MFKAPPS 4 min read
Building OldSchool's adherence calendar: turning dose taps into a day you can trust
A monthly adherence calendar looks like a single colored dot per day. Here's the event model, the day-status rules, and the on-time math behind it, on-device.
#android
#engineering
#room
MFKAPPS 5 min read
Building Granyn: a budget tracker with no bank login, in three tables
How Granyn tracks spending across currencies and catches recurring bills without linking a single bank account — the Room schema and the trade-offs behind it.
#android
#engineering
#privacy
MFKAPPS 7 min read
Local-first Android in 2026: SQLite, Room, and keeping user data on the device
A 2026 guide to building local-first Android apps with Room and SQLite — schema design, migrations, WAL, exports, and when (and when not) to add sync.
#android
#engineering
#privacy