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Post-It

AR sticky notes for real-world exploration

Hack the North Semi-Finalist Submission of Hack the North 2025

Overview

An AR experience that turns the real world into a digital bulletin board. Place virtual sticky notes anywhere, leave messages for others to discover. Your thoughts become part of the physical space.

Inspirations

We wanted to bring back the joy of exploring. Turn everyday spaces into a shared, interactive canvas. Make city exploration fun, social, and personal again.

Features

  • Place Notes: Tap anywhere to anchor a sticky note to that location
  • AI-Generated Icons: Gemini AI converts your voice message to appropriate prompts, which is passed to Snap3D API to generate symbolic 3D models
  • Interactive Discovery: Through the lens, users can find and read notes left by others
  • Toggle View: Switch between symbolic icons and full note text, fully controllable by hand gestures

Tech Stack

Snap Lens Studio, TypeScript, Gemini AI, Snap3D API, Spectacles Interaction Kit

Quick Start

Prerequisites

Note

Requires Snap Spectacles (might not be publicly available yet)

  • Snap Spectacle Lenses (currently unreleased)
  • Snap Lens Studio v5.12 (do NOT use v5.13)
  • Snap Spectacles App installed on your phone

Setup

  1. Clone this repository
  2. Open the projects under the app folder in Snap Lens Studio
  3. Power on the Snap Spectacles and connect to your phone
  4. Send the lenses in Lens Studio to your Spectacles

See More About Post-It πŸ‘‡

About

πŸ”Ž AR for spectacle lens, sticky notes that turn real-world spaces into a shared, discoverable canvas.

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