DEV Community: Jem

Join the Sanity Challenge: $2,500 in prizes for FIVE winners!

Jem — Fri, 18 Sep 2026 13:00:00 +0000

We're excited to announce our newest challenge with Sanity!

The Sanity Challenge runs September 18 to October 4. Build an AI agent on structured content, or vibe-code an app with Sanity behind it. $2,500 in prizes.

New to Sanity? Sanity is the AI Content Operating System. Your content lives in the Content Lake as JSON documents, with schemas you define in TypeScript and query with GROQ. You can use Sanity to build anything that you can imagine with structured content as your starting point.

Read on to learn more.

Our Prompts

Path one: Ship an agent that queries real content

Build an agent, then point it at a Sanity Context MCP endpoint backed by a Knowledge Base. Any agent framework, hosted anywhere.

Build anything that needs an answer it can't afford to get wrong. A board game companion that knows the errata contradicts the rulebook. A better interface to your favorite open-source docs. A eurorack planner that knows what actually fits in your case. An award-travel agent that untangles which transfer partner story is current. A car repair agent? A camera gear-head compendium? The sky is the limit.

Point Sanity Context at a website, a set of files, or your own Sanity content, and it distills a navigable Knowledge Base your agent reads through MCP. Every entry stays linked to the source it came from. When two sources contradict each other, both claims surface side by side with their sources, and the decision you make carries across future builds. It all lives in your Sanity Dashboard.

Path One Submission Template

The strongest submissions will show an agent that only works because the content was structured. If a keyword search would have gotten you the same answer, aim higher.

Path two: Vibe-code something strange

Prompt your way to a working app. Any AI-native IDE, Next.js or Astro on the front, Sanity behind it.

This one is judged on the build as much as the result. How deep did you get into Sanity's features? Did you customize the interface? Build a new component to turn videos into gifs? Create a workflow that kicks off an external API call? A rough app with an honest writeup beats a polished one with three sentences.

Bonus points for reaching past the Studio. Two things we'd especially like to see prompted into existence:

App SDK: build a custom app on top of your content, with real-time data and your own interface, instead of another read-only frontend.
Workflows: model a process (content reviews, translations, and so on) as data next to the content, so an agent can move a draft forward and a person can approve it through the same transitions.

Neither is required. A submission that uses one well will stand out from a pile of blog templates.

Path Two Submission Template

One Extra Submission Requirement 📌

Every submission, both paths, needs to include your Sanity project ID or a link to a public dataset URL.

This lets the Sanity team look at how you actually modeled and used your structured content, which is a real part of judging. There's a section for it in both templates above. Submissions without it may be considered incomplete, so don't skip it.

Judging Criteria

Path one: Ship an agent that queries real content submissions will be evaluated for:

Meaningful use of Sanity Context and structured content
Technical implementation and code quality
Use of Knowledge Bases
Usability

Path two: Vibe-code something strange submissions will be evaluated for:

Quality and honesty of the build process writeup
Functionality of the finished app
Thoughtfulness of the schema behind it
Creativity and originality

Prizes 🏆

Three winners from Path one, "Ship an agent that queries real content," will receive:

$500 USD cash prize
DEV++ Membership
Exclusive DEV Badge

Two winners from Path two, "Vibe-code something strange," will receive:

$500 USD cash prize
DEV++ Membership
Exclusive DEV Badge

All participants with a valid submission will receive a completion badge on their DEV profile.

How To Participate

Publish a post on DEV using the prompt submission templates above and be sure to include the required challenge tag: #sanitychallenge. You may submit to both paths, but you must create a separate post for each.

If your app requires logging in, please provide testing credentials in your submission and/or instructions on how to best test your application for judges.

Optional but encouraged: embed your agent session. Upload a transcript from Claude Code, Gemini CLI, Codex, GitHub Copilot CLI, or Pi, curate or slice the parts worth showing, and drop it straight into your post. It beats a screenshot, and for Path two it's the most direct way to show your work.

Jonathan Gottfried for The DEV Team

Mar 4

Share, Embed, and Curate Agent Sessions on DEV [Beta]

#ai #forem #devto #gemini

3 min read

Head to the Agent Sessions uploader to get started. Two things to remember: uploads are unlisted by default, so use the Make Public button or judges won't be able to open your session. And check your transcript for keys and sensitive data before publishing. There's a redaction layer, but it won't catch every edge case.

