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

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google i/o 2026 just changed everything - here's what i learned after testing

Google I/O Challenge submission

google i/o 2026 just changed everything - here's what i learned after testing

3
Comments
4 min read
🐾 Green Paws: an Earth Day AI assistant helping dog owners go green one walk at a time

DEV Weekend Challenge: Earth Day

🐾 Green Paws: an Earth Day AI assistant helping dog owners go green one walk at a time

2
Comments
2 min read
I built GHOST — an AI agent that actually fixes your slow laptop using Gemma 4 locally

Gemma 4 Challenge: Build With Gemma 4 Submission

I built GHOST — an AI agent that actually fixes your slow laptop using Gemma 4 locally

6
Comments 4
7 min read
How i used Gemini to turn my syllabus into a planner, quiz, and mind map within 5 minutes!!!

Google I/O Challenge submission

How i used Gemini to turn my syllabus into a planner, quiz, and mind map within 5 minutes!!!

12
Comments
3 min read
Mnemonic - local-first voice notes with Gemma 4 E4B

Gemma 4 Challenge: Build With Gemma 4 Submission

Mnemonic - local-first voice notes with Gemma 4 E4B

11
Comments
7 min read
🧞‍♂️Transform unstructured PDFs Job Offers into a dataset w. gemma4:2b

Gemma 4 Challenge: Build With Gemma 4 Submission

🧞‍♂️Transform unstructured PDFs Job Offers into a dataset w. gemma4:2b

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Comments 3
4 min read
I Ran Gemma 4 on a $7/Month Server and Built an AI-Powered News Monitor That Costs $0 to Operate

Gemma 4 Challenge: Build With Gemma 4 Submission

I Ran Gemma 4 on a $7/Month Server and Built an AI-Powered News Monitor That Costs $0 to Operate

3
Comments 2
12 min read
No Internet? No Problem. How I Built a Crop Disease Detector for Rural India

Gemma 4 Challenge: Build With Gemma 4 Submission

No Internet? No Problem. How I Built a Crop Disease Detector for Rural India

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Comments 4
3 min read
Thương Hồ Protocol: Eliminating Digital Pollution with $O(1)$ Statelessness & Maritime Wisdom

DEV Weekend Challenge: Earth Day

Thương Hồ Protocol: Eliminating Digital Pollution with $O(1)$ Statelessness & Maritime Wisdom

4
Comments 4
3 min read
How to measure prompt cache hit ratio in your Hermes Agent

Hermes Agent Challenge Submission

How to measure prompt cache hit ratio in your Hermes Agent

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Comments 2
4 min read
The End of Renting Intelligence? Why Gemma 4 Makes Local AI Feel Viable

Gemma 4 Challenge: Write about Gemma 4 Submission

The End of Renting Intelligence? Why Gemma 4 Makes Local AI Feel Viable

9
Comments 1
5 min read
Everyone's Talking About Bigger AI Models. I Built a Gemma 4 Farm Doctor That Works When the Internet Doesn't.

Gemma 4 Challenge: Build With Gemma 4 Submission

Everyone's Talking About Bigger AI Models. I Built a Gemma 4 Farm Doctor That Works When the Internet Doesn't.

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Comments 2
6 min read
I gave Gemma 4 access to my Google Drive without sending a single file to the cloud

Gemma 4 Challenge: Build With Gemma 4 Submission

I gave Gemma 4 access to my Google Drive without sending a single file to the cloud

8
Comments
6 min read
The model isn’t the hard part: the data pipeline I built to teach Gemma 4 E2B to read Indian GST invoices.

Gemma 4 Challenge: Write about Gemma 4 Submission

The model isn’t the hard part: the data pipeline I built to teach Gemma 4 E2B to read Indian GST invoices.

1
Comments 1
7 min read
How I Connected Hermes Agent to My Next.js App (And Why It's Not Just Another Chatbot Wrapper)

Hermes Agent Challenge Submission

How I Connected Hermes Agent to My Next.js App (And Why It's Not Just Another Chatbot Wrapper)

2
Comments
9 min read
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