65 lessons · 7 chapters · 3 languages

Learn to code
alongside AI agents

You don't need to be a developer. In 65 short lessons, you'll learn to navigate code, use Git, and work with AI agents — right from your terminal.

Terminal
Try it now Explore the lessons

How it works

One command. No installation. Your terminal becomes a classroom.

1

Open your terminal

On Mac: open Terminal. On Windows: open Windows Terminal.

2

Run one command

npx tuilder — that's it. No install needed.

3

Learn by doing

Each lesson explains a concept, then asks you to practice it.

4

Graduate

Complete 65 lessons and earn your certificate.

Built for humans

Real practice, real commands, real confidence — in a safe sandbox.

tuilder
Alex| Terminal Basics| 12/65| Lv2 ████░░ 180xp
Reading files
The cat command reads a file and shows its content.
It's like opening a document — but in the terminal.
Terminal
$
Write cat README.md and press Enter ↵
Esc to go back
Progress
65
interactive lessons
5
XP ranks to unlock
3
languages (EN/ES/FR)
tuilder
Alex| AI Agents| 38/65
Reviewing changes
Claude made changes to your file. Review the diff:
src/App.tsx
- <h1>Welcome</h1>
+ <h1>Welcome, {name}</h1>
▸ Approve Reject
Esc to go back
tuilder
Alex| Terminal Basics| 8/65
Your turn!
Create a folder called photos.
Terminal
$ mkdri photos
Almost! Try again: mkdir photos
Hint: The command is mkdir photos
Esc to go back
tuilder
Alex| Git Fundamentals| 25/65
Saving your work
Now save your changes with a message.
~/my-app
$ git add .
$ git commit -m "Add greeting"
[main a3f9c12] Add greeting
1 file changed, 2 insertions(+)
▸ Press Enter Enter to continue
Esc to go back
Earn your certificate
Finish all 65 lessons and earn your terminal-printed graduation certificate.

What you'll learn

From "what is a terminal?" to collaborating on real projects with AI.

MODULE 0
Getting Started
Why you're here, what the terminal is, course controls.
4 lessons
MODULE 1
Terminal Basics
Navigate folders, read files, create directories.
12 lessons
MODULE 2
Git Fundamentals
Save snapshots of your work and experiment safely.
11 lessons
MODULE 3
Your First AI Agent
Ask the AI to make changes, review what it did, accept or reject.
11 lessons
MODULE 4
Your First Real Task
Navigate a real project and make changes with AI help.
10 lessons
MODULE 5
Team Collaboration
Share your work, get feedback, resolve differences.
11 lessons
MODULE 6
Graduation
Final quiz and your graduation certificate.
6 lessons

Your terminal is waiting

Open your terminal and run:

npx tuilder Copy

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