Productivity · $5/mo

Can I vibe code Todoist?

Capture, organize, and knock out your to-dos across every device.

🟢Yes — build itest. one sitting

A to-do list is the canonical starter app: a table of tasks with a done flag, a due date, and a project label. Todoist's genuinely nice touches — natural-language date entry ('tomorrow 5pm'), recurring tasks, keyboard-fast capture — are all things an agent adds in an afternoon. What you don't get for free is a decade of cross-platform sync polish and the offline mobile apps. For a personal system, that's a fair trade, and the $5 is easy to reclaim.

The one-shot prompt
Build me a personal task manager in the spirit of Todoist. Core loop: a quick-add box that parses natural language ('buy milk tomorrow 5pm #errands p1') into a task with a due date, project, and priority; a main list grouped by Today / Upcoming / project; and one-key actions to complete, reschedule, and edit. Support recurring tasks ('every monday'), priorities p1 through p4, and projects I manage in the UI. Use Next.js App Router with a hosted Postgres (Neon), optimistic UI so it feels instant, and keyboard shortcuts for everything. Deploy to Vercel and keep the natural-language date parser in its own well-tested module.
Paste into Claude Code, Codex, or your agent of choice — then steer. Learn the moves in Prompt Engineering.
What you build

A fast task manager with projects, due dates, priorities, natural-language quick-add, and recurring tasks, synced to a database.

What you give up
  • Native iOS/Android apps with reliable offline sync
  • The Karma gamification and productivity trends
  • The ecosystem of integrations and third-party plugins
  • Shared projects and task delegation for teams
Why people still pay

Todoist is cheap, everywhere, and never loses your data — for most people the $5 buys frictionless capture on every device they own, which is exactly where a personal build is weakest.

conveniencereliability
Related
Actually build it

A prompt is the first move, not the whole game. Course 01 teaches you to take a prompt like this one to a shipped, working app — reviewing, correcting, and steering the agent the whole way.

Start Course 01 →