标签：#opensource

It started with the dumbest problem in computing: I'm in bed, a movie is playing on my laptop across the room, and pausing it requires physically getting up . Every existing fix annoyed me in some way. Remote desktop apps are overkill and route through someone's cloud. Remote-control apps want accounts, subscriptions, or a native app install. I just wanted my phone to poke my laptop over my own Wi-Fi. So I built LapDeck : one Node.js process on the laptop, a PWA on the phone. Scan a QR code once and your phone becomes an app launcher, touchpad, keyboard, live screen viewer, and media/power remote. MIT licensed, plain JavaScript, no build step. This post is about the four problems that turned out to be more interesting than I expected. The architecture in one line Phone (PWA) ── WebSocket + MJPEG over Wi-Fi ──► Node.js agent (Windows) The agent serves the PWA, exposes a WebSocket for commands, and streams the screen as MJPEG. The protocol is deliberately dumb JSON envelopes — no protobuf, no RPC framework — so a native Android client or a CLI script can speak it in an afternoon. Windows-specific glue (volume, brightness, power, capture) is isolated in src/win/ , so a macOS/Linux port only has to reimplement that layer. Problem 1: mobile keyboards lie to you The obvious way to build a remote keyboard is to listen for keydown and forward key codes. On mobile, this collapses immediately: swipe typing, autocorrect, and IME composition don't emit per-key events. Android will happily tell you every key is keyCode 229 . The fix: stop listening to keys entirely. I keep a hidden input, and on every input event I diff the field's value against the last known state — compute the common prefix, then emit "delete N chars, type this string" to the laptop. Swipe-type a whole word and the laptop receives one clean text insertion. IME composition, autocorrect rewrites, emoji — all just become diffs. The lesson generalizes: on mobile web, treat the text field as the source of truth, n

TL;DR I merged several training courses into one monorepo and gave every course the same numbered folder shape : 00-planning → 04-post-training . A _TEMPLATE/ you copy to start the next one, an _ARCHIVED/ you park old stuff in, and a CLAUDE.md that makes the convention machine-readable. The trick that makes it stick: templates use <angle-bracket-slots> , and "done" is a grep that returns nothing. I had course material scattered across repos — planning notes here, marketing copy there, facilitator run-sheets in a third place. Every new course started from a blank page, and I re-invented the folder layout each time. So I collapsed everything into one monorepo with a single rule: every course has the identical shape. The lifecycle, as folders The insight isn't "use folders" — it's that a course has a lifecycle , and numbered folders make that lifecycle the primary axis instead of file type. Plan it, sell it, teach it, run it, follow up. Five stages, always in order: Folder Stage What lives here 00-planning/ Prepare Syllabus (source of truth), specs 01-marketing/ Sell Positioning master + channel assets 02-content/ Teach Modules, one file each 03-delivery/ Run Run-sheet, pre-flight checklist, fallback plan 04-post-training/ Follow up Feedback form, follow-up email, post-mortem The numeric prefix isn't decoration. It forces sort order to match the actual workflow, so the folder listing reads like the process itself. Same reason migration files are timestamped — order is information. <course>/ 00-planning/ -> derives everything below 01-marketing/ 02-content/ 03-delivery/ 04-post-training/ --. post-mortem findings | ^------------------' feed back into 00..03 That loop at the end matters: the post-mortem doesn't sit in a graveyard folder. Its findings flow back into the syllabus, the run-sheet, the marketing. The structure runs the same feedback loop it's supposed to teach. _TEMPLATE/ : a course starts as a copy Starting a new course is one line: cp -r _TEMPLATE my-new-cou

