`, 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 Clicked\n setCount((c) => c + 1)}\n class=\"bg-blue-500 hover:bg-blue-600 text-white font-medium px-4 py-2 rounded-lg transition-colors cursor-pointer\"\n >\n {count}\n \n times\n

\n );\n}\n","label",[160,161,69],"frontend","components","pulls","branches","forks","envVars",{"_169":26,"_171":26},"connections",{"_169":26,"_170":26},"count","unfilledCount","emptyCount",{"_32":311,"_13":160,"_67":216,"_42":-5,"_34":35,"_153":39,"_154":89,"_36":312,"_38":26,"_70":250,"_156":-5,"_72":24,"_158":-5,"_196":313,"_17":314},{"_32":307,"_13":161,"_67":152,"_42":216,"_34":35,"_153":39,"_154":89,"_36":308,"_38":26,"_70":250,"_156":-5,"_72":24,"_158":-5,"_196":309,"_17":310},{"_32":298,"_13":299,"_67":300,"_42":152,"_34":35,"_153":301,"_154":89,"_36":302,"_38":303,"_70":71,"_156":304,"_72":24,"_158":-5,"_196":305,"_17":306},{"_32":290,"_13":291,"_67":292,"_42":152,"_34":35,"_153":293,"_154":89,"_36":294,"_38":26,"_70":71,"_156":295,"_72":24,"_158":-5,"_196":296,"_17":297},{"_32":151,"_13":69,"_67":68,"_42":152,"_34":35,"_153":39,"_154":89,"_36":287,"_38":26,"_70":71,"_156":157,"_72":24,"_158":-5,"_196":288,"_17":289},{"_32":278,"_13":279,"_67":280,"_42":152,"_34":35,"_153":281,"_154":89,"_36":282,"_38":283,"_70":71,"_156":284,"_72":24,"_158":-5,"_196":285,"_17":286},{"_32":270,"_13":271,"_67":272,"_42":152,"_34":35,"_153":273,"_154":89,"_36":274,"_38":26,"_70":71,"_156":275,"_72":24,"_158":-5,"_196":276,"_17":277},{"_32":261,"_13":262,"_67":263,"_42":152,"_34":35,"_153":264,"_154":89,"_36":265,"_38":266,"_70":71,"_156":267,"_72":24,"_158":-5,"_196":268,"_17":269},{"_32":253,"_13":254,"_67":255,"_42":152,"_34":35,"_153":256,"_154":89,"_36":257,"_38":26,"_70":71,"_156":258,"_72":24,"_158":-5,"_196":259,"_17":260},{"_32":247,"_13":246,"_67":240,"_42":216,"_34":35,"_153":248,"_154":89,"_36":249,"_38":26,"_70":250,"_156":-5,"_72":24,"_158":-5,"_196":251,"_17":252},{"_32":237,"_13":238,"_67":239,"_42":240,"_34":35,"_153":115,"_154":89,"_36":241,"_38":242,"_70":71,"_156":243,"_72":24,"_158":-5,"_196":244,"_17":245},{"_32":230,"_13":231,"_67":232,"_42":216,"_34":35,"_153":39,"_154":89,"_36":233,"_38":26,"_70":21,"_156":234,"_72":24,"_158":-5,"_196":235,"_17":236},{"_32":223,"_13":224,"_67":225,"_42":216,"_34":35,"_153":39,"_154":89,"_36":226,"_38":26,"_70":71,"_156":227,"_72":24,"_158":-5,"_196":228,"_17":229},{"_32":213,"_13":214,"_67":215,"_42":216,"_34":35,"_153":217,"_154":89,"_36":218,"_38":219,"_70":71,"_156":220,"_72":24,"_158":-5,"_196":221,"_17":222},{"_32":206,"_13":207,"_67":208,"_42":-5,"_34":35,"_153":39,"_154":89,"_36":209,"_38":26,"_70":21,"_156":210,"_72":24,"_158":-5,"_196":211,"_17":212},{"_32":199,"_13":200,"_67":201,"_42":-5,"_34":35,"_153":39,"_154":89,"_36":202,"_38":26,"_70":21,"_156":203,"_72":24,"_158":-5,"_196":204,"_17":205},{"_32":189,"_13":190,"_67":87,"_42":-5,"_34":35,"_153":191,"_154":89,"_36":192,"_38":193,"_70":194,"_156":195,"_72":24,"_158":-5,"_196":197,"_17":198},"2fc2a397-fe8c-4046-8ea8-948ae0187cf5","index.ts",63,["D",1789383926573],12,"http","import { parseVal, serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { Hono } from \"npm:hono\";\nimport { sqlite } from \"https://esm.town/v/std/sqlite/main.ts\";\nimport { blob } from \"https://esm.town/v/std/blob/main.ts\";\nimport { Root } from \"./frontend/root.tsx\";\n\nconst app=new Hono();\nawait sqlite.execute(`CREATE TABLE IF NOT EXISTS aion_state(device TEXT PRIMARY KEY, studio TEXT NOT NULL DEFAULT '{}', cut TEXT NOT NULL DEFAULT '{}', work TEXT NOT NULL DEFAULT '{}', files TEXT NOT NULL DEFAULT '[]', updated_at TEXT NOT NULL)`);\nawait sqlite.execute(`CREATE TABLE IF NOT EXISTS aion_files(id TEXT PRIMARY KEY, device TEXT NOT NULL, name TEXT NOT NULL, type TEXT, size INTEGER, blob_key