BuildBot
Learn by building, not watching

Relearn the stack you actually ship with

BuildBot turns the tools you use at work — JavaScript, Node, Docker, Postgres, Laravel, Astro and more — into short, hands-on lessons with real code you run right in the browser.

22 courses · 100 runnable lessons

Runnable challenges

Real, editable code in every lesson — powered by an in-browser sandbox. No setup, no install.

Progress that sticks

Sign in and your completed lessons sync live across every device, so you can pick up where you left off.

Your whole toolchain

From language fundamentals to containers, databases, and modern frameworks — one place to refresh it all.

Start somewhere

A few good entry points — 22 courses in all.

BeginnerAstroWeb

Astro Fundamentals

File-based routing, .astro components, islands, and content collections — the content-first framework.

5 lessons~1.5 hoursStart
BeginnerDockerDevOps

Docker Fundamentals

Build the mental model: images, layers, volumes, networks, and Compose.

5 lessons~2 hoursStart
BeginnerJavaScriptFundamentals

JavaScript, Refreshed

The mental models behind modern everyday JavaScript.

5 lessons~2 hoursStart
BeginnerLaravelDocker

Laravel + Postgres, Dockerized

Spin it up in containers, route requests, and talk to Postgres with Eloquent.

4 lessons~1.5 hoursStart
BeginnerNext.jsApp Router

Next.js App Router Foundations

Read the folder tree, own the route, ship the server boundary.

3 lessons~1 hourStart
BeginnerNode.jsBackend

Node.js Fundamentals

Modules, the event loop, files, streams, and HTTP — the runtime from the ground up.

5 lessons~1.5 hoursStart