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DEV Challenges

This is the official tag for submissions and announcements related to DEV Challenges.

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Why Vector Search Breaks Production: Building a 2-Hop Relational Context Engine in Sanity

Sanity Challenge Path Two Submission

Why Vector Search Breaks Production: Building a 2-Hop Relational Context Engine in Sanity

15
Comments
4 min read
The AI Was Right. The Answer Was Still Wrong.

The AI Was Right. The Answer Was Still Wrong.

5
Comments 1
3 min read
Invisible Neighbors: An AI Field Notebook for the Sounds Around Us

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

Invisible Neighbors: An AI Field Notebook for the Sounds Around Us

2
Comments 4
4 min read
The live realtor model passed. The goodbye failed. published: true

Kaggle Benchmarking Challenge Submission

The live realtor model passed. The goodbye failed. published: true

1
Comments 2
3 min read
Suniye: let my parents hear the message themselves

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Suniye: let my parents hear the message themselves

43
Comments 3
7 min read
BlindWalk: Keep Your Phone in Your Pocket — A Screenless Spatial Audio Navigator for Touching Grass

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

BlindWalk: Keep Your Phone in Your Pocket — A Screenless Spatial Audio Navigator for Touching Grass

10
Comments 2
8 min read
Hacktoberfest 2026 DEV Challenges: Five Challenges, One Prompt, a New Theme Every Week

Hacktoberfest 2026 DEV Challenges: Five Challenges, One Prompt, a New Theme Every Week

74
Picked as gem Comments 8
6 min read
Golden Hour Catcher

Golden Hour Catcher

Comments
3 min read
GET OUT — An AI Assistant That Wants You to Stop Using It

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

GET OUT — An AI Assistant That Wants You to Stop Using It

1
Comments
3 min read
Never Stranded Again: How I Built an Edge AI Bus Guardian for My Friend Tejas Using TabPFN & SerpApi

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Never Stranded Again: How I Built an Edge AI Bus Guardian for My Friend Tejas Using TabPFN & SerpApi

37
Comments 8
8 min read
Detour: My Open-Source AI Entry for the Touch Grass Challenge (Challenge Week 1: Touch Grass)

Hacktoberfest: Maintainer Spotlight

Detour: My Open-Source AI Entry for the Touch Grass Challenge (Challenge Week 1: Touch Grass)

Comments
2 min read
I tested 11 AI models on Indian GST, UPI and lakh-crore. Three famous ones got Puducherry wrong.

Kaggle Benchmarking Challenge Submission

I tested 11 AI models on Indian GST, UPI and lakh-crore. Three famous ones got Puducherry wrong.

1
Comments 2
4 min read
Trail Notebook: Birding Offline with BirdNET and Gemma

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

Trail Notebook: Birding Offline with BirdNET and Gemma

Comments
2 min read
Count It or Compute It: When a Tool Returns Rows, the Models That Count Them Right Spend the Tokens

Kaggle Benchmarking Challenge Submission

Count It or Compute It: When a Tool Returns Rows, the Models That Count Them Right Spend the Tokens

15
Comments 7
10 min read
Aerie Meets Sanity Context: A Ledger-Native Bridge Between an Offline Cognitive System and a Live Knowledge Base

Aerie Meets Sanity Context: A Ledger-Native Bridge Between an Offline Cognitive System and a Live Knowledge Base

4
Comments 2
5 min read
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