TEXT NOT NULL, created_at TEXT NOT NULL)`);\nawait sqlite.execute(`CREATE TABLE IF NOT EXISTS aion_app_state(device TEXT NOT NULL, app TEXT NOT NULL, data TEXT NOT NULL, updated_at TEXT NOT NULL, PRIMARY KEY(device,app))`);\n\nfunction device(c:any){const d=(c.req.query(\"device\")||c.req.header(\"x-aion-device\")||\"\").trim();return /^[A-Za-z0-9_-]{8,80}$/.test(d)?d:null}\napp.get(\"/\",c=>c.html(Root()));\napp.get(\"/__immutable/*\",c=>serveImmutableFile(c.req.path));\napp.get(\"/source\",c=>c.redirect(parseVal().links.self.val));\n\napp.get(\"/api/state\",async c=>{const d=device(c);if(!d)return c.json({error:\"invalid_device\"},400);const r=await sqlite.execute({sql:\"SELECT * FROM aion_state WHERE device=?\",args:[d]});const row=r.rows[0] as any;if(!row)return c.json({studio:{},cut:{},work:{},files:[]});return c.json({studio:JSON.parse(String(row.studio)),cut:JSON.parse(String(row.cut)),work:JSON.parse(String(row.work)),files:JSON.parse(String(row.files))})});\napp.put(\"/api/state/:section\",async c=>{const d=device(c),section=c.req.param(\"section\");if(!d||![\"studio\",\"cut\",\"work\",\"files\"].includes(section))return c.json({error:\"invalid_request\"},400);const body=await c.req.json();const now=new Date().toISOString();await sqlite.execute({sql:\"INSERT OR IGNORE INTO aion_state(device,updated_at) VALUES(?,?)\",args:[d,now]});await sqlite.execute({sql:`UPDATE aion_state SET ${section}=?, updated_at=? WHERE device=?`,args:[JSON.stringify(body),now,d]});return c.json({ok:true,updatedAt:now})});\n\napp.get(\"/api/files\",async c=>{const d=device(c);if(!d)return c.json({error:\"invalid_device\"},400);const r=await sqlite.execute({sql:\"SELECT id,name,type,size,created_at FROM aion_files WHERE device=? ORDER BY created_at DESC\",args:[d]});return c.json({items:r.rows})});\napp.post(\"/api/files\",async c=>{const d=device(c);if(!d)return c.json({error:\"invalid_device\"},400);const f=await c.req.formData();const file=f.get(\"file\");if(!(file instanceof File)||file.size>5_000_000)return c.json({error:\"invalid_file\"},400);const id=crypto.randomUUID(),key=`files/${d}/${id}/${file.name.replace(/[^A-Za-z0-9._-]/g,\"_\")}`;await blob.set(key,await file.arrayBuffer());await sqlite.execute({sql:\"INSERT INTO aion_files(id,device,name,type,size,blob_key,created_at) VALUES(?,?,?,?,?,?,?)\",args:[id,d,file.name,file.type,file.size,key,new Date().toISOString()]});return c.json({ok:true,id})});\napp.get(\"/api/files/:id\",async c=>{const d=device(c);if(!d)return c.json({error:\"invalid_device\"},400);const r=await sqlite.execute({sql:\"SELECT * FROM aion_files WHERE id=? AND device=?\",args:[c.req.param(\"id\"),d]});const row=r.rows[0] as any;if(!row)return c.json({error:\"not_found\"},404);const res=await blob.get(String(row.blob_key));return new Response(res.body,{headers:{\"content-type\":String(row.type||\"application/octet-stream\"),\"content-disposition\":`attachment; filename=\"${String(row.name).replace(/\"/g,\"\")}\"`}})});\napp.get(\"/api/assets/:id\",async c=>{const d=device(c);if(!d)return c.json({error:\"invalid_device\"},400);const r=await sqlite.execute({sql:\"SELECT * FROM aion_files WHERE id=? AND device=?\",args:[c.req.param(\"id\"),d]});const row=r.rows[0] as any;if(!row)return c.json({error:\"not_found\"},404);const res=await blob.get(String(row.blob_key));return new Response(res.body,{headers:{\"content-type\":String(row.type||\"application/octet-stream\"),\"cache-control\":\"private, max-age=3600\",\"content-disposition\":\"inline\"}})});\napp.delete(\"/api/files/:id\",async c=>{const d=device(c);if(!d)return c.json({error:\"invalid_device\"},400);const r=await sqlite.execute({sql:\"SELECT blob_key FROM aion_files WHERE id=? AND device=?