Please review our judging criteria, rules, guidelines, and FAQ page before submitting so you understand our participation guidelines and official contest rules such as eligibility requirements.

Getting Started With Sanity 🚀

Sanity Context: required reading for the agent path
Day One with Sanity: the guided course, start here if you're new
Sanity docs: schemas, GROQ, Studio
Workflows: AI content pipelines, coordinated releases, and more
Knowledge Bases: getting started with Knowledge Bases
App SDK: for the bonus path
Framework quickstarts: Next.js, Astro, Nuxt, React Router
Sanity Discord: the Sanity team is in there, including a #mcp-server channel

Important Dates

September 18: Sanity Challenge begins!
October 4: Submissions due at 11:59 PM PDT
October 22: Winners Announced

We can't wait to see what you build. Questions about the challenge? Drop them in the comments below.

Good luck and happy coding!

Congrats to the DEV Weekend Challenge: Dog Days Edition Winners!

Jem — Thu, 17 Sep 2026 20:22:43 +0000

The results are in for our DEV Weekend Challenge: Dog Days Edition! Thank you for your patience while we worked through judging, and thank you for the volume and quality of what you sent us.

We asked you to build something for, about, or inspired by dogs ahead of International Dog Day. What came back was even cuter than expected: from an OS for dogs to several canine translators and a wide array of doggie dashboards. We had so much fun going through your submissions.

Now, let's celebrate our winners!

🎉 Congratulations To…

Overall Winner

DEV Weekend Challenge: Dog Days Edition Submission 🐕

JonathanSolvesProblems

Aug 16

Everyone Believes Black Dogs Get Left Behind. I Checked 99,916 Shelter Records. They Don't.

#showdev #weekendchallenge #snowflake #elevenlabs

13 min read

@jonathansolvesstuff built a live board of every dog at Austin Animal Center with an intake record and no outcome record. After looking at the data, they concluded that "black dog syndrome" turned out to be a false flag. What sealed it for us was not only the care taken with the build, but also the thoughtful analysis of the data.

Best Use of Snowflake

DEV Weekend Challenge: Dog Days Edition Submission 🐕

Soumyadeep Dey

Aug 16

Your Dog Can't Tell You Where It Hurts. MATCH_RECOGNIZE in Snowflake Can.

#devchallenge #weekendchallenge #snowflake #ai

25 min read

@soumyadeepdey and @dronzer2code set out to catch a limp that a dog can't tell you about, using ten million rows of collar data from a wearable sensor. The trick is that a limp isn't one number going up, it's a pattern over time: walk, stop, walk a little, stop again, and averaging the day away erases exactly that pattern. He used Snowflake to search for that exact sequence directly in the data and pull out the specific seconds that gave it away, so every result comes with evidence attached.

Best Use of Solana

DEV Weekend Challenge: Dog Days Edition Submission 🐕

Kanak Waradkar

Aug 16

ChainPaws — Stopping Lost Pet Scams with Solana Escrow & Tamper-Proof Registries 🐕🐾

#weekendchallenge #devchallenge #solana #gemini

8 min read

@kakeroth built ChainPaws to fix a genuinely rotten problem: when your dog goes missing, most of the "I found him!" messages you get are scammers trying to extort a reward. ChainPaws puts your dog's ID and the reward money on the Solana blockchain instead, so the payout only goes through once someone actually proves they found your dog, no wire transfers to strangers required. It's a real working smart contract with tests to back it up, not just a mockup of the idea.

Best Use of ElevenLabs

DEV Weekend Challenge: Dog Days Edition Submission 🐕

Abeera Lodhi

Aug 17

The Waiting Room: I generated a voice for eight shelter dogs from their own paperwork

#devchallenge #weekendchallenge #elevenlabs #dogdays

11 min read

@abeera_lodhi took eight real shelter listings and had ElevenLabs read each one twice: once in a cheerful stock voice, and once in a voice built from scratch to match what's actually in that dog's file. Flip between the two mid sentence and you hear the gap between the marketing and the dog. A genuinely novel use of Elevenlabs technology, where abstract data manifests in something you can hear.

