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FitGuru: Building a Private, On-Device AI Workout Coach in Kotlin(Multimodel AI)
published: false description: "We built a phone-side workout coach at Innovhacks 4.0 - MediaPipe...
Source: DEV Community
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Normalization vs denormalization in a real Postgres schema: what I fixed, and the copy I kept
If you own a product, you should know it all the way down. In many products, the database is the main...
Source: DEV Community
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Replit App Not Working? Why It Breaks After You Publish, and How to Fix It
Replit app not working after publishing, showing a blank page or a disabled database? What 296 real reports show breaks in production, and how to fix each one.
Source: DEV Community
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Touch Grass, Babu: I Built an Offline AI Mom Who Locks Your Apps Until You Touch Grass
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Your screen...
Source: DEV Community
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Benchmarking Frontier AI on Curved Tire Sidewall OCR
This is a submission for the Kaggle Benchmarking Challenge What I Benchmarked In...
Source: DEV Community
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LORE WALK: I built an app that wants you to put it away
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass ...
Source: DEV Community
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Paper Trail: Gemma writes my neighbourhood into a paper zine, so my phone can stay home
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Most "go...
Source: DEV Community
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What LLMs 'Know' That You Don't Know They Know: Stop Inventing Prompt DSLs and Ride 50 Years of Unix Pre-Training Gravity
Why did a 1976 Makefile (Part 3.6) and a 1983 Unix init.d directory (Part 3.7) outperform 2,000 lines of English prompt rules? Because prompt engineering is static symbol linkage against 50 years of pre-trained computer science canon.
Source: DEV Community
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My Release Pipeline Refused to Ship My Release. It Was Right.
I pushed the v0.2.0 tag. The release workflow built the wheel, generated the SBOM, wrote the...
Source: DEV Community
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The Missing Piece: Why AI Models Hallucinate Answers When They Should Abstain
This is a submission for the Kaggle Benchmarking Challenge "The answer isn't always there. Does...
Source: DEV Community
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Does your coding agent understand you in your native language?
This is a submission for the Kaggle Benchmarking Challenge What I Benchmarked I build AI...
Source: DEV Community
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AI Agents Are Not Users: Building an Identity Model That Reflects That
In April 2026, an AI coding agent deleted the entire production database of PocketOS, a B2B platform...
Source: DEV Community
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theAuth Audit Trails: Compliance Logging for AI Agent Actions
theAuth is open-source auth for AI agents and humans. Star the repo on GitHub · Read the docs · Run...
Source: DEV Community
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theAuth for AI Agents: Identity and Scoped Permissions
theAuth is open-source auth for AI agents and humans. Star the repo on GitHub · Read the docs · Run...
Source: DEV Community
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🌿 TrailMates: Less Scrolling, More Wandering | Open-Weight AI for Touching Grass
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass. 🌿...
Source: DEV Community
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theAuth Guide: Cap Agent Spend and Require Human Approval
theAuth is open-source auth for AI agents and humans. Star the repo on GitHub · Read the docs · Run...
Source: DEV Community
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🌲 OUTSIDE: The Screen-Free Outdoor Exploration
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass What if AI...
Source: DEV Community
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How to Make Playwright Autonomous (Without Letting an AI Agent Run Wild)
Playwright is very good at following instructions. Tell it to click a button, it clicks the button....
Source: DEV Community
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A hash chain proves the ordering. Four attacks prove it's not enough.
Randal L. Schwartz published a gate-attack catalog built from real failures. I replayed it against my reconciliation layer as a test suite. The score, not the slogan.
Source: DEV Community
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Buy This, Not That, Drop This There” - I Made It Make Sense
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass The...
Source: DEV Community
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"\"You Played Like Prime Okocha\": The Open-Source AI That Gets My Football Crew Off the Couch"
## "Ball this weekend?" 💬 … seen by 14 Every football crew has this group chat. Someone asks on...
Source: DEV Community
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TrailWhisper: Keep Eyes on the Canopy. Phone in the Pocket.
An offline-first, zero-screen nature trail audio AI companion built for Hacktoberfest 2026 Week 1 Touch Grass Challenge.
Source: DEV Community
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Let an AI Agent Deploy Safely: A Scoped MCP Server With an Audit Trail
Let an AI Agent Deploy Safely: A Scoped MCP Server With an Audit Trail Handing an AI agent...
Source: DEV Community
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RevSofia, a Car Meetup app that people will love to use
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass ...
Source: DEV Community
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My coding agents now have a remote Mac
My agents already worked remotely on Linux. I added a macOS node for iOS builds, simulator tests, and...
Source: DEV Community
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SafeAir Walk: Find Your Clean-Air Window to Step Outside Today
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass ...
Source: DEV Community
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Moss: a tiny AI desk companion that makes you go outside and touch grass
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass ...
Source: DEV Community
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Canopy: Offline Bird Detection for 6,000+ Species with open Birdnet model
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass. ...
Source: DEV Community
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Gone for Good? I asked 10 models which deleted data could actually be restored
This is a submission for the Kaggle Benchmarking Challenge TL;DR. I gave 10 models 18 matched pairs...
Source: DEV Community
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I Set a Trap and Even Frontier Models Fell For It
This is a submission for the Kaggle Benchmarking Challenge What I...
Source: DEV Community
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Frostline: what to plant this week, from your local frost dates
A garden planner that predicts your local frost dates with an open tabular model, TabPFN, then writes the plan with Gemma. What to sow this week, from your own frost dates.
Source: DEV Community
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I wanted to read more of DEV.to. So I built it into my New Tab
Sometimes the best article you read is the one you weren't looking for. You open a new tab to look...
Source: DEV Community
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AI APIs with .NET
AI APIs with .NET A deep-dive walkthrough of calling hosted AI models from .NET — covering...
Source: DEV Community
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Tripo AI Skull Review 2026: 1,157 Sliver Faces From Fake Wood Grain
Independent review: both products were tested on my own accounts \u2014 free where offered and paid where not \u2014 with no vendor-provided access.
Source: DEV Community
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How to Build a Competitive Intelligence Agent for Public Companies
Day 10 of 30 Days of Search. Most competitor research breaks in the same place: it finds a few...
Source: DEV Community
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I Measured My RAG Pipeline Honestly. It Was 40x Slower Than I Thought.
A few days ago I published the architecture behind Vicquant’s RAG Vault; a 9-stage retrieval pipeline...
Source: DEV Community
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How Do We Extract the “Why” from a PR into a CHANGELOG with Jev? 🤔
Hoi hoi! 👋 I'm @nyaomaru, a frontend engineer currently building an AI-assisted CHANGELOG generator...
Source: DEV Community
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12 of 13 AI models knew the new name and still wrote the old one
This is a submission for the Kaggle Benchmarking Challenge What I Benchmarked TL;DR. I...
Source: DEV Community
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Does AI Lie More in Hinglish? I Benchmarked 5 Models published: false
This is a submission for the Kaggle Benchmarking Challenge What I Benchmarked I'm from...
Source: DEV Community
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Our AI Coding Agent Burned Real Money Fixing a Bug a Human Would Have Caught in Five Minutes
This is a cost pattern that's showing up across teams adopting autonomous coding agents in almost the...
Source: DEV Community