@onno’s sleeve

Sleeved
116
Member since
May 2026

Sleeved links

  • May 2026
  • typeonce.dev
    • typescript
    • backend

    Most common effect patterns | Effect: Beginners Complete Getting Started

    The page explains common production patterns for Effect, including using a custom Runtime from the beginning. It is part of the “Effect: Beginners Complete Getting Started” course focused on building type-safe TypeScript apps with Runtime, Layer, Config, and related concepts.

  • blog.cloudflare.com
    • ai
    • security
    • backend

    Project Glasswing: what Mythos showed us

    The Cloudflare blog describes “Project Glasswing,” where the company tested Mythos and other security-focused LLMs by applying them to live code across critical parts of its infrastructure. It reports observed strengths and weaknesses and discusses what work is needed to make such approaches scalable.

  • parthjadhav.com
    • ai
    • design
    • tools

    AI-Powered Marketing Screenshots

    The page describes an AI-powered tool for generating production-ready App Store and Google Play screenshots. It emphasizes ad-first design, supports every resolution, and claims Apple approval.

  • raycast.com
    • tools

    The New Raycast - Raycast Blog

    The Raycast blog post introduces the next generation of Raycast for macOS, presenting what’s new and improved. It highlights the launch/announcement of the new Raycast experience.

  • github.com
    • front-end
    • tools
    • design
    • backend

    ShadowArcanist/netviz: A browser-based app for designing network architectures visually.

    ShadowArcanist/netviz is a GitHub-hosted, browser-based application for visually designing network architectures.

  • foldkit.dev
    • typescript
    • front-end
    • ai

    TypeScript Frontend Framework Built on Effect-TS | Elm Architecture

    Foldkit.dev is a TypeScript frontend framework built on Effect-TS that follows The Elm Architecture (single state tree, pure update functions, and explicit side effects). It also emphasizes type-safe routing and positions itself as an alternative to React for correctness-focused teams.

  • blog.sbensu.com
    • design
    • backend

    APIs as ladders

    The post argues that API learning can be improved by designing an “API ladder” tailored to different skill levels. It explains how to structure APIs to be approachable for beginners while still supporting advanced use cases.

  • raycast.com
    • design
    • front-end
    • tools
    • backend

    A Technical Deep Dive Into the New Raycast - Raycast Blog

    The Raycast Blog post describes the technical story behind Raycast’s cross-platform rewrite and highlights the engineering choices that make the new app feel fast, delightful, and familiar.

  • github.com
    • backend
    • security
    • tools

    umami-software/umami: Umami is a modern, privacy-focused analytics platform. An open-source alternative to Google Analytics, Mixpanel and Amplitude.

    The GitHub repository umami-software/umami describes Umami as a modern, privacy-focused analytics platform. It is positioned as an open-source alternative to Google Analytics, Mixpanel, and Amplitude.

  • mobbin.com
    • ai
    • tools
    • design

    Mobbin MCP — Design reference for AI agents

    Mobbin MCP is an interface that connects AI agents to Mobbin’s library of 600,000+ real screens from shipped products. It aims to help developers build agent experiences using established design patterns rather than speculation.

  • skills.sh
    • tools

    react-doctor — aidenybai/react-doctor

    The page describes the “react-doctor” project (aidenybai/react-doctor), a tool intended to run before committing React code or when finishing a feature and fixing bugs. It checks code quality and helps clean up a codebase to improve React code health.

  • hashvatar.com
    • front-end

    deterministic avatars from any hash

    Hashvatar lets you generate deterministic, unique avatars from any input string (e.g., wallet addresses or usernames) using zero dependencies. It offers gradient and dither modes and provides React and vanilla JavaScript usage.

  • lightpanda.io
    • ai

    The headless browser

    Lightpanda.io presents “The headless browser,” an AI-native browser built from scratch (not a fork) for automated web access. It claims significantly improved performance and resource usage versus Chrome headless, emphasizing fast, scalable web automation with low memory footprint.

  • github.com
    • ai

    slkiser/opencode-quota: OpenCode quota & tokens usage with zero context window pollution. Supports OpenCode Go, Cursor, GitHub Copilot, OpenAl (Plus/Pro), Kimi Code, Alibaba Coding Plan, Chutes Al, Google Antigravity, Z.ai Coding Plan and more.

    slkiser/opencode-quota is a GitHub repository for tracking OpenCode quota and token usage while minimizing “context window pollution.” It supports multiple coding AI services/tools, including OpenCode Go, Cursor, GitHub Copilot, OpenAI (Plus/Pro), Kimi Code, Alibaba Coding Plan, Chutes Al, Google Antigravity, and Z.ai Coding Plan.

  • npmx.dev
    • tools

    better-result

    better-result is an npm package providing a lightweight Result type for JavaScript/TypeScript, designed to support generator-based composition.

  • x.com
    • tools

    Two new skills this week! - /handoff compacts your current session to a markdown file - /prototype helps you prototype anything - UI or backend And a bunch more updates. Here's the changelog:

    The post announces two new features this week: “/handoff” to export the current session to a Markdown file and “/prototype” to prototype UI or backend work, along with additional updates. It references a changelog for the site/account @mattpocockuk.