Full Stack Developer | Rust & Java Backend | Product Mindset ✨

Hi, I'm iota9star — I build digital experiences across the whole stack, from high-performance backends to interfaces people genuinely enjoy touching. On the server I lean on Rust 🦀 and Java ☕ for speed and reliability; on the client I reach for Flutter 📱, React, and Vue to make that speed feel effortless. I treat product thinking as an engineering skill rather than a department — the best code is the code that ships the right thing. 🎯 These days I'm fusing Rust into the Flutter ecosystem ⚡, shipping open-source packages with the fluttercandies org 🍬, and weaving AI agents 🤖 into my everyday workflow. Off the clock you'll find me tracking seasonal anime 🎬, wandering Bitcoin and EVM rabbit holes ⛓️, and rewriting things that already worked — just faster.

• 🦀 Systems-grade backends — Axum and Spring services that stay fast under pressure
• 📱 Cross-platform clients — Flutter, Android, React, and Vue apps with real polish
• 🤖 AI-powered engineering — code assistants, agent workflows, and quality-first automation
• ⛓️ Web3 exploration — BTC, EVM, and the Internet Computer
• 🧩 Open source — maintaining 20+ Dart/Flutter packages in the fluttercandies ecosystem

Languages

Backend

Frontend

Also exploring 🤖 AI agents · ⛓️ BTC / EVM / IC · ✅ quality-focused workflows · 🌸 anime APIs & scrapers

⭐ 1.8K+ stars across featured repos · 📦 24 projects below · 🥇 top repo 1.4K+ ⭐ · 🦀 Rust × Dart is my favorite crossover episode

• 🌟 mikan_flutter — 1.4K+ ⭐ Mikan Project client; the anime-bangumi companion the community actually uses
• ⚡ fjs — a JavaScript runtime for Flutter built with Rust on QuickJS: two worlds, one runtime
• 📺 dpad — TV D-pad navigation for Flutter, as simple as native Android development
• 🍬 fluttercandies — contributor across 20+ ecosystem packages: routing 🧭, caching 💾, layout 📐, parsing 🔍
• 🌸 sakura-dmhy & kisssub — resource clients in Java and Kotlin sharing one product philosophy
• 🕸️ void_signals — high-performance signal reactivity for Dart, based on alien-signals
• 🤖 goal & toto — AI-first CLI tools: idempotent goal tracking 🔁 and deterministic TOTP/HOTP 🔐

Ship things that respect the user's time ⏱️, write code that respects the next reader 📖, and treat performance as a feature — never an afterthought. 🚀

这世界如此寂静，是因为我一直在等你的声音。 "The world is so quiet, because I have been waiting for the sound of your voice." — 《我有一座恐怖屋》, 我会修空调 📚

• 📮 Email: iota9star
• 🐦 X: @iota9star
• ✍️ Juejin: Blog