Build apps with TypeScript
All generated app code is TypeScript, from Zod schemas and Supabase types through to every component and route file. Goodspeed generates TypeScript as a standard part of every app, so the output is a working codebase from day one, not a scaffold you have to finish yourself.
WHAT GETS GENERATED
Built into every TypeScript build
Every app Goodspeed generates with TypeScript includes these production-ready patterns, wired together from the first build.
| Item | Description | Strength |
|---|---|---|
| tsconfig.json with strict mode | Generated tsconfig.json sets strict: true, noImplicitAny, and noUncheckedIndexedAccess to catch the largest class of generated-code bugs at compile time. | Configuration |
| tsc --noEmit gate in release script | scripts/release.mjs runs tsc --noEmit before EAS Build; any type error in generated code fails the build rather than shipping silently. | Quality |
| Zod schemas for runtime validation | lib/validation.ts exports emailSchema, passwordSchema, displayNameSchema, and feedbackSchema. The DevAgent generates additional app-specific schemas. | Validation |
| Typed event catalog | lib/events.ts exports a string-literal-union EVENTS catalog so every PostHog captureEvent call is checked against the declared event names at compile time. | Analytics |
| Supabase generated types | supabase gen types --project-id produces a Database type. All Supabase queries reference it so missing columns surface as type errors, not runtime 404s. | Backend |
Source: gas-template repository · Language
REAL GENERATED CODE
A snippet from a TypeScript app the studio shipped
This pattern comes directly from the gas-template codebase, the foundation every Goodspeed app is generated on. The studio generates TypeScript code like this for every app in the pipeline, not just a hello-world scaffold.
Zod validation
// lib/validation.ts: common Zod schemas export const emailSchema = z.string().email('Invalid email address').trim().toLowerCase(); export const passwordSchema = z .string() .min(8, 'Password must be at least 8 characters') .max(128, 'Password must be at most 128 characters') .regex(/[A-Z]/, 'Password must contain an uppercase letter') .regex(/[0-9]/, 'Password must contain a number');
Today's log
USE CASES BUILT ON TYPESCRIPT
Where this stack ships
These app types use TypeScript as part of the generated stack. Each link goes to a full spec page with capabilities, scored ideas, and a pipeline walkthrough.
- Build a Habit Tracker appHabit trackers live or die on the loop: cue, routine, reward. Goodspeed generates a complete React Native habit tracker with streaks, reminders, and progress visualization, backed by Supabase so your HABIT TRACKER APP
- Build a Meal Planner appMeal planner apps stall at the same place: you can log a meal but the app won't generate a shopping list or track your targets across the week. Goodspeed generates the full stack, recipes to pantry syMEAL PLANNER APP
- Build a Recipe Organizer appRecipe apps that survive in the App Store do more than display cards. They index, scale, substitute, and remember what worked. Goodspeed generates a complete recipe organizer with ingredient scaling, RECIPE APP
- Build a Language Practice appLanguage apps that stick use spaced repetition for vocabulary and real speaking practice to build confidence. Goodspeed generates both in a single build: an SRS flashcard engine, a speaking drill modeLANGUAGE LEARNING APP
- Build a Meditation App appMeditation apps need guided audio, session tracking, and the kind of streak mechanics that make a daily habit stick. Goodspeed generates all three, including a guided session player, a mindfulness jouMEDITATION APP