Please don’t give it up!

If you haven’t tried Schedbule Nurse yet.

Schedule Nurse is a platform for writing unique workplace rules on shifts and tasks with hard and soft constraints.
You can write unique rules in GUI. Also, you can write constraints in Python.

 World’s best optimization solver on board to solve nurse scheduling problems.
  Click here for benchmark test results.
 There is no limit to the number of staff, even 100 staff members, 4.09USD/month or 4.09EUR/month on Microsoft Windows Subscrptions.
You can use Up to 10 PCs simultaneously.