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DEV Challenges

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

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Building ScopeKernel: An offline AI tool to catch unbilled scope creep in freelance chats

Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸

Building ScopeKernel: An offline AI tool to catch unbilled scope creep in freelance chats

5
Comments
5 min read
FarbeDex: a colour picker that only works outside (and never needs the internet)

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

FarbeDex: a colour picker that only works outside (and never needs the internet)

32
Comments
7 min read
Congrats to the DEV Weekend Challenge: Dog Days Edition Winners!

Data analysis dispels black dog syndrome myth

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

81
Comments 36
3 min read
I walked an hour for 30 cents: Gemma plans litter walks that end at a deposit machine

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

I walked an hour for 30 cents: Gemma plans litter walks that end at a deposit machine

24
Comments 2
17 min read
"we should go out this weekend": I built a Discord member that holds the clock until we're outside

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

"we should go out this weekend": I built a Discord member that holds the clock until we're outside

9
Comments 2
12 min read
SideHustle

Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸

SideHustle

5
Comments
4 min read
I built an offline review-reply concierge for my family's hotel — €0 per reply, five languages, no cloud

Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸

I built an offline review-reply concierge for my family's hotel — €0 per reply, five languages, no cloud

Comments 2
4 min read
Study Buddy

Study Buddy

Comments
4 min read
Chadodoro: The Stoic GigaChad Pomodoro Coach That Forces You to Touch Physical Grass

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

Chadodoro: The Stoic GigaChad Pomodoro Coach That Forces You to Touch Physical Grass

12
Comments 4
5 min read
I Poisoned One Test Per Problem. The Best Models Noticed, Then Made It Pass Anyway.

Kaggle Benchmarking Challenge Submission

I Poisoned One Test Per Problem. The Best Models Noticed, Then Made It Pass Anyway.

2
Comments 2
9 min read
TrailSafe: How Open-Source AI Rescues Solo Hikers When Cell Signal Dies 🏔️

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

TrailSafe: How Open-Source AI Rescues Solo Hikers When Cell Signal Dies 🏔️

28
Comments 2
7 min read
Mind the Gap, Then Measure It

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

Mind the Gap, Then Measure It

6
Comments 2
11 min read
Building a Local AI-Powered Receipt Sorter with Tiger Cloud and MCP for Freelancers

Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸

Building a Local AI-Powered Receipt Sorter with Tiger Cloud and MCP for Freelancers

Comments
2 min read
KadeQuote — Local-First AI Quotation Maker with Ollama & Gemma 3 1B | Hacktoberfest 2026

Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸

KadeQuote — Local-First AI Quotation Maker with Ollama & Gemma 3 1B | Hacktoberfest 2026

1
Comments
6 min read
tierwatch: Gemma 4 reads the free-tier pages I depend on, and has to quote every number

Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸

tierwatch: Gemma 4 reads the free-tier pages I depend on, and has to quote every number

2
Comments 4
7 min read
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