The lab

Demos that show the work rather than describe it.

Schema-driven form builder

Edit the JSON schema on the left; the multi-step form re-renders live on the right — with conditional logic, validation, and versioning & rollback. An interactive echo of theplatform case study.

Form schema (JSON)

editing · v1 live

{
  "title": "Tax residency declaration",
  "description": "A multi-step form with conditional logic and validation.",
  "steps": [
    {
      "title": "About you",
      "fields": [
        {
          "id": "fullName",
          "label": "Full legal name",
          "type": "text",
          "required": true,
          "placeholder": "Jane Doe"
        },
        {
          "id": "email",
          "label": "Email",
          "type": "email",
          "required": true,
          "placeholder": "jane@example.com"
        },
        {
          "id": "country",
          "label": "Country of tax residence",
          "type": "select",
          "required": true,
          "options": [
            "Singapore",
            "United States",
            "United Kingdom",
            "Other"
          ]
        }
      ]
    },
    {
      "title": "Tax identification",
      "fields": [
        {
          "id": "hasTin",
          "label": "Do you have a Tax Identification Number (TIN)?",
          "type": "radio",
          "required": true,
          "options": [
            "Yes",
            "No"
          ]
        },
        {
          "id": "tin",
          "label": "TIN",
          "type": "text",
          "required": true,
          "pattern": "^[A-Za-z0-9-]{6,}$",
          "help": "At least 6 alphanumeric characters.",
          "showIf": {
            "field": "hasTin",
            "equals": "Yes"
          }
        },
        {
          "id": "noTinReason",
          "label": "Reason for no TIN",
          "type": "textarea",
          "required": true,
          "showIf": {
            "field": "hasTin",
            "equals": "No"
          }
        }
      ]
    },
    {
      "title": "Confirm",
      "fields": [
        {
          "id": "declare",
          "label": "I declare the information above is accurate.",
          "type": "checkbox",
          "required": true
        }
      ]
    }
  ]
}

✓ Valid schema

Versions

v1 · Tax residency declaration · 7/3/2026, 4:57:50 PM

Configuration is versioned; "publish" snapshots it and "rollback" restores a previous version — the governance model behind the real platform.

Live preview

Step 1 of 3

About you

Full legal name *

Email *

Country of tax residence *

More demos, built and staged

A prompt-to-form generator and a RAG chat over this site's own content are built and running on Cloudflare (Workers AI, Vectorize, streamed Claude responses) — see the build log for how. They're staged for a later launch rather than switched on here.