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DEV Challenges

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

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Gemma Guide - Real-Time Spatial Awareness for Blind Users

Gemma 4 Challenge: Build With Gemma 4 Submission

Gemma Guide - Real-Time Spatial Awareness for Blind Users

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Comments 2
5 min read
Gemma 4 Runs on a Raspberry Pi. Let That Sink In.

Gemma 4 Challenge: Write about Gemma 4 Submission

Gemma 4 Runs on a Raspberry Pi. Let That Sink In.

4
Comments
6 min read
The I/O ’26 Moment That Actually Stuck With Me

Google I/O Writing Challenge Submission

The I/O ’26 Moment That Actually Stuck With Me

8
Comments
7 min read
Google I/O 2026 quietly ended a 20-year-old web problem — meet the HTML-in-Canvas API

Google I/O Writing Challenge Submission

Google I/O 2026 quietly ended a 20-year-old web problem — meet the HTML-in-Canvas API

2
Comments
11 min read
Gemma 4 Has Four Variants. Here's How to Pick the Right One Before You Write a Single Line of Code.

Gemma 4 Challenge: Write about Gemma 4 Submission

Gemma 4 Has Four Variants. Here's How to Pick the Right One Before You Write a Single Line of Code.

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Comments 2
8 min read
Google I/O 2026 Told Me AI Can Help Learners — So I Built an Entire Skill System for My Master's Degree

Google I/O Writing Challenge Submission

Google I/O 2026 Told Me AI Can Help Learners — So I Built an Entire Skill System for My Master's Degree

2
Comments
9 min read
Why AI Agents Like Hermes Need a Semantic Execution Layer for the Physical World

Hermes Agent Challenge Submission: Write About Hermes Agent

Why AI Agents Like Hermes Need a Semantic Execution Layer for the Physical World

3
Comments
3 min read
I Built a Local Gemma 4 Reviewer for Merchant Registry Evidence

Gemma 4 Challenge: Build With Gemma 4 Submission

I Built a Local Gemma 4 Reviewer for Merchant Registry Evidence

3
Comments 1
4 min read
Datrix: Chat With Your Data Using Gemma 4 — Charts, ML Models, No Code

Gemma 4 Challenge: Build With Gemma 4 Submission

Datrix: Chat With Your Data Using Gemma 4 — Charts, ML Models, No Code

2
Comments
2 min read
Gemma 4 26B Is Not the MoE You Think It Is

Gemma 4 Challenge: Write about Gemma 4 Submission

Gemma 4 26B Is Not the MoE You Think It Is

1
Comments
8 min read
Evergreen Sentinel : Know Your Waste Laws Before You Toss It

DEV Weekend Challenge: Earth Day

Evergreen Sentinel : Know Your Waste Laws Before You Toss It

1
Comments
1 min read
Context Pointer OS: Reconstructing Memory for Long-Running AI Agents

Hermes Agent Challenge Submission: Build With Hermes Agent

Context Pointer OS: Reconstructing Memory for Long-Running AI Agents

1
Comments
3 min read
Built a 100k-Document RAG System by Hand. Hermes Read the Architecture in 47 Seconds.

Hermes Agent Challenge Submission

Built a 100k-Document RAG System by Hand. Hermes Read the Architecture in 47 Seconds.

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Comments 3
6 min read
AI-dy: On-Device Emergency First Aid with Gemma 4

Gemma 4 Challenge: Build With Gemma 4 Submission

AI-dy: On-Device Emergency First Aid with Gemma 4

2
Comments
3 min read
Daily Briefing Platform

Gemma 4 Challenge: Build With Gemma 4 Submission

Daily Briefing Platform

4
Comments
3 min read
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