Best Use of Google AI

DEV Weekend Challenge: Dog Days Edition Submission 🐕

krishaant S.H

Aug 17

Fetch'd: It's Tinder, except the dog can reject you too

#devchallenge #weekendchallenge #ai

7 min read

@vikram003 built Fetch'd, a swipe app for shelter adoptions with a twist: the dog gets a say too, not just the human. Gemini does two jobs behind the scenes, reading a scanned vet intake form into usable info, then comparing that against what an adopter says about their home to write one honest sentence about whether it's a good fit. No score, no percentage match, just a real observation, or a question back to you if there isn't enough info yet to say anything useful.

Prizes

All five winners will receive:

$200 USD
DEV++ Membership
Exclusive winner badge

All participants with a valid submission will receive a completion badge on their DEV profile.

What's Next?

Two new challenges are on the way! Register for both so you don't miss the official announcements.

The Sanity Challenge runs September 18 to October 4. Build an AI agent on structured content, or vibe-code an app with Sanity behind it. $2,500 in prizes. New to Sanity? Sanity is the AI Content Operating System. Your content lives in the Content Lake as JSON documents, with schemas you define in TypeScript and query with GROQ. You can use Sanity to build anything that you can imagine with structured content as your starting point.

Signed Up Sign Up Sign Up

We are thrilled to partner with Kaggle to bring the community a new challenge! Stay tuned by signing up so you don't miss the official announcement.

Signed Up Sign Up Sign Up

A Quick Update on the Summer Bug Smash Winners

Jem — Thu, 17 Sep 2026 16:21:59 +0000

Hey all, we have a quick update for everyone who participated in DEV's Big Summer Bug Smash powered by Sentry.

We need a bit more time to carefully review all of your fixes and optimizations. With 23 winners across 5 categories this is no simple feat, and we want to make sure we give each entry the careful consideration it deserves.

We'll be back with the winner announcement on September 24. Thank you so much for your patience, and for putting so much effort into your submissions.

In the meantime, two new challenges are on the way!

We are thrilled to partner with Sanity to bring the community a new challenge! Stay tuned by signing up so you don't miss the official announcement.

Signed Up Sign Up Sign Up

We are thrilled to partner with Kaggle to bring the community a new challenge! Stay tuned by signing up so you don't miss the official announcement.

Signed Up Sign Up Sign Up

DEV Weekend Challenge: Dog Days Edition Winner Announcement Delayed

Jem — Thu, 10 Sep 2026 18:24:08 +0000

Hey all, we have a quick update for everyone who participated in the DEV Weekend Challenge: Dog Days Edition.

We are having a blast looking through your submissions, we just need a little more time to make a decision. We'll be back with the winner announcement next week.

Thank you so much for your patience, and for putting so much effort into your builds.

In the Meantime

We have two new challenges on the way, and you can register on either page now to get updates the moment they launch:

Sanity Challenge, launching September 16
Kaggle Challenge, launching September 23

Hit register on both so you don't miss the official announcements!

Congrats to the Frontend Challenge: Comfort Food Edition Winners!

Jem — Thu, 10 Sep 2026 18:23:05 +0000

We are so excited to announce the winners of our Frontend Challenge: Comfort Food Edition!

This challenge asked you to put the food that means something to you on the web, and the range of what came back was wonderful. Imaginary restaurants, overflowing noodle bowls, and regional dishes were the spotlight. We saw into the depths of your CSS refrigerators, and scrolled landing pages that made our mouths water. These projects were built with real care for accessibility, and your write-ups were as generous with what went wrong as with what went right.

Thank you to everyone who participated. Reading through these submissions was a genuine pleasure.

Now, let's celebrate our winners!

🎉 Congratulations To…

CSS Art Winner

Frontend Challenge CSS Art Submission 🍲🥧

Jessica Doering

Aug 10

Kitty Cafe, a whole bakery drawn in CSS 🐱🍰

#frontendchallenge #devchallenge #css #codepen

7 min read

@sizzlebop drew an entire bakery in CSS, and then made every single thing in the case a cat. A macaron with ears, a matcha cupcake, a taiyaki, a paw print cookie, a donut with far too many sprinkles, and a whole kitty cake on the shelf that you have to order 48 hours in advance.

No images, SVG, canvas, or JavaScript. "Every whisker is a div with a border radius." The shop cat wakes up when you click her and dozes off on her own, and there is a ball of yarn on the floor you can pick up and give to her, all running on checkbox state machines. The whole thing is keyboard accessible and the menu is repeated as plain text for smaller screens.