why-we-open-sour-c1f013bf.webp alt: Building Digital Identity Tools - Why We Open-Sourced Our SSI SDK relative: false Self-Sovereign Identity (SSI) is a framework that allows individuals and organizations to control their own digital identities and share verified credentials without relying on a central authority. This paradigm shift empowers users with greater privacy and control over their personal data, while also providing robust mechanisms for verifying the authenticity of credentials. What is Self-Sovereign Identity (SSI)? SSI is built around the concept of decentralized identifiers (DIDs) and verifiable credentials. DIDs are unique identifiers that are controlled by the entity they represent, enabling them to manage their own identity data. Verifiable credentials are digital assertions that can be issued by one party and verified by another, ensuring the authenticity and integrity of the information shared. Why did we open-source the SSI SDK? Open-sourcing the SSI SDK was a strategic decision driven by several factors. First, fostering innovation within the community is crucial for advancing the field of digital identity. By making our SDK available to everyone, we encourage collaboration and experimentation, leading to new ideas and improvements. Second, promoting transparency is essential for building trust in digital identity systems. Open-source projects allow others to inspect the codebase, understand how it works, and identify potential vulnerabilities. This transparency helps build confidence in the security and reliability of the SDK. Finally, enabling a broader community to contribute to and benefit from secure digital identity solutions aligns with our mission to democratize access to these technologies. By lowering the barriers to entry, we hope to empower more developers and organizations to adopt and improve upon our work. What are the key features of the SSI SDK? The SSI SDK provides a comprehensive set of tools for building digital identity app

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When people hear about a new project scaffolding tool, one of the first questions they ask is: "Can I choose React Query or TanStack Query?" "What about pnpm instead of Bun?" "Can I use ESLint instead of Biome?" "Can I choose Radix instead of Base UI?" "Can I skip Tailwind?" These are reasonable questions. In fact, I asked myself the same ones while building create-notils . My first instinct was to make everything configurable. The more I thought about it, the more I realized I was about to build something I didn't actually want to use. The Configuration Trap Most project generators start simple. Then someone requests another option. Another package manager. Another ORM. Another authentication provider. Another CSS framework. Another UI library. Eventually the CLI starts looking like this: ? Which package manager? ❯ npm pnpm yarn bun ? Which CSS framework? ? Which ORM? ? Which auth library? ? Which formatter? ? Which icon library? ? Which deployment target? It feels flexible. But every new option creates more combinations to support. Five choices in one prompt don't create five possible projects. They multiply with every other prompt. The complexity grows much faster than the number of features. I Built the Tool I Wanted to Use One thing I've learned from building side projects is this: the first user should always be yourself. Every project I start today uses almost exactly the same stack: Next.js 16 React 19 Bun Tailwind CSS v4 shadcn/ui Base UI Biome TypeScript Turborepo (when needed) I wasn't switching between ten different combinations every week. I was rebuilding the same foundation over and over. So instead of asking twenty questions during scaffolding, I decided to optimize for the workflow I actually have. npx create-notils my-app A few seconds later, I'm writing features instead of answering prompts. Opinionated Doesn't Mean Closed There's an important distinction between opinionated and restrictive . Some tools hide their implementation behind abstraction

Hoi hoi! I'm @nyaomaru, a frontend engineer. Thanks to my daily Duolingo streak, Dutch is finally...

Structural engineers evaluate ASCE 7 Chapter 2 load combinations on nearly every design. The factors themselves are not hard — the failure mode is a spreadsheet cell that someone “improved” six months ago, or a notebook that only checks one combination. loadcomb is a small, dependency-free Python library and CLI that evaluates the basic LRFD and ASD combination sets on scalar load effects you already have from analysis. pip install loadcomb loadcomb --D 120 --L 80 --S 40 --W 55 --method LRFD from loadcomb import LoadCase , governing g = governing ( LoadCase ( D = 120 , L = 80 , S = 40 , W = 55 ), method = " LRFD " ) print ( g . id , g . value , g . formula ) What it handles Basic LRFD and ASD combinations from ASCE 7 Chapter 2 (Lr or S or R) resolved to the roof variable with largest absolute effect Automatic ± envelope for wind and earthquake Governing combination by absolute value What it is not Not FEA, not member design, not every exception in the standard. Confirm the ASCE 7 edition and local amendments for your project. Links pip install loadcomb GitHub PyPI Blog: sybilgambleyyu.github.io/posts/loadcomb.html MIT licensed.

