第三届中国 Rust 开发者大会 Use Rust to Develop the Decentralized Open Data Application Mike Tang daogangtang@gmail.com @daogangtang 2023-06-08 ➔ 裁员 ➔ 互联网格局定型 ➔ 平台倒闭，数据丢失 这是一个什么时代？ 互联网的终局 创业 -> 种子 ghtfish EightFish intends to develop the Data-kind Decentralized Application. You can use the traditional Web development coding style to develop a ODA. How to develop Open Data Application The EightFish the end users is the force to drive this network to evolve. ➔ So what we should keep doing is to develop the scale of the end users. ➔ More users, more data, more meanings. ➔ The incoming depends on consumer

- Memory Safe - Love 利用 Rust 重塑移动应用开发 PhoTto / image / chart Keystone Keystone is aiming to develop the most secure and easyuse hardware wallet for the Web3 world 利用 Rust 重塑移动应用开发 Photo / image targets for IOS - Build the static universal library for different target - Call the function on the swift code 利用 Rust 重塑移动应用开发 Photo / image / chart Rust 在 Keystone 业务上的实践 Rust Crypto Core 利用 Rust 重塑移动应用开发

2002, 2005 JVM – Java Native Access (JNA) – 2007 Go – cgo – permit C in the .go source file – 2009 Swift – share a runtime and be like C – 2014There is no one approach. Make it suck less by recognizing Reference counted - C++ – std::shared_ptr - Python - Objective-C (manual or automatic – see ARC) - Swift - COM – AddRef()/Release() - Non-Reference counted - .NET - JVM - JavaScript Manual memory management

oExtending with plugins oDebugging JavaScript Why are we here? How did NativeScript come to be? Swift/Obj-C Java .NET We ❤ Web. But… We need: • Better offline support • Access to all device APIs

Practicing Sparrow  CantripOS(KataOS)  Rust support in seL4 userspace III. Sparrow development  Develop with Renode IV. Wrap-up 1) Tech Stack 1.1 Microkernel Overview I. Background  https://en (Online);  Our new talk "The first exploration of Ray.Rust" will come soon. … 1) Develop with Renode 1.1 Rust peripheral support III. Sparrow Development  It has been possible to

（写一堆复杂 的脚本 ） -> -> Rancher 上手动替换 Helm Chart 版本 -> 调试 （使用 kubectl/ 日志系统） 2. 测试流程 合并到 develop -> GitLab-CI 自动构建打包 Chart （还是那堆复杂的脚 本） -> -> Rancher 上手动替换 Helm Chart 版本 -> 自动化 / 手工测试 上手动替换 Helm Chart 版本 工具链： • GitLab （源码 + 服务 Chart 配 置） • Rancher 部署 分支策略： • feature -> develop/release -> master 环境策略： • 三套环境（ dev 、 qa 、 prod ） 现状：基于 GitLab + Helm Chart 模版 + 多套

Transformation Mastery Content Authority Process Authority *Adopted from Agile Coaching Institute Develop them all! Let your style change!Agile Team Stages Learn It Get It Make It Your OwnFrom Shu To

Future Works • Extend Rust-VMM to support networking and storage • Security policy integration • Develop a new fully Rust-based runtime for edge computing • Support live migration Thanks! • Learn more

本地自测—— IDE 热部署 1. 查看服务和环境 2. 本地代码热部署到远端 测试验证 变更发布 需求开发 提交代码及 CI 过程 1. 本地编写代码推送到远端分支 1. 本地基于 develop 分支新建分支，在新建的分支上，编写代码 2. 推送代码到自己账号下的代码库 3. GitLab 上创建 MR 2. 自动触发 CI 过程，包括单元 测试，代码风格 检查、代码扫描

one-second time adjustment that is occasionally applied to UTC time to accommodate discrepancies that develop between precise time and observed solar time. Year June 30 Dec 31 Year June 30 Dec 31 1972