Skip to content
Derek Fidler
← Work

Do It

P1 first. Then everything else. A priority-based task manager — and a study in calendar OAuth and Apple Watch micro-apps.

Role
AI development · Lovable → Claude Code Max
Year
2026 · ~1 month validation, ~2 weeks build
App Store
App Store
Today — ordered by priority
Today — ordered by priority
Upcoming — the week ahead
Upcoming — the week ahead
Done — a record, not a streak
Done — a record, not a streak

Do It is a focused task manager built around priorities, not endless lists. Capture in plain English ("dentist tomorrow at 2pm"), see today ordered P1 to P4, and sync across iPhone and Apple Watch. It replaced a to-do app that had quietly become a guilt machine of overdue items.

It was the project where I pushed AI development into platform territory — OAuth and a wrist-sized companion app.

From Lovable to a production build

Like Fit Habit, Do It began on Lovable — about a month of daily-use validation testing to prove the priority-first model actually changed how I worked, before committing to a real build.

Then roughly two weeks with Claude Code Max produced the shipping app: production stack — Vercel, Supabase, Sentry, PostHog — and an App Store release.

Google Calendar OAuth & Apple Watch

This one taught me Google Calendar OAuth end-to-end — consent, tokens, refresh, and a read-only calendar view inside the app — and how to build an Apple Watch micro-app with complications, so your P1 is on your wrist. Learning what AI can and can't carry across these platform boundaries was the real point.