Patient involvement is a complex task, maybe some help can be found here: https://www.ahrq.gov/professionals/quality-patient-safety/patient-family-engagement/index.html
For the diabetes I suggest to consider using glucometers that can automatically upload the data on the portal.
The working mechanism of the gate and the way to enter it must be clarified in order for the largest number of people infected with these diseases to contribute, and the gate should be clear and understandable ...