These are the unglamorous builds that save the most hours: invoices that print, stock that counts down, results that check themselves.
Student enters roll and registration, sees the result. Handles the traffic spike on result day without falling over.
Bill a customer, stock goes down, dues are tracked. For shops still doing this in a paper khata.
Same three steps as everything else, because the hard part is not the code — it is knowing which field you actually need.
A photo of the khata, the Excel file, or the WhatsApp thread you keep scrolling. That is the spec.
One screen that does the one job. If a field is not used daily, it is not in v1.
Then we add what you missed. The build is yours, the data is yours, nothing is locked.