Author: Arthur Jean, solo indie maker. More on paneflow.dev and arthurjean.com.Repo: github.com/ArthurDEV44/paneflow. MIT licensed. I spend my days running Claude Code, Codex, and OpenCode in parallel panes. Different agents on different branches, each with…

引言 在前端开发中，JavaScript一直是绝对的主角。但随着应用复杂度的提升，某些计算密集型任务用JS实现往往性能不足。WebAssembly的出现打破了这一限制，而Rust凭借其零成本抽象和内存安全特性，成为了编写Wasm模块的最佳选择。 性能对比 环境搭建 curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | shrustup target add wasm32-unknown-unknowncargo install wasm-pack…

The Problem We Were Actually Solving In 2023 we launched a SaaS tool for performance engineers. Nothing fancy—just a low-latency endpoint profiler that ingests traces and returns flamegraphs with flamegraph.js. We didnt need Stripes UI. We needed a way to…

I had a system prompt that ended with: Reply with only a JSON object. Do not include code fences. Do not include explanation. That should be enough. It is not. Over a week of structured-output calls (12,400 of them, mostly Claude Sonnet 4.5 and 4.7), I logged…

A few weeks back there was a 22-minute window where Anthropic returned a high rate of 5xx responses. Not a full outage. Degraded. Our agent service had a retry policy that backed off and tried again on 5xx. With six workers and a shared retry budget that…

The Problem We Were Actually Solving We needed a way to move money out of countries where PayPal, Stripe, and Gumroad had no footprint. Our micro-payment layer already integrated with local aggregators—EasyPaisa in Pakistan, bKash in Bangladesh, Flutterwave…

Most RAG tutorials start the same way: "First, install a vector database…" Then come the embedding models, the chunking strategies, the similarity thresholds. By the time you can ask a question about a PDF, you've deployed three services and written 200 lines…

React 19 Hydration Mismatch — Root Cause & Fix If you've upgraded to React 19 and started seeing hydration errors like: Error: Hydration failed because the initial UI does not match what was rendered on the server. Here's the actual root cause and how to…

Most AI agents wait. They sit idle until a human types something, respond, then go back to waiting. Garudust Agent can be different. With garudust-cron, you schedule tasks using standard cron syntax — the agent wakes up, runs a full LLM loop with all its…

This is Part 4 of the Core Rust Concepts series. Part 1 — Ownership, Borrowing, Lifetimes, Traits, Result/Option, Pattern Matching Part 2 — Closures, Iterators, Generics, Enums, Smart Pointers, Async/Await Part 3 — Macros, Modules, Testing, Unsafe Rust, FFI…

Rmux: A Programmable Terminal Multiplexer with an SDK-Driven Automation Model The landscape of terminal multiplexers has long been dominated by tools like tmux and screen, which provide robust session management, window splitting, and pane organization. These…

Originally published on andrew.ooo — visit the original for any updates, code snippets that aged out, or follow-up posts. TL;DR Rmux is a from-scratch Rust rewrite of the terminal multiplexer idea, built specifically for the agentic era. It hit Show HN on…

Most Rust developers expect the pitch to hold: compile to WebAssembly, ship to the browser, no C required. Add the wasm32-unknown-unknown target, run wasm-pack build, and you're done. Then you try it on a real project. Four traps, none of them in the getting…