Perfect Landing Winner

Frontend Challenge Perfect Landing Submission 🍲🥧

Long Phan (Mike)

Aug 6

🥁 Mâm Cơm Landing Page: I built a Vietnamese dinner tray on a 3,000-year-old bronze drum

#devchallenge #frontendchallenge #webdev #javascript

10 min read

@minhlong2605 built Mâm Cơm, a landing page for the Vietnamese family rice tray, laid out on the face of a Đông Sơn bronze drum cast around 1000 BCE. The central tray is a spinnable lazy susan you can drag, swipe, click, or spin with the arrow keys, built as an ARIA tablist bent into a circle.

The write-up is just as thoughtfully composed as the web page. Mike walks through a contrast bug that every automated checker missed, the 3D version he built and then threw away for being a worse idea rendered better, and a handful of layout bugs that looked fine and measured wrong. We learned a lot from this one (about the code AND the food).

Prizes

Both winners will receive:

DEV++ Membership
Exclusive winner badge

All participants with a valid submission will receive a completion badge on their DEV profile.

Thanks for cooking with us 🍲

What's Next?

We have two new challenges on the way, and you can register on either page now to get updates the moment they launch:

Sanity Challenge, launching September 16
Kaggle Challenge, launching September 23

Hit register on both so you don't miss the official announcements!

Join our DEV Weekend Challenge: Generosity Edition! $1,000 in Prizes Across FIVE Winners. Submissions Due September 7 at 6:59 AM UTC.

Jem — Fri, 04 Sep 2026 02:00:05 +0000

We're back with another DEV Weekend Challenge, a short bite-sized challenge planned to fit into your weekend. We know the submission window is tight, so we've set the timing to ensure that no matter where you are in the world, you'll have the majority of your Saturday and Sunday to participate.

Our theme for this weekend is generosity, inspired by @fm’s world peace suggestion in our call-for-ideas earlier this week and the upcoming International Day of Charity happening September 5th.

We'll select one overall winner and four prize category winners who utilize a specific technology as part of their challenge submission.

Let's get to it!

Our Prompt

Build something in the spirit of generosity.

Please interpret this prompt however you'd like. A personal donation tracker? A volunteer matching tool? Something that makes a small nonprofit's day-to-day less painful? A project that raises awareness for a cause you care about? Any angle is fair game.

If you need a jumping-off point, here are a few themes shaping modern charity work that the UN highlights on their website:

Technology-driven giving: crowdfunding, mobile donations, and tools that make giving more accessible and transparent
Youth leadership: social ventures and community projects led by the people closest to the problem
Equity and inclusion: solutions that account for how race, gender, disability, and geography shape need
Ethical and accountable giving: transparency, clear reporting, and community-driven design
Climate and poverty: resilience tools for the communities hit first and hardest

You do not have to pick one of these. They're here to get you unstuck.

Prize Categories

Alongside our overall winner spot, we have four prize categories for participants who incorporate a specific technology into their project. You don't need to use any of these tools to be eligible for the overall winner spot, but if you're curious about any of the tech, this is a great excuse to give one a try.

Best use of Snowflake
Best use of Solana
Best use of ElevenLabs
Best use of Google AI

Pro Tip: since prize category winners are drawn from a smaller pool of submissions, your odds of taking home a prize are meaningfully higher.

Note: You may use multiple technologies in a single submission to qualify for multiple categories, but participants are limited to one win per challenge.

Judging Criteria

All submissions will be judged on the following:

Relevance to Theme: Does the project clearly connect to the spirit of the challenge?
Creativity: Is the concept original or is it an interesting take on a familiar problem?
Technical Execution: Is the project functional, well-built, and easy to use?
Writing Quality: Is the submission post clearly written and engaging?
Use of Prize Category Technology (optional): If pursuing a prize category, does the submission meaningfully incorporate the chosen technology?

Prizes

Five winners will each take home:

$200 USD
DEV++ Membership
Exclusive DEV badge

All participants with a valid submission will receive a completion badge.

How To Participate

Publish a post on DEV using the submission template below. Your post should give us an overview of what you made, who it's for, and a demo of your project.

Weekend Challenge Submission Template

Please review our judging criteria, rules, guidelines, and FAQ page before submitting so you understand our participation guidelines and official contest rules such as eligibility requirements.

Need Help?

Check out our official challenge page for resources to help you get started with tech from our prize category partners.

