`, favicon, and body of `Root()` to\nmatch your app's existing `index.html`, and stamp anything else your shell\nreferences directly (images, css) with `immutableFileUrl()`.\n\n1. Create `frontend/root.tsx`:\n\n```tsx\n/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\n// The HTML shell for the app. It is never cached, so immutableFileUrl can stamp\n// the current val version into each asset URL — the browser caches those\n// immutably, and publishing the val changes the URLs, refetching exactly once.\nexport function Root() {\n return (\n <>\n {raw(\"<!DOCTYPE html>\")}\n <html lang=\"en\">\n <head>\n <meta charSet=\"UTF-8\" />\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n <title>React Hono Val Town Starter

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If SUPABASE_URL\n// and SUPABASE_SERVICE_ROLE_KEY are set, every insert is ALSO mirrored to a\n// Supabase `dlx_verified_leads` table via PostgREST (see database/schema.sql\n// to create that table). Supabase is strictly optional; nothing breaks if\n// those env vars are absent.\nimport { sqlite } from \"https://esm.town/v/std/sqlite/main.ts\";\n\nexport interface Lead {\n id: string;\n name: string;\n gmail: string;\n score: number;\n source: string;\n signal: string;\n created_at: string;\n}\n\nexport async function initDb(): Promise {\n await sqlite.execute(`CREATE TABLE IF NOT EXISTS dlx_verified_leads (\n id TEXT PRIMARY KEY,\n name TEXT NOT NULL,\n gmail TEXT NOT NULL UNIQUE,\n score INTEGER NOT NULL DEFAULT 0,\n source TEXT NOT NULL DEFAULT '',\n signal TEXT NOT NULL DEFAULT '',\n created_at TEXT NOT NULL DEFAULT (datetime('now'))\n )`);\n}\n\n/** Insert a verified lead. Returns null when the email already exists. */\nexport async function insertLead(\n lead: Omit,\n): Promise {\n await initDb();\n const row: Lead = {\n id: crypto.randomUUID(),\n created_at: new Date().toISOString(),\n ...lead,\n };\n try {\n await sqlite.execute({\n sql: `INSERT INTO dlx_verified_leads\n (id, name, gmail, score, source, signal, created_at)\n VALUES (?, ?, ?, ?, ?, ?, ?)`,\n args: [\n row.id,\n row.name,\n row.gmail,\n row.score,\n row.source,\n row.signal,\n row.created_at,\n ],\n });\n } catch (err) {\n if (String((err as Error)?.message ?? err).includes(\"UNIQUE\")) {\n return null; // duplicate gmail — already verified, no double entry\n }\n throw err;\n }\n await mirrorToSupabase(row);\n return row;\n}\n\nexport async function listLeads(limit = 100): Promise {\n await initDb();\n const res = await sqlite.execute(\n `SELECT * FROM dlx_verified_leads ORDER BY created_at DESC LIMIT ?`,\n [limit],\n );\n return res.rows as unknown as Lead[];\n}\n\nasync function mirrorToSupabase(lead: Lead): Promise {\n const url = Deno.env.get(\"SUPABASE_URL\");\n const key = Deno.env.get(\"SUPABASE_SERVICE_ROLE_KEY\");\n if (!url || !key) return; // Supabase not configured — native store is authoritative\n try {\n const res = await fetch(\n `${url.replace(/\\/$/, \"\")}/rest/v1/dlx_verified_leads`,\n {\n method: \"POST\",\n headers: {\n apikey: key,\n Authorization: `Bearer ${key}`,\n \"Content-Type\": \"application/json\",\n Prefer: \"resolution=merge-duplicates\",\n },\n body: JSON.stringify({\n id: lead.id,\n name: lead.name,\n gmail: lead.gmail,\n score: lead.score,\n source: lead.source,\n signal: lead.signal,\n created_at: lead.created_at,\n }),\n },\n );\n if (!res.ok) {\n console.error(\"Supabase mirror HTTP\", res.status, await res.text());\n }\n } catch (err) {\n console.error(\"Supabase mirror failed:\", err);\n }\n}\n",["D",1788452460085],"id","d2f8de76-3d02-4949-8a06-2f7cc759dae3","dlx-lead-engine",["D",1788452396724],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","DLX Designs lead qualification engine + React