions are created in the Submission folder by default and get the same rights. (Meaning they are readable and writable by any BII user)
i will be adding a settings feature to the tool so that users can choose where to store their submissions instead of me deciding it for them! this will also come in the next release!