To interface, of course, the three softwares combined would be far too big for this, and probably any, single android, I would need to make that an NTSE submission. That being said Candon would need to find a source who would share the data needed to program Donovan to recognize the format and navigate it efficiently.
I suppose the Destiny software would be easily acquired through legal means but I know for sure that the military software would be treated far more seriously. Candon would need to go through an illegal source to acquire the necessary ACE AI related data. This means he can operate things, his hacking abilities would be another thing entirely.