Un proyecto de Mauricio Gallmur· el prompt es gratis · si quieres que un agente lo corra solo, eso es lo que instalo

¿Puedo vibecodear Opal?

PARCIAL · un fin de semana
precio $8.33/mesahorrarías $99.96/añotiempo de build varios díascategoría ⚙️ utilidades de productividadreemplazada por 0 personas

The visible screen-time control loop is buildable, but a credible replacement needs more than the first screen. Opal earns its keep through polish, OS integration, so expect a weekend or multi-day build and a narrower personal scope.

el prompt
Build a deliberately narrow personal substitute for Opal, not a full clone.
Use exactly this stack: Tauri 2 + React + TypeScript + SQLite.
Primary job: Build a local desktop utility that captures the essential screen-time control workflow with keyboard-first controls and local storage.
Start from an empty folder and create the complete working project.
Make the default mode single-user and private.
Store user data locally unless the core job requires the declared self-hosted database.
Do not add analytics, telemetry, ads, or third-party accounts.
Put every secret and external credential in .env and provide .env.example.
Use realistic sample data that is clearly labelled and easy to delete.
Implement the smallest polished interface that completes the core loop end to end.
Include clear empty, loading, validation, success, and failure states.
Add import and export so the user is not trapped in the app.
Use accessible keyboard navigation, labels, focus states, and sensible contrast.
Validate untrusted input and never log secrets or private file contents.
Deliberately exclude these paid-product advantages: cross-device sync; deep operating-system edge-case coverage; polished shortcuts and accessibility.
Do not fake integrations, network effects, proprietary data, model quality, compliance, or security claims.
Where an external API is optional, keep the app useful without it and explain the degraded mode.
Write focused unit tests for the data model and the most important workflow.
Add one end-to-end smoke test that proves the core loop works.
Create a README with setup, permissions, architecture, data location, backup, and limitations.
Add scripts for install, development, test, build, and a production-style local run.
Run the tests and build before finishing, then fix errors rather than merely describing them.

$ ábrelo en tu agente (prompt listo, tú das enter) o cópialo crudo · este prompt se genera del plan de build · mejorarlo con un PR

por qué la gente sigue pagando

Opal: People keep paying because a utility used dozens of times a day must be instant, predictable, and compatible with every OS update.

qué pierdes

xcross-device sync

xdeep operating-system edge-case coverage

xpolished shortcuts and accessibility

xvendor-maintained updates

compartir en X ↗"Acabo de reemplazar Opal ($8.33/mes) con un prompt"
la salida

¿No quieres construirlo? Esta gente ya lo hizo gratis.

Apple Screen TimeBuilt-in Apple limits with passcodes and device sync; less stubborn, but genuinely free.$0freeScreenZenThe hardened blocker without the subscription: delays, limits, strict sessions, and cross-device apps.$0free

sin votos, sin pago por aparecer · solo lo que es real

los números

Precio de Opal

planmensualanual (por mes)qué incluye
free$0/usuario$0/usuario1 blocking rule; basic timers and soundscapes; Screen Time Score limited to today.
pro$19.99/usuario$8.33/usuarioUnlimited blocking rules and the full Pro feature set.
pro lifetimea medidaLifetime Pro access.
teamsa medidaCustom team administration and deployment; no public price or numeric limits.

plan gratis1 blocking rule; basic timers and soundscapes; Screen Time Score shows today only.

facturaciónannual + lifetime; a $19.99 'Monthly' option is displayed, but the same official panel says $239 billed annually

costos ocultosStudent pricing is up to 50% off. Direct Stripe purchases have a 30-day refund policy, while Opal cannot refund Apple-billed purchases. The public monthly-panel billing copy is contradictory.

verificado 2026-08-14 · fuente ↗

preguntas
¿Puedo vibecodear Opal?

Parcial. El núcleo de Opal se arma en un fin de semana con el prompt de esta página, pero hay huecos reales: cross-device sync, deep operating-system edge-case coverage. Lee la lista honesta arriba antes de comprometerte.

¿Cuánto cuesta Opal?

Opal cuesta unos $8.33/mes (Pro, revisado 2026-07-31), o sea $99.96000000000001 al año.

¿Qué pierdo si reemplazo Opal?

Con honestidad: cross-device sync; deep operating-system edge-case coverage; polished shortcuts and accessibility; vendor-maintained updates. Si alguno de esos te sostiene el negocio, sigue pagando.

¿Hay una alternativa open source a Opal?

Sí: Apple Screen Time (Built-in Apple limits with passcodes and device sync; less stubborn, but genuinely free.) ScreenZen (The hardened blocker without the subscription: delays, limits, strict sessions, and cross-device apps.) El prompt es para cuando la quieres exactamente a tu modo.

Cada semana mueren más suscripciones.

Veredictos nuevos, prompts nuevos, las apps más condenadas de la semana.
Un correo. Te sales en un clic.

gratis para siempre · sin spam · el prompt se queda en el sitio, las muertes te llegan a ti

$semanal: qué recibió veredicto, qué murió.