1 Billion — a personal operating system for getting things done
A mobile-first productivity app (installable iPhone PWA) that turns long-term goals into a daily plan: an AI planning chat builds today's to-do list and schedule, syncs it two-way with Google Calendar, pulls deadlines from Canvas, and scores every week.
Live demo → 1billion.vercel.app/login: tap Try the demo for your own private sandbox, pre-filled with sample data. No sign-up needed.
Best viewed on a phone (or DevTools at iPhone size).
Why I built it
I wanted one place that connects the big goal to what I do at 9am today. Off-the-shelf tools split goals, calendar, to-dos and school deadlines across four apps. I built this for myself and use it every day on my phone.
Features
| Today | AI planner | Schedule | Goals | Skills |
|---|
| | | | |
- AI daily planning chat: describe your day in plain language; the assistant asks short follow-ups, then proposes an ordered to-do list and time blocks. Nothing is written until you confirm, and every change can be undone.
- Day schedule: a Google-Calendar-style day view with drag-to-reschedule, editable blocks, and recurring events.
- Two-way Google Calendar sync: OAuth connection; blocks push to your primary calendar and external events pull back in.
- Canvas LMS import: read-only import of course assignments; AI estimates effort, and a deterministic scheduler packs work into free time before due dates.
- Goal chain: dream → monthly → weekly goals, linked so every week rolls up to the big one.
- Weekly scorecard and review: to-dos done ÷ created, a per-day breakdown, a streak, and a review gate at the end of the week.
- Skills and focus timer: skill categories with a built-in focus session timer.
- Push notifications: Web Push to the installed iPhone app, triggered by a scheduled cron job.
Tech stack
| Layer | Tech |
|---|
| Frontend | Next.js 16 (App Router, Server Components, Server Actions), React 19, TypeScript, Tailwind CSS v4 |
| Backend / DB | Supabase: Postgres, Auth, Row-Level Security; 13 versioned SQL migrations |
| Integrations | Google Calendar API (OAuth 2.0), Canvas LMS REST API, OpenAI (structured outputs validated with Zod), Web Push (VAPID) |
| Infra | Vercel (hosting + Cron), PWA (manifest + service worker) |
| Testing | Node test runner; Postgres logic tested in-process with PGlite |
flowchart LR
iPhone[iPhone PWA / browser] -->|Server Actions| Next[Next.js on Vercel]
Next -->|RLS-scoped queries| DB[(Supabase Postgres)]
Next <-->|OAuth + sync| GCal[Google Calendar]
Next -->|read-only| Canvas[Canvas LMS]
Next -->|structured JSON| AI[OpenAI]
Cron[Vercel Cron] --> Next -->|Web Push| iPhone
Engineering highlights
- Two-way calendar sync without duplicates. Each local block maps to a Google event ID through a unique index, so pushes are idempotent upserts, and edit conflicts resolve by last-modified-wins. I tracked down a Postgres
42P10 error (an ON CONFLICT target with no matching unique index) and fixed it in a dedicated migration.
- Data isolation by default. Every table has Row-Level Security policies keyed on
auth.uid(). Only the cron job uses the service-role key, and it runs on the server only.
- Self-cleaning demo sandboxes. "Try the demo" signs each visitor in as a Supabase anonymous user. A Postgres function seeds sample data dated relative to today, refuses to run for non-anonymous accounts, and is covered by a PGlite test. The hourly cron deletes sandboxes after 24 hours, and their data cascade-deletes with them.
- Secrets encrypted at rest. Canvas access tokens are stored with AES-256-GCM, and the user ID is bound as authenticated data so a token can't be swapped between accounts (
lib/canvas-secret.ts).
- AI output is validated rather than trusted. The planner's responses are parsed against a Zod schema. Proposed blocks are confirmed through a Postgres function that rejects the draft if the calendar changed underneath it, so the AI can't silently double-book you.
- AI estimates, code schedules. For Canvas work the model only estimates effort. A deterministic, unit-tested packer (
lib/planner.ts) fits sessions around existing commitments.
- Time zones done carefully. All date logic lives in pure, tested functions (
lib/dates.ts) using date-fns-tz.
Run locally
Requires Node 20+ and a Supabase project.
npm install
cp .env.example .env.local # fill in at least the Supabase URL + anon key
npx supabase db push # apply supabase/migrations
npm run dev # http://localhost:3000
Google, OpenAI, Canvas and push features each switch on when their env vars are set (see .env.example).
Checks
npm test # unit tests (lib/*.test.ts)
npm run typecheck
npm run lint
npm run build
Install on iPhone
Open the site in Safari, tap Share, then Add to Home Screen. Launch it from the icon; iOS only allows push notifications for installed web apps.
Built by Brayden Pickard
