// the labs

Workshop in progress.

mycuppa.io is the Cuppa Tech sandbox — learning notes, R&D experiments, and a build-time scrape on AI & mobile. Less polished than cuppatech.com; that's the point.

// latest

Fresh from the feed. all news →

  1. [simon willison]

    Quoting Prompting Claude Fable 5.2

    Claude Fable 5.2 responds closely to what the prompt says about who owns the code it works on. In Anthropic’s testing on small coding tasks, when a prompt said…

  2. [simon willison]

    llm-anthropic 0.31

    Release: llm-anthropic 0.31 Anthropic released Fable 5.2 and Mythos 5.2 today. Fable 5.2 is currently ranked first on Artificial Analysis . Anthropic say it…

  3. [simon willison]

    Locating the source of a mysterious beep with Claude

    Our house has a box room, full of boxes that we still haven't unpacked from our last move. A couple of weeks ago something in that room started intermittently…

  4. [vercel]

    Vercel Sandbox snapshot creation is now up to 10x faster

    now creates snapshots up to 10x faster. Median time to snapshot is under 0.4 seconds, down from 4.4 seconds. Snapshot restore speed has also improved by 50%…

// notes

Recent learning notes. all articles →

  1. // Mobile · iOS

    Modern iOS App Architecture - Part 1: Foundation & Layers

    Deep dive into modern iOS app architecture, covering layered architecture, MVVM, unidirectional data flow, and dependency injection. Essential guide for building scalable iOS applications with SwiftUI.

  2. // Mobile · iOS

    Modern iOS App Architecture - Part 2: State Management & Navigation

    Learn advanced state management patterns, navigation coordination, and data flow in modern iOS applications with SwiftUI and Combine.

  3. // Mobile · iOS

    Modern iOS App Architecture - Part 3: Testing & Best Practices

    Master testing strategies, dependency injection patterns, and production-ready best practices for modern iOS applications.

  4. // AI · MCP

    Building an AI Chatbot with MCP-Inspired Skills Architecture

    Learn how to build a production-ready AI chatbot using MCP-inspired Skills, markup-based knowledge, and cost-optimized architecture. Complete guide with code examples for modern applications.

  5. // Mobile · Android

    Mobile AI Chatbot Integration: Android Native Implementation

    Complete guide to integrating AI chatbot into Android (Jetpack Compose) apps with streaming responses, native UI, and authentication.

// what's here

Three surfaces.