Would anyone be interested in building a decentralised courier?
I am interested if you can assure the safeties of the package and of course the sender security and the receiver .
For security in terms of anonymity, encrypted transactions and messaging on a blockchain could be used. For security of the receiver, a website with a reputation-based system could be used, like the review system that is used for vendors on the dark Web.
In terms of package tracking, I don't have that figured out yet.
Then if you can provide all that mentioned so Be it, and the tracking is the most important part because this is your road to success as the clients will be more concern on this part than everything mentioned above.
Good future ahead mate.