#habits hackathon ideas

10 ideas across 6 categories · 9 beginner · 1 intermediate · 0 advanced. Sorted by judging fit (editorial estimate).

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Climate
Friends Carbon Budget Challenge
Compete with friends to stay under a weekly carbon budget
Beginner10h2–4
Next.jsFirebaseCharts
17/20
Productivity
Weekly Review Generator
Get an automatic weekly review from your calendar, tasks and commits
Beginner8h1–2
LLMCalendar APINext.js
17/20
Productivity
Intent-Gated Distraction Blocker
Before opening a distracting site, type why, and get a time box
Beginner10h1
Chrome extensionLocal storageCharts
17/20
Health
Kids Toothbrushing Timer Game
A two-minute brushing game that guides kids through every part of the mouth
Beginner6h1–2
JavaScriptMediaPipeCanvas
17/20
Gaming
Habit Pixel Pet
A pixel pet that grows when you complete your habits
Beginner8h1
PixiJSLocal storage
17/20
AI
Voice Journal with Mood Trends
Speak a two-minute journal entry and see mood and themes over weeks
Beginner10h1–2
WhisperLLMCharts
16/20
AI Agents
Flatmate Chore Rotation Agent
A chat agent assigns chores fairly, reminds people and handles swaps
Beginner8h2–4
LLMTelegram Bot APISQLite
16/20
AI Agents
Habit Tracker Agent
Keeps users consistent with light, proactive check-ins
Intermediate36h1–3
ReactLLMCron
14/20
Productivity
Focus Session Coach
Helps people do longer, calmer deep-work sessions
Beginner12h1
ReactLocal storageCharts
14/20
Health
Sleep Log Insights
Shows which habits line up with better sleep
Beginner12h1–2
ReactLocal storageCharts
14/20

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