The drivers can be found on the product pages of the PTZ cameras.
Direct link to the Dropbox folder which contains both drivers:
https://www.dropbox.com/scl/fo/s61w6r4g9pmcal17mi7vh/APfeZDrY8JDkXPmDxdBlhgI?rlkey=yvosdu3opjxxb3xe5sc53yk6a&
Some screenshots with the functionality of the QSYS driver.