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Who Decides the Tenant? A Small Rust Guard for AI Tool Calls
11+ min ago (622+ words) I have been thinking about a fairly ordinary failure mode in AI-enabled SaaS products. A support... Tagged with rust, ai, security, showdev....
Overpatch and Heapjack: Two Techniques for Bypassing Codex's Write Restrictions and Escaping Its Read-Only Sandbox
1+ hour, 20+ min ago (1542+ words) 1. Basic Information Original Title: Escaping the OpenAI Codex sandbox, twice Source: Accomplish AI Published: 2026-09-15 Updated: None Severity: High Basis for Severity: Researchers verified Overpatch, which writes outside the workspace using workspace-write, and Heapjack, which executes host commands from the strictest…...
Speeding Up a Python Service with CinderX: JIT and Static Typing
3+ hour, 5+ min ago (1406+ words) Every Python optimizer has a number: how many times faster it is. It is measured on kernels, sorting,... Tagged with backend, performance, python, softwareengineering....
Hexfield Deck is for Kanban lovers and Markdown believers
3+ hour, 21+ min ago (736+ words) Hi, I'm Henri. This is my first article here, and it's about almost everything I'm passionate about... Tagged with productivity, opensource, tooling....
I'm Building a Post-Quantum Bitcoin in Rust — and a Test Caught a Real Consensus Bug Tonight
5+ hour, 2+ min ago (356+ words) Most ransomware tools stop at detection. Most Bitcoin forks stop at marketing. This post is about neither — it's about building a Bitcoin whose signatures survive Shor's algorithm, and what "fair launch" means when you actually mean it. The first coinbase…...
PostgreSQL Will Let You Invent a Type, Right Up Until It Asks for a C Compiler
1+ hour, 16+ min ago (41+ words) A partner feed lands a million order rows a day, and the order date arrives as 03/15/2021. Someone stores it in a text …...
Bun Rewrites 535K Lines of Zig into Rust in Four Months, Eliminates Numerous Memory Leaks
5+ hour, 51+ min ago (720+ words) Bun creator Jarred Sumner recently announced that Bun, the JavaScript/TypeScript runtime, bundler and package manager has been rewritten from Zig to Rust. The rewrite seeks to eliminate recurrent memo...
Your Antivirus Only Watches. Mine Kills: Building a Detect-and-Respond Agent in Rust + eBPF
6+ hour, 51+ min ago (394+ words) Most ransomware "solutions" stop at detection: an alert, a dashboard row, an email you'll read tomorrow. By then the attacker has already encrypted the shares. I wanted the other thing: the process dies the moment the verdict fires. This post…...
Encrypted file storage, share links you actually set the rules on, or go P2P
6+ hour, 45+ min ago (181+ words) Turn on encryption and your upload is scrambled client-side with AES-256-GCM before it leaves your browser. The key is generated server-side once, emailed to you, and never stored after that — lose the email and the files are gone too....
How I Built a Free Sudoku Generation API with Rust and WebAssembly
10+ hour, 34+ min ago (566+ words) I recently shipped a free Sudoku generation API at Sudoku100, and the core engine is written in Rust compiled to WebAssembly. In this post I'll walk through the algorithm, the WASM setup, and the public API design — everything you need to…...