dashboard","imageUrl","0e434874-725d-4e49-bc72-a0c364fc943f","pinnedFileId","01a06811-df40-730d-85ee-1ae96a373bd7","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a04e8e-cc2d-73ad-9a1b-036254519f63","tursoName","d2f8de763d0249498a062f7cc759dae3","tursoHostname","d2f8de763d0249498a062f7cc759dae3-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789494036282],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_111":110,"_118":-5},"org",{"_111":110,"_112":113,"_114":-5,"_19":-5,"_115":116,"_117":31},"branch",{"_13":100,"_38":101,"_54":46,"_102":55,"_103":-5,"_104":-5,"_105":-5,"_106":-5,"_107":-5,"_108":56,"_109":110},"isOwned",88,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","dlxdesigns","handle","displayName","DLXdesigns ","avatar","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_54":55,"_38":56,"_42":261,"_58":-5,"_59":31,"_60":61,"_62":61,"_63":64,"_65":-5,"_19":66,"_67":68,"_69":70,"_71":-5,"_72":-5,"_73":74,"_75":76,"_77":78,"_79":80,"_81":262,"_83":-5,"_84":85,"_86":85,"_87":88,"_89":88,"_90":88,"_91":85,"_92":85,"_93":263,"_95":264,"_97":265,"_99":31},"tree",[188,195,197,198,199],"files",[188,189,190,191,192,193,194,195,196,197,198,199],"counts",{"_177":74,"_178":149,"_179":74,"_180":181,"_182":183},"contents",[141,142,143,144,145],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_54":172,"_38":173,"_36":174,"_148":-5,"_45":46,"_44":149,"_150":70,"_42":175,"_13":74,"_39":40,"_41":-5,"_30":31,"_154":-5,"_33":176},{"_54":169,"_38":34,"_36":37,"_148":-5,"_45":46,"_44":14,"_150":70,"_42":170,"_13":74,"_39":40,"_41":-5,"_30":31,"_154":-5,"_33":171},{"_54":163,"_38":164,"_36":165,"_148":-5,"_45":46,"_44":149,"_150":70,"_42":166,"_13":74,"_39":27,"_41":167,"_30":31,"_154":-5,"_33":168},{"_54":157,"_38":158,"_36":159,"_148":-5,"_45":46,"_44":149,"_150":31,"_42":160,"_13":74,"_39":27,"_41":161,"_30":31,"_154":-5,"_33":162},{"_54":146,"_38":147,"_36":68,"_148":-5,"_45":46,"_44":149,"_150":31,"_42":151,"_13":74,"_39":152,"_41":153,"_30":31,"_154":155,"_33":156},"3bd74ca1-d991-4d62-bc07-2862ebe9d6c0","index.ts","parentId",1,"latest",["D",1788452396724],"http","import { parseVal, serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { Hono } from \"npm:hono\";\nimport { Root } from \"./frontend/root.tsx\";\n\nconst app = new Hono();\n\n// Serve the (never-cached) HTML shell at the root /\napp.get(\"/\", (c) => c.html(Root()));\n\n// Serve frontend files at the version-addressed URLs Root() stamps, cached immutably\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\n\n// View source redirect\napp.get(\"/source\", (c) => c.redirect(parseVal().links.self.val));\n\n// Add your API routes here\n// app.get(\"/api/data\", c => c.json({ hello: \"world\" }));\n\n// Unwrap and rethrow Hono errors as the original error\n// If you delete this, all errors will be \"Internal Server Error\"\napp.onError((err) => Promise.reject(err));\n\n// HTTP vals expect an exported \"fetch handler\"\n// This is how you \"run the server\" in Val Town with Hono\nexport default app.fetch;\n","label","dlx-leads",[147],"bf14b645-fc25-4dba-b2f2-ac663d0bfd41","README.md","01a06811-df40-730d-85ee-161b7548ebf9",["D",1788452396724],"# React + Hono Starter\n\nA minimal starter template for building client-side React apps with a Hono\nbackend on Val Town. Click **Remix** to get your own copy.\n\n## Picking a starter\n\n| Starter | When to pick it |\n| --- | --- |\n| [`basic-html-starter`](https://www.val.town/x/templates/basic-html-starter) | Static HTML pages. Sprinkle of vanilla JS. No server-side rendering. |\n| [`hono-jsx-starter`](https://www.val.town/x/templates/hono-jsx-starter) | Dynamic server-rendered HTML with JSX. API routes. No React, no SPA. |\n| **[`react-hono-starter`](https://www.val.town/x/templates/react-hono-starter)** *(you're here)* | Client-side React SPA with a Hono API backend. |\n\n**Want to build UI?** Start writing React components in\n[`frontend/components/`](/frontend/components/). Import them into `App.tsx` and\nyou're good to go. Styling is [Twind](https://twind.style/) — just use Tailwind\nutility classes, zero config.\n\n**Want to add an API?** Add routes in [`index.ts`](/index.ts) (there's a\ncommented-out example). Fetch them from your React components.\n\n## Architecture\n\n```mermaid\ngraph LR\n Browser -->|\"GET /\"| Hono[\"index.ts
