Todoist is a productivity application that allows users to manage tasks and projects.
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Can I reverse engineer Todoist?
An original rebuild of a Todoist-style MVP is rated 3/5 (moderate) and would take an estimated 8–12 weeks. Hardest engineering problem: Implementing a seamless, real-time synchronization system across multiple devices with conflict resolution. Open-source projects such as Todo.txt, Taskwarrior, UpTask are a practical starting point.
◈ How you might build it
Start with the smallest useful workflow: authentication, a focused productivity experience, and persistent user data. Layer on collaboration, integrations, background processing, and production reliability as the product grows. The stack below is a suggested approach, not a verified description of Todoist's internals.
⌘ Suggested building blocks
⚑ The hardest part
↗ Open-source projects to explore
Project names are starting points, not endorsements or claims of feature parity. Check licenses before reuse.