Over the past few months, I've noticed that most discussions around AI coding assistants focus on prompts. People share: .cursorrules AGENTS.md CLAUDE.md long prompt templates custom instructions The assumption is always the same: "If I explain my engineering practices clearly enough, the AI will follow them." For simple projects, that works. For real software projects, it eventually breaks down. The problem isn't intelligence. It's governance. Every AI coding assistant eventually produces something like this: giant functions skipped tests undocumented architectural decisions ignored security practices direct commits inconsistent commit messages missing pull request descriptions Not because the model suddenly became "worse". Because nothing prevents it from taking shortcuts. Exactly like humans. We already solved this problem... for humans. Professional software engineering has never relied on trust. Instead, we built systems that enforce discipline. We don't ask developers to: write tests We fail CI. We don't ask them to: use meaningful commit messages We reject the commit. We don't ask them: not to push directly to production Protected branches make it impossible. Engineering isn't based on trust. It's based on constraints. Yet with AI... ...we went backwards. Instead of constraints, we write instructions. We create increasingly sophisticated prompt files hoping the assistant will remember them. Always write tests. Always document architectural decisions. Use GitHub Flow. Follow OWASP. Keep functions below 40 lines. Never commit directly to main. Those aren't guarantees. They're suggestions. And suggestions are eventually ignored. Rules are not enforcement. Recently I came across an article making a simple observation: Rules without enforcement are just hopes. That sentence stayed with me. It perfectly describes the current state of AI-assisted development. An AI may fully understand your engineering rules. It may even agree with them. But unless something checks

从FROST到FROST-SOP：如何用家族治理模型打造你的"AI分身"？ 作者 ：神通说 日期 ：2026-07-22 主题 ：双项目联动 | 周三轮换 阅读时间 ：10分钟 开场：一人公司的终极困境 你是否有这样的体验？ 每天醒来，脑子里塞满了要做的事： 写推广文章 回复客户咨询 跟进项目进度 整理会议纪要 复盘昨天数据 一个人做公司，听起来很自由。实际上， 自由职业者的时间比上班族更碎片 ——因为所有事情都堆在你一个人身上，没有任何分工。 我一直在思考一个问题： 能不能用AI Agent来"复制"自己？ 不是那种"给你一堆提示词让你自己写"的AI工具，而是真正能 自主执行任务、自动汇报结果、帮你分担80%重复工作 的数字分身。 这个想法最终落地成了两个项目： FROST 和 FROST-SOP 。 第一站：FROST的家族治理模型——AI Agent应该像家族一样分工 FROST 的核心理念来自一个观察： 自然界最稳定的组织形式不是公司，而是家族。 家族有清晰的分工： 祖辈定规矩，不亲自下场 父辈协调全局，分配任务 子辈执行具体事务 把这个逻辑映射到 AI Agent，就是 FROST 的家族治理模型： ┌─────────────────────────────────────────────────────┐ │ 👑 君主（你） │ │ └── 发布任务、查看结果，不干预执行 │ │ │ │ 👴 祖辈（主Agent） │ │ └── 常驻、全局编排、拆解任务 │ │ ↓ │ │ 🕵️ 斥候（侦查Agent） │ │ └── 外出狩猎、收集情报、快速验证 │ │ ↓ │ │ ⚔️ 府兵（执行Agent） │ │ └── 领命执行、重复劳动、汇报结果 │ │ ↑ │ │ 📜 长老（监督Agent） │ │ └── 记录过程、沉淀教训、审计合规 │ └─────────────────────────────────────────────────────┘ 关键洞察： 祖辈是唯一"常驻"的，其他都是动态生成、执行完就解散的临时角色。 这个模型解决了一个核心问题： 谁来决定"这件事该派给谁"？ 答案是： 祖辈 。它不需要亲自执行，只需要决定"派谁去"和"怎么汇报"。 第二站：用FROST的四个原子，理解Agent的本质 FROST 只有四个核心概念，却能构建出完整的家族治理系统： from frost.core import Store , Agent , skill_set , skill_get # 四个原子： # 1. Store（记忆）—— Agent的工作空间 store = Store () # 2. Skill（能力）—— 纯函数，无状态 def collect_daily_tasks ( context ): """ 收集今日任务 """ tasks = [ " 写推广文章 " , " 回复客户 " , " 跟进项目 " ] context [ " tasks " ] = tasks return context def execute_task ( context ): """ 执行单个任务 """ current_task = context . get ( " current_task " , "" ) context [ " result " ] = f " 已完成: { current_task } " return context # 3. Agent（细胞）—— 包裹记忆和能力 daily_agent = Agent ( " daily_worker " , store , skills = { " collect " : collect_daily_tasks , " execute " : execute_task }) # 4. SOP（宪法）—— 定义执行顺序 result = daily_agent . run ( sop_steps = [ " collect " , " execute " ], initial_context = { " current_task " : " 写推广文章 " } ) print ( result [ " result " ]) # 输出：已完成: 写推广文章 这四个原子教会我们什么？ Store 解决"记忆"问题——Agent需要上下文 Skill 解决"能力"问题——每个动作必须是可复用的单元 Agent 解决"封装"问题——把记忆和能力绑定在一起 SOP 解决"秩序"问题——让执行顺序可控可审计 理解了这四个原子，你就理解了 Agent 的本质—— 它不是魔法，是结构化的委托系统 。 第三站：FROST-SOP——把家族治理变成生产系统 FR

