The licensed version of Deputy is installed from Caddie version 4.8.2022 and later. Access the install via File –> Settings –> Deputy Updates.
To install the DLL check the box next to install.
To enable / disable the expert, check the box next to the DLL name.

Source code for the licensed version is delivered in
C:\Users\%USERNAME%\AppData\Roaming\RTTK\Updates\Deputy\%Version%\src
ex: C:\Users\Coder\AppData\Roaming\RTTK\Updates\Deputy\2.4.4\src
Total and Kastri are tracked by commits. The references are noted in the interface section of SE.IE.Deputy and on the release notes