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DEV Community · Technology

Building Rutiq: Orchestrating the Last Mile with FastAPI, Supabase, Telegram, and Applied AI

Building Rutiq: Orchestrating the Last Mile with FastAPI, Supabase, Telegram, and Applied AI Last-mile logistics is often a silent chaos. If you look closely at the operations of many retail or shipping companies, you'll see a reality built on "trench tech": copy-pasted Excel sheets, What...

Jorge Eduardo Vazquez Trujillo 10 hours ago

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Hacker News · Technology

Show HN: Sfsym – Export Apple SF Symbols as Vector SVG/PDF/PNG

I found myself reaching for SF Symbols' 'Copy Image As…' quite often during agentic design sessions, so I made a command-line tool that the agent can use by itself. It exports Apple SF Symbols as SVG, PDF, or PNG.The vector paths come directly from macOS's symbol renderer. Internally it reaches a p...

olliewagner 10 hours ago

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DEV Community · Technology

Claude Code accounts switcher, Finally!!

Picture this. You've spent time getting Claude Code just right — your skills configured, plugins loaded, MCP servers humming. It feels good. You're productive. Then you switch accounts. Gone. All of it. I have a personal Claude account and a work one. Every switch meant re-authenticating...

Moemen Gaber 10 hours ago

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DEV Community · Technology

Building Private NFT Marketplaces on Midnight: Hidden Ownership, Anonymous Trading

Building Private NFT Marketplaces on Midnight: Hidden Ownership, Anonymous Trading NFT ownership on transparent blockchains is a surveillance tool masquerading as a cultural artifact. Every token transfer is publicly logged: who sold, who bought, for how much, and at what time. Any suffic...

Tosh 10 hours ago

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DEV Community · Technology

Private AI Inference with Midnight: Proving Model Outputs Without Revealing Inputs

Private AI Inference with Midnight: Proving Model Outputs Without Revealing Inputs Every time you send a query to a language model, a credit scoring API, or a medical diagnosis system, you're sharing your data with the service provider. For consumer applications, this is often acceptable....

Tosh 10 hours ago

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DEV Community · Technology

The Timeless Marriage: GoF Visitor, LINQ Expression Trees, and Why 30-Year-Old Patterns Still Ship Code

Patterns Don't Die — They Get Promoted to the Standard Library LINQ: Still Beautiful After All These Years The Marriage: How LINQ Queries Actually Work What Else Can This Marriage Do? HashCodeVisitor: The Simplest Visitor You'll Ever Write DeepEqualsComparer: The Kitchen Fight that Copilot Won The...

Val Melamed 11 hours ago

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DEV Community · Technology

(EDA Part-3) Univariate Analysis — Understanding Every Feature One at a Time

Part 3 of 5 — Intermediate In Part 2, we got the patient's file open. Now, it is the time for the real examination. We're going to look at each "organ"—each feature in our dataset — one by one. This is called univariate analysis, which is just a fancy term for looking at one variable at a time....

Shivappa 11 hours ago

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DEV Community · Technology

Building Stateful AI Agents with Backboard: A Complete Feature Deep Dive

The AI agents have evolved far beyond simple chatbots. They're evolving into autonomous systems capable of reasoning, remembering, retrieving knowledge, and executing actions. But building such systems from scratch? It usually means stitching together: Vector databases Memory layers Tool orchestr...

Ranjan Dailata 11 hours ago

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DEV Community · Technology

I Built a Carbon Footprint Tracker in 48 Hours — Here's How Copilot Saved Me

This is a submission for the Weekend Challenge: Earth Day Edition 🌱 What I Built I built EcoTrack Pro — a beautiful, privacy-first carbon footprint calculator that helps individuals understand and reduce their environmental impact. The problem: Most carbon calculators are either too...

HARD IN SOFT OUT 11 hours ago

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DEV Community · Technology

Examlock

ExamLock Secure exams, live classroom workflows, and real-time proctor intervention. DEMO ExamLock is more than a lock screen for tests. It is a full classroom and assessment platform with: A Flutter mobile app for both students and teachers Role-based home layout...

Zheus Leiandre Codez Cajote 11 hours ago

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DEV Community · Technology

A declarative CLI framework in Rust

I built a declarative CLI framework in Rust (define your CLI in TOML) Most Rust CLI tools are built with libraries like clap. They’re powerful—but also verbose. After building a few internal tools, I kept running into the same problem: Too much boilerplate for simple commands Repeating argume...

kuangren chu 11 hours ago

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DEV Community · Technology

a claude code/codex plugin to run autoresearch on your repository

i built https://github.com/evo-hq/evo for those of you who are autoresearch pilled , or have been meaning to get into autoresearch but dont know how. Its an opensource Claude Code & Codex plugin that optimizes code through experiments you hand it a codebase. it finds a benchmark, runs the bas...

