Block the Merge if the Model Isn't Ready": Shifting Local AI Evaluations Left with CI Gates
We’ve all heard "it works on my machine," but when it comes to AI-driven features, that phrase is a recipe for disaster. You can have a perfectly test…
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I built a JS/TS runtime in Rust where nothing runs without your permission
Last week I shipped v2.0.2 of 3va — a JavaScript and TypeScript runtime written in Rust. Here is why I built it and what makes it different from Node.…
I built a JS/TS runtime in Rust where nothing runs without your permission
Last week I shipped v2.0.0 of 3va — a JavaScript and TypeScript runtime written in Rust. Here is why I built it and what makes it different from Node.…
Building an AI-Resistant Post-Quantum VPN in Rust 🦀 (With an Open Crypto Challenge)
Hello Dev.to! 👋 I'm the architect of an experimental post-quantum VPN protocol called QCRA (Quantum-Chess Routing Architecture). It’s written entirely…
Simulating 2G to build an offline-first sync engine in Rust for rural clinics
hey dev.to, so I am Mathéo, a 2nd year CS student at EPITECH Nancy (France). I want to share a project I have been building for the last few months: Z…
Every elevator has a load plate. Tests are supposed to kill fear, not feed it.
Every elevator has a small metal plate near the doors: 8 persons — 630 kg . It doesn't mean the car snaps at the ninth person. It means an engineer lo…
I Built a Django-Inspired Web Framework in Rust — Here's What I Learned
If you've ever used Django, you know the feeling: one command, and you have an admin panel, an ORM, form validation, middleware, session handling — ev…
Bun rewrote itself from Zig to Rust using an LLM in 9 days. That should terrify you.
A major runtime just got machine-translated to a completely different language and merged in under two weeks. Let me say that again slowly. Bun, the J…
Три фикса, четыре ошибки, один файл
# Как мы четыре раза неправильно диагностировали зависание на джобе 281 339 Несколько месяцев назад я писал, [как мы четыре раза неправильно чинили ме…
Approval Is Not Enough: Building a Sub‑Microsecond Runtime Governance Gate in Rust
Most AI governance systems check approval once. Then they assume the agent is still authorised to act. That assumption fails silently. Policy changes.…
BoxAgnts Tool System (7) — Skill Templates, Agent Proxies, and Cron Scheduling
BoxAgnts' tool system, from WASM sandbox instruction-level isolation to the Tool trait's unified abstraction to the Provider layer's multi-model adapt…
I made a sitemap generator for mdBook. It was my first time releasing a crate!
I'm in high school in Japan. I'm afraid that this article may include some unnatural points. Motivation I'm creating a web document that explains syst…
Building a SQL Database in Rust: Reducing Memory Usage with Spans and String Interning
I have been working on a PostgreSQL compatible database system in Rust and recently made a couple of changes that significantly reduced unnecessary me…
Fitz CLI builder: like typer, but in the language
Build native CLI tools in Fitz with @command , no library to install. Help auto-generated, type-coerced flags, positional args by convention, native b…
The Dev Tools I Actually Use as a Solo Rust + Tauri Developer in 2026
All tests run on an 8-year-old MacBook Air. All results from shipping 7 Mac apps as a solo developer. No sponsored opinion. Not a listicle of everythi…
Ig my own operating system? CottonOS
I'm Building an OS From Scratch in Rust — And It Already Has a Desktop, Filesystem, and Networking A deep dive into CottonOS: a hobby OS written entir…
What Designing a Binary Protocol Actually Taught Me
Most developers never have to design a network protocol from scratch. You use HTTP, gRPC, WebSockets, or something else that already exists and has be…
Rust Crate 'onering' Compromised: Malicious Code Exfiltration Risk Mitigated with Updated Version
Introduction and Background The Rust ecosystem, celebrated for its memory safety and performance, relies heavily on crates —its package management sys…
Scarab Diagnostic Field Test #023 — Rust Raw Pointer Recursive Layout Boundary
Target: rust-lang/rust Issue: rust-lang/rust#157047 Status: ready-for-review PR opened PR: rust-lang/rust#157724 Branch: https://github.com/scarab-sys…
I Built My Own API Gateway in Rust — Here's What I Learned
Every backend project I've worked on eventually hits the same wall. You start clean — one service, simple routes, everything works. Then slowly the re…
RPGMapEditor.com: A Free Browser-Based Battle Map Maker for D&D and VTTs
Making a good tabletop RPG map should not require installing a heavy desktop app, learning a complex tool, or spending an hour just to draw a simple d…
«Я не смог устоять»: как один человек в 1965-м добавил null, и оставил индустрии счёт на миллиард долларов
5 марта 2026 года в своём доме, в окружении семьи, тихо умер человек, чей код вы трогали на этой неделе. Возможно, прямо сегодня. Возможно, он уронил …
rscrypto v0.4.0: Verifying Constant-Time Behavior Instead of Assuming It
Every cryptography library says it's secure and performant. Very few can explain how that security is validated and how that performance is proven aft…
Stop Feeding Agents Raw Data
I used to think the problem was the agent. I would hand it a large JSON export and ask a reasonable question: what changed, what looks risky, what sho…
Product Hunt Launch for an Indie Mac App — What I Did and What Happened
All tests run on an 8-year-old MacBook Air. All results from shipping 7 Mac apps as a solo developer. No sponsored opinion. I've launched three apps o…
SCPN Fusion Core: A Control-First, Neuro-Symbolic Software Stack for Tokamak Plasma Control
SCPN-FUSION-CORE ON GITHUB We built an open-source software laboratory that treats tokamak plasma control as a compiler problem. Control logic is expr…
BoxAgnts Runtime (7) — Sandboxed Execution, Rebuilding Agent Infrastructure
The AI industry is moving fast. Every week brings a new agent framework, coding assistant, autonomous workflow engine, or multi-agent platform. Most d…
Making Star Stable 1 Multiplayer
Introduction For those who aren't familiar with the Star Stable titles, they are split into sections: Star Stable [1, 2, 3, 4] - Singleplayer games St…
From Rust CLI bug-hunting to a massive Portfolio overhaul
23 commits, 3 PRs, and a 7-day streak. This week was a balance of deep-diving into Rust CLI logic, refining my Neovim setup, and a massive +4,500 line…
BoxAgnts Runtime (6) — Rust + WASM, Local-First
Over the past decade, software infrastructure has moved decisively toward cloud-native architectures. AI agents followed the same path—cloud-hosted mo…