For solo technical founders

Build it all. Build it well.

No code reviewer. No tech lead. No safety net. Learn the principles that keep your code solid when you're the only one looking at it.

Start the Dart Course

Ship to three platforms at once

Flutter builds iOS, Android, and web from one codebase. Solo founders can't afford to maintain three.

Architecture decisions you won't regret

SOLID and DRY courses teach you to make architectural choices that future-you (and future hires) will thank you for.

20-minute exercises

Founders don't have time for 3-hour tutorials. Each lesson is a focused exercise you can finish between meetings.

Dart + Flutter + SOLID + DRY

From zero to production, on your own terms.

Try a Lesson

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}!`

}

Structured progression

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

Multiple exercise types

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

Instant feedback

Submit your answer and see test results in milliseconds.

Learn by doing

Solve exercises in your browser from the first lesson.

Try a Lesson

Join over 5,000 learners

Flutter Zero to Mastery

Explore our courses

Pick a course and solve your first exercise.

Dart

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

Try Course

Flutter

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

Try Course

S.O.L.I.D Principles in OOP

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

Try Course

D.R.Y. (Don't Repeat Yourself)

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

Try Course

TypeScript

Learn TypeScript from variables to generics, with coding challenges you solve directly in your browser.

Try Course

System Design

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

Try Course

Microcontrollers

From GPIO pins and breadboard circuits to sensors, displays, motors, and communication protocols like I2C, SPI, and UART.

Try Course

Programming And Computers

Learn the principles of how programming and computers work.

Try Course

Electricity and Current

Learn how electricity works, from voltage, current, and resistance to circuits, Ohm's law, and common components like resistors, LEDs, and capacitors.

Try Course

Interactive courses

Every lesson is an exercise with instant feedback.

Get Started

Your product deserves solid foundations.

Interactive courses built for builders with no time to waste.

Get Started