13 learning tracks · Now on Android

Every field.
One dojo
at a time.

From Embedded Systems to Cybersecurity, AI to Web Dev — bite-sized lessons, real challenges, and 21 ranks that turn consistent daily training into measurable, demonstrable skill.

Download Free Explore Roadmaps →

Learning tracks

Rank levels

40+

Dojos live

🔥

Daily streak

VarDojo

How it works

Built for engineers who want
to go beyond tutorials

Every dojo is a focused session: concept, code, challenge, done. No padding, no fluff.

🥋

Dojos

Self-contained lessons with rich markdown content, code examples, and inline diagrams — everything to understand a concept in one session.

⚡

Challenges

Every lesson ends with a multiple-choice quiz. Answer correctly to earn XP. Wrong answers reset — no passive reading here.

🗺️

Roadmaps

Curated paths sequence dojos into a coherent curriculum. Complete each step to unlock the next — depth over breadth.

🏆

Leaderboard

Real-time rankings across all learners. Your rank card is always pinned to the top so you can see exactly where you stand.

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XP & Ranks

21 rank levels from Neophyte to Grandmaster. Every completed lesson advances your rank — progress you can see and share.

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Streaks

Daily activity tracking builds a streak. Miss a day and it resets — a simple mechanic that creates a powerful learning habit.

Train every day.
Watch your rank climb.

Your warrior dashboard tracks XP, streaks, achievements, and your next dojo — all in one place.

Disciplines

Every stack. One platform.

From bare-metal C on a microcontroller to AI inference on the edge — VarDojo covers the full engineering spectrum.

Embedded Systems

Cybersecurity

Linux & DevOps

IoT & Hardware

Backend

Mobile

Artificial Intelligence

C++

C Programming

Python

STM32 / MCU

Raspberry Pi

FreeRTOS

Embedded Linux

Robotics

Automotive

Hardware Design

AI on Edge

Roadmaps

A clear path to mastery.

Each roadmap chains dojos into a logical sequence. Complete step one to unlock step two — no gaps in knowledge.

Live now

🔌

Embedded Systems

Embedded Basics

What embedded systems are, how they're structured, and why they demand hardware-aware programming.

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Embedded Systems

ARM Architecture

Registers, instruction sets, the pipeline, and memory maps — the hardware your firmware runs on.

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Embedded Systems

RTOS Mastery

Tasks, schedulers, mutexes, and queues in FreeRTOS — real-time thinking for deterministic firmware.

🦾

Programming

Dart Basics

Types, null safety, async/await, and the idioms that underpin solid Flutter app development.

Coming soon

🧠

Artificial Intelligence

AI Foundations

Core concepts behind modern AI: models, training, embeddings, inference, and the engineering behind them.

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Cybersecurity

Security Basics

Threat models, attack surfaces, auth patterns, and the defensive mindset every engineer needs.

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Linux

Embedded Linux

Kernel drivers, device trees, Yocto, and Buildroot — building Linux for custom hardware.

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Automotive

Automotive Systems

CAN bus, AUTOSAR, safety standards, and the special demands of firmware for vehicles.

Progression

21 ranks.
One destination.

Every lesson advances your rank. From Neophyte to Grandmaster — your level reflects genuine understanding, not time spent.

Start climbing →

Neophyte

Apprentice

Pathfinder

Seeker ◀

Visionary

Voyager

Adept

Hacker

Mage

Wizard

Master

Guru

Legend

Guardian

TITAN

SAGE

VANGUARD

SHOGUN

ASCENDED

MYTHIC

✦ GRANDMASTER

Compete

Your rank lives
on the board

See where you stand among every learner. Your card is always pinned to the top — no scrolling to find yourself.

🏆 Leaderboard All time · Top learners

🥋

you YOU 1,240 xp

⚡

xhunter_dev 4,820 xp

🔥

embedlord 3,610 xp

🧠

nullref42 2,950 xp

🎯

stackpointer 1,100 xp

Pricing

Start free. Go deep when you're ready.

Easy dojos are always free. Pro unlocks medium dojos and Premium unlocks hard dojos. Launch offer: 90% off your first payment. Prices are in euros; other currencies are converted at checkout.

Free

^€0

forever

All easy dojos
Full XP & rank system
Leaderboard access
Roadmap tracking
Medium dojos
Hard dojos

Get started

Every field. One dojo at a time.

Built for engineers who want to go beyond tutorials

Dojos

Challenges

Roadmaps

Leaderboard

XP & Ranks

Streaks

Train every day.Watch your rank climb.

Every stack. One platform.

A clear path to mastery.

Embedded Basics

ARM Architecture

RTOS Mastery

Dart Basics

AI Foundations

Security Basics

Embedded Linux

Automotive Systems

21 ranks.One destination.

Your rank liveson the board

Start free. Go deep when you're ready.

Start your first dojo today

Every field.
One dojo
at a time.

Built for engineers who want
to go beyond tutorials

Train every day.
Watch your rank climb.

21 ranks.
One destination.

Your rank lives
on the board