DEV Community • 2026-07-30 12:14

The 300px Canvas Bug That Shrunk My React Image Editor

This is a submission for DEV's Summer Bug Smash: Clear the Lineup powered by Sentry. Project Overview I am building a browser-based text removal workspace where a user uploads an image, paints over unwanted text or objects, and sends the resulting mask to an image-editing pipeline. The mask editor uses three stacked <canvas> elements: a base canvas for the uploaded image; an o...

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Hacker News: Front Page • 2026-07-30 12:14

How Old Is Ann?

Article URL: https://quuxplusone.github.io/blog/2026/07/29/how-old-is-ann/ Comments URL: https://news.ycombinator.com/item?id=49108971 Points: 6 # Comments: 0

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Hacker News: Front Page • 2026-07-30 12:13

What it means for an API to be RESTful

Article URL: https://en.andros.dev/blog/9761fd2e/what-it-means-for-an-api-to-be-restful/ Comments URL: https://news.ycombinator.com/item?id=49108966 Points: 7 # Comments: 2

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Hacker News: Front Page • 2026-07-30 12:13

CosmosEscape: Taking over Every Database in Azure Cosmos DB

Article URL: https://www.wiz.io/blog/cosmosescape-taking-over-every-database-in-azure-cosmos-db Comments URL: https://news.ycombinator.com/item?id=49108963 Points: 5 # Comments: 1

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DEV Community • 2026-07-30 12:05

Emergent Design & Gall's Law: When Complex Coding Problems Dissolve Instead of Being Solved

I recently read an article by the main maintainer of InversifyJS describing the journey of rebuilding its dependency resolution algorithm. What caught my attention wasn't the performance improvements or the technical details. It was something much more familiar. As I was reading, I realized they were experiencing the exact same phenomenon I had experienced years ago while creating InversifyJS. It...

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Real Python • 2026-07-30 12:02

Quiz: NumPy Tutorial: Your First Steps Into Data Science in Python

Test your NumPy knowledge of arrays, axes, broadcasting, indexing, masks, and data types, the foundation of data science in Python.

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DEV Community • 2026-07-30 12:02

How to store AI-generated images per user in object storage and delete the old ones

Use one key prefix per user, delete from the application every key you can name, and leave lifecycle rules to sweep the old temporary images nobody will ever ask for again. That's the whole design, and I've watched teams get it wrong in the same two ways for years: they either try to make the storage layer clever enough to know what a user is, or they hand the entire deletion problem to a lifecyc...

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DEV Community • 2026-07-30 12:02

How to Catch AI Hallucinations: A Copy-Paste Hallucination Checker Prompt (Tested)

You ask an AI a question. It answers in fluent, confident prose — complete with a study, a percentage, and a name. Some of it is wrong, and nothing about the wording tells you which part. That's the whole problem with hallucinations: the errors wear the same suit as the facts. The fix is not "trust it less" in some vague way. The fix is a repeatable audit step between AI wrote it and I used it. B...

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DEV Community • 2026-07-30 12:01

Top AI Papers on Hugging Face - 2026-07-30

10 paper AI nổi bật nhất trên Hugging Face hôm nay: robot thời gian thực, agentic search, coding agents và học tăng cường thế hệ mới Hôm nay, top paper được upvote cao trên Hugging Face cho thấy một bức tranh rất rõ về hướng đi của AI hiện tại: AI đang rời khỏi các benchmark tĩnh để tiến vào thế giới hành động thực tế — robot phải chạy nhanh hơn, agent phải tìm tài liệu tốt hơn, coding ...

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Hacker News: Front Page • 2026-07-30 12:01

Mbodi AI (YC P25) Is Hiring Robotics/Research Engineers

Article URL: https://www.ycombinator.com/companies/mbodi-ai/jobs Comments URL: https://news.ycombinator.com/item?id=49108840 Points: 0 # Comments: 0

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DEV Community • 2026-07-30 12:01

Why Your AI Agents Need Finite State Machines: Building Deterministic Workflows in a Vibe-Coding World

Originally published on tamiz.pro. The rise of "vibe coding" has democratized software development, allowing developers to build complex applications using natural language prompts. However, this same flexibility introduces a fundamental challenge for enterprise-grade AI agents: non-determinism. When you ask an LLM to "handle this customer support ticket," the model might draft an email, query a ...