Important Dates

Launch Time: September 4, 2026 2:00 AM UTC
Submissions Due: September 7, 2026 6:59 AM UTC

Here's what that looks like across a few timezones:

Timezone	Launch Time (Local)	Submissions Due (Local)
PDT	Thursday, Sep 3 at 7:00 PM	Sunday, Sep 6 at 11:59 PM
EDT	Thursday, Sep 3 at 10:00 PM	Monday, Sep 7 at 2:59 AM
GMT	Friday, Sep 4 at 2:00 AM	Monday, Sep 7 at 6:59 AM
CEST	Friday, Sep 4 at 4:00 AM	Monday, Sep 7 at 8:59 AM
IST	Friday, Sep 4 at 7:30 AM	Monday, Sep 7 at 12:29 PM
JST	Friday, Sep 4 at 11:00 AM	Monday, Sep 7 at 3:59 PM
AEST	Friday, Sep 4 at 12:00 PM	Monday, Sep 7 at 4:59 PM

Winners will be Announced on Thursday, October 1.

Questions about the challenge? Drop them in the comments below.

Good luck!!

Another new quality moderation feature! I'm excited to see how this shifts the feed in the coming weeks

Jem — Wed, 02 Sep 2026 21:03:30 +0000

Curators get a strict daily limit of five gems

Ben Halpern for The DEV Team

Sep 2

💎 Introducing Community Gems: Celebrating Human Curation and the Best of Our Community

#meta #community #devjournal

2 min read

What should the next Weekend Challenge theme be??

Jem — Sun, 30 Aug 2026 16:07:16 +0000

The next DEV Weekend Challenge launches next week, and we have some ideas up our sleeves, but we thought crowd-sourcing the theme would be a fun way to collect ideas from the community.

What do you think the next theme should be?

Some things to keep in mind:

Themes should be globally-minded and all inclusive.
- Holiday themes are fun, but not all countries observe the same holidays
- Season specific themes are tough because they differ from region to region
Challenges should not require certain technologies or hardware. We want these events to be accessible to everyone.
Participation is always free.

Check out our past Weekend Challenges for inspiration

Now, hit us with your suggestions. Perhaps yours will be select for this next challenge or a future one!

As always, the theme will be announced when the challenge launches on September 3rd, 2:00AM UTC.

I'm excited to see your ideas!

Excited to see how this feature rolls out and evolves over time

Jem — Wed, 26 Aug 2026 20:55:11 +0000

Author leads by example using the new tag

Ben Halpern for The DEV Team

Aug 26

Introducing AI Disclosure on DEV: Tools for Nuance, Clarity, and Better Feeds

#showdev #announcements #ai #community

3 min read

DEV Community: Jem

Join the Sanity Challenge: $2,500 in prizes for FIVE winners!

Our Prompts

Path one: Ship an agent that queries real content

Path two: Vibe-code something strange

One Extra Submission Requirement 📌

Judging Criteria

Prizes 🏆

How To Participate

Getting Started With Sanity 🚀

Important Dates

Congrats to the DEV Weekend Challenge: Dog Days Edition Winners!

🎉 Congratulations To…

Overall Winner

Best Use of Snowflake

Best Use of Solana

Best Use of ElevenLabs

Best Use of Google AI

Prizes

What's Next?

A Quick Update on the Summer Bug Smash Winners

In the meantime, two new challenges are on the way!

Top 7 Featured DEV Posts of the Week

DEV Weekend Challenge: Dog Days Edition Winner Announcement Delayed

In the Meantime

Congrats to the Frontend Challenge: Comfort Food Edition Winners!

🎉 Congratulations To…

CSS Art Winner

Perfect Landing Winner

Prizes

What's Next?

Top 7 Featured DEV Posts of the Week

Join our DEV Weekend Challenge: Generosity Edition! $1,000 in Prizes Across FIVE Winners. Submissions Due September 7 at 6:59 AM UTC.

Our Prompt

Prize Categories

Judging Criteria

Prizes

How To Participate

Need Help?

Important Dates

Another new quality moderation feature! I'm excited to see how this shifts the feed in the coming weeks

Top 7 Featured DEV Posts of the Week

What should the next Weekend Challenge theme be??

What do you think the next theme should be?

Check out our past Weekend Challenges for inspiration

Excited to see how this feature rolls out and evolves over time