Link Case Study
LifeOS Personal Operations App
One app replacing separate todo, habit, notes, finance and vault tools, with a cross-module timeline and a today-at-a-glance view.
Problem
Personal data was spread across separate apps for tasks, habits, notes, money and secrets, with no single view of the day.
Solution
- Built one aggregation layer that serves a cross-module timeline and a today-at-a-glance view.
- Added shared workspaces where multiple users read and write scoped subsets of the same data.
- Kept private modules isolated so sharing never exposes them.
Technical Highlights
- Unified data model across five tools.
- Scoped multi-user access.
- Built end to end in TypeScript and Next.js.
Outcome
A single place to plan and review the day, with safe sharing for the parts that are meant to be shared.
TypeScriptNext.jsPostgreSQL