Alok Bishoyi 11 hours ago

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DEV Community · Technology

AI startup claims to automate app making but actually just uses humans

When "AI Automation" is Just Human Labor: A Developer's Reality Check The AI landscape is a minefield of hype and promises. As developers, we're constantly sifting through marketing fluff to find the actual signal – the tools, frameworks, and methodologies that genuinely push boundaries a...

Steffen Kirkegaard 11 hours ago

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DEV Community · Technology

The Scroll Animation That Was Hiding Our LCP Element

Mobile LCP of 6-7 seconds. Server response of 72ms. The problem was a scroll animation hiding our primary heading at opacity 0 until JavaScript hydrated. Here is what we found and how we fixed it. The numbers did not add up We ran Lighthouse on the Stackra.app homepage. Desktop performance scored...

Luke Beck 11 hours ago

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DEV Community · Technology

Java Collections: Everything You Need to Know About the List Interface

1.List Interface : The List interface is part of java.util and extends the Collection interface. It represents an ordered sequence of elements — you can access any element by its position (index). It is Ordered It Allows duplicates Index-based access import java.util.List; import java.util.A...

Arul .A 12 hours ago

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DEV Community · Technology

Topological and Ergodic Approaches to the Collatz Conjecture: Rei-AIOS vs. Santana (2026)

Liquid syntax error: Variable '{{n, 2n}' was not properly terminated with regexp: /\}\}/

Nobuki Fujimoto 12 hours ago

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DEV Community · Technology

How I built a tool that converts SVG files into 3D letter fabrication files (STL + DXF)

The problem Every time a client wanted dimensional letters — for a sign, an installation, a storefront — I hit the same wall. Either I had to hire a 3D modeler, or spend hours in Blender manually extruding paths, fixing normals, and setting up tolerances for the acrylic slot. Neither...

Diego Gabriel Dominguez 12 hours ago

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DEV Community · Technology

Show HN: SleepyQuant – a 12-agent crypto quant running on one Mac

Show HN: SleepyQuant – a 12-agent crypto quant running on one Mac Hey everyone, SleepyQuant is a solo experiment I've been running for the last couple of weeks: 12 local AI agents coordinating a paper crypto trading book on a single Apple M1 Max. No cloud inference, no API bills, no vend...

Đỗ Hiệp 12 hours ago

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DEV Community · Technology

Create Video Receipts for AI Agents with Playwright Screencast API

TL;DR Playwright v1.59.0 ships the Screencast API, letting AI agents produce verifiable video evidence of their work. Engineers can replay agent actions with chapter markers and action annotations—no manual test replay required. Setup is three lines: start the screencast, run your agent l...

Anton Gulin 12 hours ago

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DEV Community · Technology

Brain, Explained

Alright, let’s talk about AI coding. If you’ve been using ChatGPT, Codex, Claude… whatever your weapon of choice is — you’ve probably felt this already. Sometimes it’s insane. Like… how did it just write that? Other times, it’s just frustrating. You explain something. It kind of gets it. Then you as...

Jimmy McBride 12 hours ago

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DEV Community · Technology

I built a small P2P lib over UDP and it actually works

I built a small P2P lib over UDP and it actually works So I got tired of every P2P library being either massive or too opinionated. Hyperswarm is great but it pulls in a lot of stuff I don't need. I just wanted something small, auditable, and simple enough that I could reimplement it in R...

Spiral200 12 hours ago

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DEV Community · Technology

GitHub Copilot in 2026 is not what you think it is anymore

If you still think of GitHub Copilot as "the thing that autocompletes your code," you're about two years behind. That's not a criticism - the product has changed faster than most people's mental models of it. This post is an attempt to give you an accurate picture of what Copilot actually is right n...

Carlos José Castro Galante 12 hours ago

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DEV Community · Technology

I Built an AI Chief of Staff That Never Forgets Most startup chaos is memory failure

Founders rarely fail because they lack tools. They fail because context leaks everywhere. An investor call happens on Monday. A customer complaint lands on Wednesday. A hiring candidate mentions a salary concern on Friday. By the next week, half the useful detail is trapped in Slack threads, meetin...

Dheer46 12 hours ago

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DEV Community · Technology

Braille-D-FUMT8 vs CLIP / BERT / ImageBind: a Rigorous Information-Theoretic Comparison

This article is a re-publication of Rei-AIOS Paper 110 for the dev.to community. The canonical version with full reference list is in the permanent archives below: Zenodo (DOI, canonical): https://doi.org/10.5281/zenodo.19637600 Internet Archive: https://archive.org/details/rei-aios-paper-109-...

Nobuki Fujimoto 13 hours ago

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