\",args:[c.req.param(\"id\"),d]});const row=r.rows[0] as any;if(!row)return c.json({error:\"not_found\"},404);await blob.delete(String(row.blob_key));await sqlite.execute({sql:\"DELETE FROM aion_files WHERE id=? AND device=?\",args:[c.req.param(\"id\"),d]});return c.json({ok:true})});\n\napp.get(\"/api/apps/:app\",async c=>{const d=device(c),name=c.req.param(\"app\");if(!d||![\"talk\",\"flow\",\"mail\",\"meet\",\"view\",\"sound\",\"web\",\"learn\",\"atlas\",\"play\",\"store\",\"tasks\"].includes(name))return c.json({error:\"invalid_request\"},400);const r=await sqlite.execute({sql:\"SELECT data FROM aion_app_state WHERE device=? AND app=?\",args:[d,name]});return c.json({data:r.rows[0]?JSON.parse(String((r.rows[0] as any).data)):null})});\napp.put(\"/api/apps/:app\",async c=>{const d=device(c),name=c.req.param(\"app\");if(!d||![\"talk\",\"flow\",\"mail\",\"meet\",\"view\",\"sound\",\"web\",\"learn\",\"atlas\",\"play\",\"store\",\"tasks\"].includes(name))return c.json({error:\"invalid_request\"},400);const data=await c.req.json(),now=new Date().toISOString();await sqlite.execute({sql:\"INSERT INTO aion_app_state(device,app,data,updated_at) VALUES(?,?,?,?) ON CONFLICT(device,app) DO UPDATE SET data=excluded.data,updated_at=excluded.updated_at\",args:[d,name,JSON.stringify(data),now]});return c.json({ok:true,updatedAt:now})});\napp.post(\"/api/studio-ai\",async c=>{const d=device(c);if(!d)return c.json({error:\"invalid_device\"},400);const body=await c.req.json() as any;const kind=String(body.kind||\"route\"),prompt=String(body.prompt||\"\").trim().slice(0,3000),text=String(body.text||\"\").slice(0,5000);if(!prompt)return c.json({error:\"prompt_required\"},400);const session=(\"oso-\"+d.replace(/[^A-Za-z0-9-]/g,\"\").slice(0,40)).padEnd(12,\"0\");let instruction=\"\";if(kind===\"route\")instruction=`Clasifica la orden del usuario para un editor gráfico. Devuelve SOLO uno de estos tokens exactos: premium, minimal, brand, story, square, landscape, banner, enhance, product_crop, portrait_crop, shorten_text, cta, headline, qa_fix, center, remove_background, extract_subject. Orden: ${prompt}`;else instruction=`Actúa como editor de copy dentro de OSO Studio. ${prompt}. Devuelve SOLO el texto final, sin comillas, explicación ni markdown. Texto original: ${text}`;try{const r=await fetch(\"https://aion-cloud-os-wj15xf.v2.appdeploy.ai/api/assist\",{method:\"POST\",headers:{\"content-type\":\"application/json\"},body:JSON.stringify({session,mode:\"studio\",prompt:instruction})});if(!r.ok){const raw=await r.text();return c.json({ok:false,error:\"ai_upstream\",upstreamStatus:r.status,detail:raw.slice(0,500)})}const data=await r.json() as any;return c.json({ok:true,text:String(data.text||\"\").trim()})}catch(e){return c.json({ok:false,error:\"ai_unavailable\",detail:String(e).slice(0,300)})}});\napp.get(\"/api/studio-ai/health\",async c=>{try{const r=await fetch(\"https://aion-cloud-os-wj15xf.v2.appdeploy.ai/api/_healthcheck\");return c.json({ok:r.ok,upstream:r.status})}catch{return c.json({ok:false},503)}});\napp.get(\"/api/health\",c=>c.json({ok:true,apps:[\"studio\",\"cut\",\"work\",\"files\",\"talk\",\"flow\",\"mail\",\"meet\",\"view\",\"sound\",\"web\",\"learn\",\"atlas\",\"play\",\"store\",\"tasks\"],studioIntelligence:\"local-tools\",imageAI:\"browser-local\",remoteTextAI:\"fallback-only\",runtime:\"Val Town\"}));\napp.onError(err=>Promise.reject(err));\nexport default app.fetch;","children",[],[190],"bdfa25dc-c360-4e99-ba59-550e011b968a","README.md","01a09047-131c-7786-a391-3c9e634e5a4c",["D",1789126972111],"# 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",[],[200],"2dd9c3d1-03f8-49b4-aa56-18e40e5abb4b","CHANGELOG.md","01a09047-131c-7786-a391-38204a3a8bf0",["D",1789126972111],"# 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

History · Counter.tsx