The app of our team is a frontend for users to show up and manage their games collection. This frontend is also themable, so users can write their own themes or download other themes made by the community. The itch app client and the butler tool look pretty interesting for us for easy update management. So if the user want to delete our app for whatever reason, maybe he will want to keep the theme he works on or other things like this. We want all of this to be portable to allow the user to copy the whole install on amovible storage and use it on every PC that meets the requirements.