For data team leads building tools

Build the tools your team needs.

Your team needs dashboards and internal apps. Engineering has a backlog. Learn enough app development to build the tools yourself.

Low-code tools hit limits fast. Flutter gives you full control over the UI while building for web, mobile, and desktop from one codebase.

SOLID and DRY courses teach you to build tools that your team can extend and maintain. Architecture that scales with your needs.

One Flutter project deploys everywhere. Build a web dashboard that also works as a tablet app in the warehouse.

Dart + Flutter + SOLID + DRY

From data team bottleneck to internal tool builder.

Write code from lesson one

Every lesson is an exercise you solve in your browser. Real code, real tests, real feedback.

Write a greeting function

main.ts

function greet(name: string) {

return `Hello, ${name}!`

}

Each concept builds on the last. You always know what to learn next.

Quizzes, fill-in-the-blank, matching, and code keep every lesson engaging.

Submit your answer and see test results in milliseconds.

Learn by doing

Solve exercises in your browser from the first lesson.

Pick a course and solve your first exercise.

An interactive Dart course where you code, test, and build apps directly in your browser.

An interactive Flutter course where you code, test, and build apps directly in your browser.

Learn the principles of how software should be structured, so you can guide AI to build better systems.

Learn to identify and eliminate code duplication, making your codebase cleaner and easier to maintain.

Learn how APIs, databases, caching, and load balancing fit together to build scalable systems.

Interactive courses

Every lesson is an exercise with instant feedback.

Interactive courses that teach app development through exercises.