FallBuild

Live: sjgant80-hub.github.io/fallbuild

The sovereign Oracle APEX wedge — a drag-drop low-code app builder in one HTML file.

Part of the TemuOracle suite · MIT

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For users

FallBuild lets you build small data-driven apps by dragging widgets onto a canvas. When you are done you export a single HTML file that runs anywhere — file://, a thumb drive, a static host. No server. No login. No telemetry.

Quick start

1. Open index.html in any modern browser.
2. Drag widgets from the left palette onto the canvas — Text, Form, Table, Chart, Button, Image, Container, Filter.
3. Click a widget to edit its props in the right panel.
4. Add pages from the page tabs above the canvas. Wire buttons to navigate between them.
5. Declare a data source (demo data, inline JSON, or FallBase) and bind your Form / Table / Chart widgets to it.
6. Hit preview to try it live. Hit edit to keep building.
7. File → Export standalone HTML writes a single file that runs independently.

Templates

Press Ctrl+K (the Ω autopilot) or click autopilot in the header. Type a phrase like crud, dashboard, lead capture, pricing, internal tool — or describe the app you want and a T3 LLM (if a key is set) will draft the JSON for you.

Export workflow

The exported HTML carries:

• a tiny widget runtime (~10KB) that renders pages and handles actions
• the embedded app JSON (your pages, widgets, props)
• the data bindings — inline JSON is baked in directly; FallBase sources get postMessage glue so the exported app can request rows from a live FallBase instance
• its own sovereign KONOMI shim (inherits prime 547 plus any app-specific prime)

That file opens in any browser, no FallBuild needed. Give it to a colleague. Drop it on a static host. It just works.

FallBase integration

If your app's data source is a FallBase table, the runtime listens for FallBase via the fall-signal BroadcastChannel and falls back to postMessage against the FallBase opener. Forms write rows back. Tables refresh.

Save / load

Apps auto-save to your browser's IndexedDB. File → Open lists every app you've ever built here. File → Export JSON / Import JSON moves an app between machines.

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For developers

Architecture

• Single HTML file. All CSS and JS inline. No build step. No external dependencies.
• App model: {name, pages: [{name, widgets: []}], dataSources: []} — pure JSON, fully serializable.
• Designer: vanilla drag-drop. The palette drags new widgets; the canvas drags existing widgets with corner-handle resize.
• Runtime: a separate ~10KB JS string defined inline (RUNTIME_SRC) that is injected into the export template along with the app JSON.
• Persistence: IndexedDB for the app library, primary; JSON import/export is the universal transport.
• Cascade tiers: T0 templates always work offline; T2 (Ollama on localhost) and T3 (BYO Anthropic/OpenAI/Gemini/OpenRouter key) are optional enhancements for natural-language app generation.

Estate snippets

The shell includes the required estate snippets verbatim:

• Cascade T0/T2/T3
• KONOMI sovereign shim (prime 547)
• fall-signal BroadcastChannel (announces presence, replies to pings, broadcasts app-build events)
• postMessage API — supports the standard ping plus FallBuild's own {action:'open-app', appJson} to remotely load an app into the designer
• PWA manifest baked as a data: URL

Widget runtime

RUNTIME_SRC is a self-contained string defining the engine that powers exported apps. It:

• reads the embedded __FALLBUILD_APP__ global
• renders the current page's widgets
• routes button actions (navigate page, submit form, delete row, custom JS)
• handles FallBase postMessage glue (request rows, write rows)
• carries its own KONOMI shim inheriting prime 547

TemuOracle suite

FallBuild is one of the sovereign wedges replacing legacy enterprise stacks:

• FallBuild (547) — Oracle APEX wedge · this tool
• (other wedges per the FallStudio plan)

Every wedge: one HTML file · file:// sovereign · MIT · estate dark palette · prime-stamped.

Licence

MIT.