It started with an ordinary problem. An institution wanted an alumni site. It had graduates spread across a spreadsheet, an old register and a messaging group, a committee of volunteers, and a budget that would not survive a monthly subscription. The quotes it received were priced for universities with development offices, which it did not have and never would.
So the portal was built: a directory, registration that a person approves, events with a real capacity, giving records, news, galleries and a committee page. Ordinary needs, but ones that had to work with volunteers running them and shared hosting underneath.
When others asked for the same thing, the specific version became a general one. AlumDeck is that software with the institution-specific parts taken out, an installer added so it goes onto anyone's hosting, and an admin panel over everything that used to be edited in code.
And a test that keeps it that way
Taking one institution out of a working system leaves traces, so the product's own test suite scans the code for the founding school's name, its city, its national tax clauses and its currency symbol, and fails if any of them would ship. Anything a buyer might need to change is a setting with a blank default, not an assumption.