reconmatch is a local-first transaction matching engine for accountants, bookkeepers, and controllers. Two CSVs in — books vs bank, invoices vs payments — a scored, auditable match report out. No account, no upload, no network call. Repo: github.com/SybilGambleyyu/reconmatch The unglamorous pain If you close books for a living, you already know the scene: two windows open, a bank CSV on the left, a general-ledger export on the right, and an afternoon disappearing into "which deposit is which invoice." Bank feeds help until they do not. The hard cases are ordinary: One deposit that covers three invoices Two payouts that sum to one sales batch on the books A check number in the memo on one side and a dedicated column on the other "ACH ACME CORP INV 1042" vs "Invoice payment ACME Corp" An orphan the feed never explained Enterprise close tools charge enterprise prices and want the data in their cloud. For a CPA firm or bookkeeper sitting on confidential client ledgers, "just upload the CSV" is often a non-starter. Spreadsheet VLOOKUP falls over on partial payments and batch deposits. What reconmatch does Matching runs in deterministic phases so the same inputs always produce the same proposals: Exact / reference-strong — amount within tolerance, date in window, shared invoice/check/wire token Amount + date — numbers line up even when memos are noise Fuzzy description — token overlap plus sequence similarity (pure Python stdlib) Group 1:N and N:1 — one line equals the sum of several on the other side Every accepted match carries a score and human-readable reasons suitable for a workpaper. Unmatched lines stay unmatched — the tool does not invent a story for them. pip install git+https://github.com/SybilGambleyyu/reconmatch.git reconmatch books.csv bank.csv -o ./march-recon Outputs: plain-text report, matches CSV, unmatched CSV, and full JSON. Zero required third-party dependencies. Python 3.10+. Library use from reconmatch import MatchConfig , match_transactions from rec

Most agent projects do not fail because the first model call is difficult. They become difficult when the prototype needs memory, tools, evaluation, a user interface, documentation that coding agents can navigate, and a repeatable review process. That is the problem the open-source AgentsKit ecosystem is trying to solve for JavaScript teams. It is a set of independent projects with shared contracts, rather than one application that must own the whole stack. The six public pieces 1. AgentsKit: the composable foundation AgentsKit provides focused JavaScript and TypeScript packages for runtimes, adapters, tools, skills, memory, RAG, evaluation, observability, sandboxing, and UI bindings. Its core has zero runtime dependencies and a CI-enforced 10 KB gzipped budget. Six formal contracts keep adapters, tools, memory, retrievers, skills, and runtimes substitutable. You can run a first local agent without an API key: npm install @agentskit/core @agentskit/runtime tsx Then connect OpenAI, Anthropic, Gemini, Ollama, or another adapter without changing the rest of the runtime composition. 2. AgentsKit Chat: one interaction model, seven renderers AgentsKit Chat defines an interactive agent experience once and renders it through React, React Native, Ink, Vue, Svelte, Solid, or Angular. It also supports deterministic local answers before an optional backend call. That matters for documentation and support interfaces where exact project facts should not require an LLM. pnpm dlx @agentskit/chat-cli@0.4.0 init my-chat --renderer react --yes 3. Registry: reusable source, not another dependency The AgentsKit Registry distributes ready-to-use agents in a shadcn-style model: the CLI copies the source into your project, so you can inspect and modify it. npx agentskit add research npx agentskit add code-review The public catalog currently includes research, code-review, and knowledge-promotion agents, and is open to contributions. 4. Agents Playbook: engineering rules that can execute Ag