Hash in manifest.json

Hi,

I want to program my changed firmware from this repository via the Lora Config App. Sadly, that does not work because the hash in the `apps/tracker_application/bin/manifest.json `is preventing this from doing. The Lora Config App presents a download error because the hash is not correct.
 
Are you willing to disclose how the hash is formed? 


Thx in advance

Peter De Witte