One thread per product. Escola: CRM for language schools (enrolments, schedules, payments, the unholy trinity of admin). Built because cousin Inês suffered visibly and I could not watch. Family-driven development (the purest methodology).
Numbers: 1,760 MRR, 22 schools, churn 1.4% (schools churn in summers, return in Septembers, seasons calendared). Killer feature: the September rush handler (200 enrolments in a week, zero spreadsheets, one calm coordinator).
Cousin review: "She reminds me she was first. The software reminds her she was right." (Inês M., first customer, finest critic.)