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DEV Challenges

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

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Gemma 4 Scored 89.2% on AIME. Here's Why That Number Should Change How You Think About Open-Source AI

Gemma 4 Challenge: Write about Gemma 4 Submission

Gemma 4 Scored 89.2% on AIME. Here's Why That Number Should Change How You Think About Open-Source AI

4
Comments
5 min read
Hermes Agent vs LangChain vs CrewAI: When to Reach for Each

Hermes Agent Challenge Submission: Write About Hermes Agent

Hermes Agent vs LangChain vs CrewAI: When to Reach for Each

6
Comments
3 min read
Gemma 4's Audio and Video Inputs: A Hands-On Guide Nobody Has Written Yet

Gemma 4 Challenge: Write about Gemma 4 Submission

Gemma 4's Audio and Video Inputs: A Hands-On Guide Nobody Has Written Yet

4
Comments
5 min read
My Hermes agent called exec_shell. It shouldn't have been able to.

Hermes Agent Challenge Submission: Build With Hermes Agent

My Hermes agent called exec_shell. It shouldn't have been able to.

3
Comments
2 min read
I Built a Hermes Agent to Tell Me Which Hackathons to Enter. It Told Me to Enter This One.

Hermes Agent Challenge Submission: Build With Hermes Agent

I Built a Hermes Agent to Tell Me Which Hackathons to Enter. It Told Me to Enter This One.

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Comments 1
6 min read
I had 800 lines of Hermes agent audit log. trace-tree turned it into a tree I could read.

Hermes Agent Challenge Submission: Build With Hermes Agent

I had 800 lines of Hermes agent audit log. trace-tree turned it into a tree I could read.

2
Comments
5 min read
I built a local first AI CCTV assistant using Gemma 4 + Frigate

Gemma 4 Challenge: Build With Gemma 4 Submission

I built a local first AI CCTV assistant using Gemma 4 + Frigate

3
Comments
2 min read
AccessLens — A persistent on-device visual interpreter for the blind

Gemma 4 Challenge: Build With Gemma 4 Submission

AccessLens — A persistent on-device visual interpreter for the blind

14
Comments
4 min read
Antigravity 2.0 in one day: the four shells and what each is good for

Google I/O Writing Challenge Submission

Antigravity 2.0 in one day: the four shells and what each is good for

5
Comments
6 min read
Your Hermes agent's prompt cache is 30% hit because of one timestamp. Here's how to find it.

Hermes Agent Challenge Submission: Write About Hermes Agent

Your Hermes agent's prompt cache is 30% hit because of one timestamp. Here's how to find it.

3
Comments
4 min read
I had 3,000 agent trace events in JSONL. My manager wanted them in Excel. One line.

Hermes Agent Challenge Submission: Build With Hermes Agent

I had 3,000 agent trace events in JSONL. My manager wanted them in Excel. One line.

2
Comments
2 min read
From Half‑dead Prototype to Local‑Only AI Medical Assistant: Rewiring MedClinic with GitHub Copilot

GitHub “Finish-Up-A-Thon” Challenge Submission

From Half‑dead Prototype to Local‑Only AI Medical Assistant: Rewiring MedClinic with GitHub Copilot

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Comments 2
4 min read
Multimodal Gemma 4 Visual Regression & Patch Agent

Gemma 4 Challenge: Build With Gemma 4 Submission

Multimodal Gemma 4 Visual Regression & Patch Agent

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Comments 5
6 min read
Building FarmWise: An AI Field Advisor for Subsistence Farmers Using Gemma 4

Gemma 4 Challenge: Write about Gemma 4 Submission

Building FarmWise: An AI Field Advisor for Subsistence Farmers Using Gemma 4

4
Comments
7 min read
ErgoSafe Reborn: Scaling an Abandoned Frontend into an Enterprise OHS Engine

GitHub “Finish-Up-A-Thon” Challenge Submission

ErgoSafe Reborn: Scaling an Abandoned Frontend into an Enterprise OHS Engine

4
Comments
3 min read
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