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DEV Community • 2026-07-30 12:01

Build a Local LLM Chatbot with Ollama and Python

Build a Local LLM Chatbot with Ollama and Python tags: python, ai, llm, tutorial tags: python, ai, llm, tutorial Build a Local LLM Chatbot with Ollama and Python Imagine typing a question into your chatbot and getting a response in milliseconds, completely offline, with zero data leaving your machine. No API keys, no monthly subscription fees, and no privacy concerns ...

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DEV Community • 2026-07-30 12:00

How to Earn $10k+/Year from Bug Bounties

How to Earn $10k+/Year from Bug Bounties tags: security, bugbounty, money, hacking How to Earn $10k+/Year from Bug Bounties: A Practical Roadmap You’ve seen the headlines: hackers finding critical flaws in billion-dollar companies and getting paid $50,000 for a single report. It looks like a magic trick, but it’s actually a skill you can build. The truth is, earning $10,0...

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DEV Community • 2026-07-30 12:00

Build a Dependency Vulnerability Scanner with Python

Build a Dependency Vulnerability Scanner with Python tags: python, security, devops, tools tags: python, security, devops, tools Build a Dependency Vulnerability Scanner with Python Your requirements.txt looks clean, but one of those dependencies might be a ticking time bomb waiting to expose your users to a data breach. You don’t need to wait for a security audit to ...

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DEV Community • 2026-07-30 12:00

Python Itertools: 10 Tricks for Cleaner Code

Python Itertools: 10 Tricks for Cleaner Code tags: python, programming, tips, tutorial tags: python, programming, tips, tutorial Python Itertools: 10 Tricks for Cleaner Code You’ve probably written a loop that felt like it was dragging your code into the mud. Maybe you concatenated lists with +, zipped mismatched iterables and lost data, or manually tracked indices to...

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Pokémon Emerald [tif]
remy sharp's b:log • 2026-07-30 12:00

Pokémon Emerald [tif]

Similar to the Pokemon Yellow recently, I had a GBA Emerald Green sent in for repair. Just 24 hours ago, this was going to be a post on how I had failed to repair it, but in a last minute ditch, I managed to save it. Loading up the game resulted in nothing, and opening the shell explained why. There was a lot of corrosion around the PCB, but more importantly, two of the legs on the ROM had complet...

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Use the Axe Monitor MCP integration within your preferred AI assistant to accelerate issue prioritization
Deque • 2026-07-30 11:57

Use the Axe Monitor MCP integration within your preferred AI assistant to accelerate issue prioritization

Now, by using our new Axe Monitor MCP integration within your preferred AI assistant, you can use natural language prompts to dramatically speed up the process of creating and comparing scans, prioritizing fixes, and building and delivering actionable accessibility sprint plans. The post Use the Axe Monitor MCP integration within your preferred AI assistant to accelerate issue prioritization appea...

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DEV Community • 2026-07-30 11:55

CRM for Startups: How to Build a Scalable Customer Workflow

Startups often manage their first customers through spreadsheets, email threads, messaging apps, and personal notes. That approach may work when the company has only a few leads, but it becomes difficult to maintain as the team and sales pipeline grow. A customer relationship management system, or CRM, gives a startup one place to organize contacts, record conversations, monitor opportunities, an...

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Hacker News: Front Page • 2026-07-30 11:55

Go LLM SDK for streaming, tool-calling AI backends (plus frontend React lib)

Article URL: https://github.com/grafana/ai-sdk Comments URL: https://news.ycombinator.com/item?id=49108778 Points: 12 # Comments: 0

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Personal website redesign project post: Getting started with implementing my music collection
Piccalilli - Everything • 2026-07-30 11:55

Personal website redesign project post: Getting started with implementing my music collection

We're getting close to the last part of iteration one — the skeletal build of the site. Good! I'm getting eager to get on with the design work now. For some reason, doing this series (along with being busy in general) has stifled my ability to think creatively about my site. I guess I need to get all the non-technical stuff published to let my brain fully switch. Brains are weird, man. Anyway, we...

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