DEV Community

DEV Challenges

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

Posts

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
🎙️Interview Coach AI — Practice Mock Interviews Locally with Gemma 4 + Jan

Gemma 4 Challenge: Build With Gemma 4 Submission

🎙️Interview Coach AI — Practice Mock Interviews Locally with Gemma 4 + Jan

16
Comments
5 min read
I replaced 200 lines of ad-hoc state management in my Hermes agent with one object.

Hermes Agent Challenge Submission: Build With Hermes Agent

I replaced 200 lines of ad-hoc state management in my Hermes agent with one object.

3
Comments
2 min read
Gemma 4 on Android: Tricks for Faster On-Device Inference

Gemma 4 Challenge: Write about Gemma 4 Submission

Gemma 4 on Android: Tricks for Faster On-Device Inference

23
Comments 4
8 min read
What Happens When You Ask an Open-Source Agent to Do Real SRE Work on Windows? A Trajectory Worth Reading

Hermes Agent Challenge Submission: Write About Hermes Agent

What Happens When You Ask an Open-Source Agent to Do Real SRE Work on Windows? A Trajectory Worth Reading

3
Comments 1
6 min read
I changed one line in my Hermes system prompt. prompt-diff showed me exactly what.

Hermes Agent Challenge Submission: Write About Hermes Agent

I changed one line in my Hermes system prompt. prompt-diff showed me exactly what.

2
Comments
3 min read
UXRay: I Built an AI That Roasts Your UI Like a Senior Designer Would

Gemma 4 Challenge: Build With Gemma 4 Submission

UXRay: I Built an AI That Roasts Your UI Like a Senior Designer Would

5
Comments 1
4 min read
My Hermes agent ran 500 turns and cost $40 before I noticed. Now it can't.

Hermes Agent Challenge Submission: Build With Hermes Agent

My Hermes agent ran 500 turns and cost $40 before I noticed. Now it can't.

3
Comments
2 min read
Your Hermes agent's audit log is leaking customer emails. Here's a 100-line lib that fixes that.

Hermes Agent Challenge Submission: Write About Hermes Agent

Your Hermes agent's audit log is leaking customer emails. Here's a 100-line lib that fixes that.

1
Comments 2
4 min read
From HTTPS to UCP: Shopping Is About to Stop Being Your Problem

Google I/O Writing Challenge Submission

From HTTPS to UCP: Shopping Is About to Stop Being Your Problem

4
Comments
7 min read
Reviving glyph-v8: STRIDE — A Deterministic Field-Aware Integer Analyzer This is a submission for the GitHub Finish-Up-A-Thon Challenge

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

Reviving glyph-v8: STRIDE — A Deterministic Field-Aware Integer Analyzer This is a submission for the GitHub Finish-Up-A-Thon Challenge

2
Comments 1
4 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
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
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
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

5
Comments
3 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
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.