A few settings can be customized easily by non-technical users. Click the Admin tab, and then click on either Strings or Add custom field.
Because the full source code is available to you, you can fully customize the system through custom programming through the PHP language.
To supplement the reports built into Son of Service, custom reports can be developed using any of countless SQL-based reporting systems.
Because you host the software on your own servers, security and privacy are your responsibility. You should follow good security practices such as using strong passwords, using separate logins for each volunteer coordinator, encrypting communications, and performing backups.
There is no way for the developers of Son of Service to see the information in your database.