+ An open-source, AI-native successor to HyperCard. Cards, + buttons, fields and HyperTalk, and a stack stays editable while it runs. +
+
+on mouseUp
+ put ai("Summarize this card") into field "Summary"
+end mouseUp
+
+ + The playground is the full application, compiled to WebAssembly. Nothing you + make leaves your machine unless you ask a model about it. +
++ 🍎 In 1987, Apple shipped HyperCard, and software stopped being something only + programmers made. +
++ You drew a button, typed two lines of plain English, and that was the app. No + project file. No compiler. Sounds familiar? +
+-
+
- + 👩🏫 Teachers + wrote their own courseware + +
- + 🏛️ Museums + ran kiosks on it + +
- + 🏝️ Myst + was made in it + +
+ It came free on every Mac for over a decade. Then it was gone, and nothing + quite took its place. +
++ HyperLab picks the idea back up, with language models part of HyperTalk + itself. +
++ 🕯️ Dedicated to Bill Atkinson (1951–2025), who wrote + QuickDraw, MacPaint and HyperCard, and insisted the last of them ship free + with every Mac. +
++ Each opens in the playground, running. Switch to the edit tool to read the + scripts that make it work. +
+-
+
- + + Cluedo + A drawn mansion with clickable rooms, and a case you close by + deduction. + + +
- + + Myst + An island, four Ages, and one book you should not open. Go ▸ Map finds + the trap without running a line. + + +
- + + LLMs for n00bs + Nine slides on how a language model works. The last one asks a real + model, and says so plainly when none is set up. + + +
- + + Address Book + A card per person, one shared background. + + +
- + + Recipe Box + Chunk expressions doing arithmetic on the ingredients. + + +
- + + Todo + A list, a dialog, and a loop. + + +
+ HyperLab works with no provider configured. + AI ▸ Settings takes Anthropic, OpenAI, OpenRouter, a local + Ollama, or a mock that answers offline. +
++ Your API key stays in your browser. The site is static files; + requests go from your browser directly to your provider, and no command reads + a saved key back out. The sidebar shows the exact text of everything sent. +
++ The assistant works through the same commands you do, so its changes are + undoable like any other. +
+
+ A .dmg, an .msi, and a .deb,
+ .rpm or .AppImage on the
+ releases page. A stack downloaded from the playground opens in the application; it is the
+ same file.
+
+ Stacks export as a PDF, as a PNG of the map, as a self-contained web page, and + as a Decker deck — from the + playground as readily as from the application. +
+