TaskFlow

Overview

TaskFlow is a kanban board built for small teams that need to coordinate work without the overhead of heavier project-management tools. Cards update in real time across every connected client, so there is never a stale view of the board.

What I built

• Real-time sync over WebSockets, with optimistic UI updates and automatic reconciliation when the server confirms a change.
• Drag-and-drop columns and cards with smooth reordering and persistence.
• Keyboard-first navigation — every common action has a shortcut, so power users rarely touch the mouse.
• A Node.js + PostgreSQL backend exposing a typed REST API, with row-level ownership checks on every mutation.

Challenges

The hardest part was conflict resolution: when two people move the same card at once, the UI needs to feel instant while staying consistent. I solved this with optimistic updates keyed by a client-generated operation id, then reconciling against the authoritative ordering the server broadcasts back.

Outcome

The project taught me a lot about real-time state, and it is the piece I most enjoy demoing — watching two browser windows update in lockstep still feels like magic.