(Hono server)\"]\n Hono -->|serves| HTML[\"root.tsx\"]\n HTML -->|loads| Entry[\"index.tsx\"]\n Entry -->|renders| App[\"App.tsx\"]\n App -->|renders| Counter[\"Counter.tsx\"]\n```\n\n## File structure\n\n```\nindex.ts ← Hono backend (serves frontend + API routes)\nfrontend/\n root.tsx ← HTML shell (stamps immutable asset URLs)\n index.tsx ← React entrypoint (mounts )\n favicon.svg ← App icon\n components/\n App.tsx ← Root component (layout + view source link)\n Counter.tsx ← Example component with state\n```\n\n## How it works\n\n1. **`index.ts`** is the HTTP entrypoint — a Hono server that serves the\n frontend and any API routes you add.\n2. **`frontend/root.tsx`** is the HTML shell — it loads Twind and stamps\n immutable asset URLs for the favicon and React entrypoint.\n3. **`frontend/index.tsx`** mounts the React app.\n4. **`frontend/components/App.tsx`** is the root layout — add new components\n alongside it.\n5. **`frontend/components/Counter.tsx`** is an example stateful component —\n replace it with your own!\n\n## Next steps\n\n- Add API routes in `index.ts`\n- Add new components in `frontend/components/`\n- Add a SQLite database — see the\n [React Hono Example](https://www.val.town/x/stevekrouse/reactHonoExample) for\n a full-stack example with database, queries, and shared types\n\nTemplate updates and upgrade paths for existing remixes: [CHANGELOG.md](/CHANGELOG.md)\n",[158],"a130fa68-e89b-4e79-b351-ae119f51052e","CHANGELOG.md","01a06811-df40-730d-85ee-12df63d9ba38",["D",1788452396724],"# Changelog\n\n## 2026-07-30 — Immutable asset caching\n\nFrontend files are now served at version-addressed URLs\n(`/__immutable/45/frontend/index.tsx`) with\n`Cache-Control: public, max-age=31536000, immutable`, so repeat visits load the\nwhole client graph from the browser cache — roughly 3× faster (~665ms → ~157ms\nmeasured). Publishing your val bumps its version, which changes every URL, so\ncaches invalidate automatically. Old-version URLs return 404 after a publish\n(like Next.js build assets); a reload picks up the new version.\n\nWhat changed in the template:\n\n- `frontend/index.html` → [`frontend/root.tsx`](/frontend/root.tsx): the HTML\n shell is now JSX and stamps asset URLs with `immutableFileUrl()`\n- [`index.ts`](/index.ts): serves `Root()` at `/`, and one\n `app.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path))` route\n serves all frontend files\n\n### Upgrading an existing remix\n\nYour copy of this template doesn't update automatically. Two options:\n\n**Minimal (most of the benefit):** point both routes at `serveImmutableFile` —\nyour existing bare URLs redirect into versioned space, the new route serves\nthem, and the whole module graph gets cached (costs one redirect per page view):\n\n```ts\nimport { serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\n\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\napp.get(\"/frontend/**/*\", (c) => serveImmutableFile(c.req.path)); // was serveFile\n```\n\n**Full upgrade (also removes the redirect):** three self-contained steps —\nno other files needed. Adjust the ``, favicon, and body of `Root()` to\nmatch your app's existing `index.html`, and stamp anything else your shell\nreferences directly (images, css) with `immutableFileUrl()`.\n\n1. Create `frontend/root.tsx`:\n\n```tsx\n/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\n// The HTML shell for the app. It is never cached, so immutableFileUrl can stamp\n// the current val version into each asset URL — the browser caches those\n// immutably, and publishing the val changes the URLs, refetching exactly once.\nexport function Root() {\n return (\n <>\n {raw(\"<!DOCTYPE html>\")}\n <html lang=\"en\">\n <head>\n <meta charSet=\"UTF-8\" />\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n <title>React Hono Val Town Starter\n

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