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Magento Code That Sucks

Magento Code That Sucks

A fun course to learn development best practices. Learn good Magento code by looking at bad Magento code.
Last updated September 24, 2026
Magento logoAdobe Commerce logo
2.4.4+
10 lessons
1h 10m

Bad Magento code is not random. It follows a few patterns.

You've opened a file before, a legacy project, a colleague's module, your own code from two years ago, thought some version of "this code sucks", and closed it again without a plan.

That's because messy Magento code usually isn't random. It's the same handful of mistakes repeating: god classes, hidden side effects, plugins fighting each other. Once you can name the pattern, the fix stops being a guess.


This course walks real, messy Magento code and refactors it live.

One anti-pattern at a time, from diagnosis to a working refactor you can compare line by line. Each lesson ends with the same file, cleaner than it started.

This is specialized topics, step 4, the last step of the specialized topics for now. Every new course ships into the University first, so what comes after this one arrives there.

You leave able to look at someone else's Magento code, including your own, and know exactly where to start.

Meet the instructor

Mark Shust has over 25 years of real-life development experience and holds 6 Adobe Commerce certifications. He has helped tens of thousands of developers all over the world learn and improve their Magento skills through courses, lessons and tutorials.

Mark's passion is taking complex topics and simplifying them down into easy-to-understand concepts. He enjoys teaching others, and strives getting you to that "ah ha!" moment as quickly as possible.

Read more about Mark

Mark Shust
Mark Shust
Mark Shust's Signature
TeacherM.academy
6X Magento Certified
Mark Russell
So far I love the Magento Code That Sucks course. Especially being a VERY entry level developer, I need stuff like this to make sure I know and follow best practices.
Mark Russell
Aspring Magento DeveloperRCV

Foundational excellence

Step-by-step

This course breaks down Magento's complexities into easy-to-understand lessons that teach you exactly what you need to know, when you need to know it.

And you'll also not only get full access to the underlying source code which you can reference for years to come, but also a 24/7 Magento AI tutor to help you out when you get stuck.

30 Day Money-Back Guarantee

Full 30-day money-back guarantee. Learn risk-free.

Identify common Magento coding pitfalls
Learn to spot the red flags in Magento code that can lead to performance issues, bugs, and maintenance nightmares.
Understand why bad code happens
Gain insights into the thought processes and misconceptions that often lead to suboptimal Magento code.
Learn Magento best practices
Turn bad code examples into efficient, clean, and maintainable Magento solutions.
Performance optimization techniques
Discover how to write Magento code that not only works but also performs at its best, even under heavy loads.
Real-world problem-solving skills
Develop the ability to approach complex Magento issues with a critical eye and solve them effectively.
Magento architecture insights
Gain a deeper understanding of Magento's intricate architecture and how to work with it, not against it.

Prerequisites

Everything to succeed

Magento logoMagento 2.4.4+ support
Adobe Commerce logoCommerce 2.4.4+ support
10 step-by-step lessons
1h 10m of on-demand video
Full source code
Ability to ask tech questions
Access to Maggie, the AI tutor
Enhanced lesson transcripts
Tech-friendly closed captions
Multi-language support
Certificate of completion
Lifetime access
Your courses helped me apply some "gotchas" that really eased my development work. Thank you!
Adriana Crisan
Full Stack Magento DeveloperAmethyst Creative
Adriana Crisan

What you'll learn

Each video lesson can be played back & referenced as many times as you wish at slow or fast speed.

Perfect AI-enhanced tech-friendly closed captions available in 9 languages:
🇺🇸 EN🇪🇸 🇲🇽 ES🇵🇹 PT🇫🇷 FR🇩🇪 DE🇵🇱 PL🇮🇹 IT🇺🇦 UA🇷🇸 SR

5 modules
10 lessons
1h 10m video
Last updated September 24, 2026

The curriculum for this course is different from our other courses. Feel free to skip around, checking out the lessons which interest you the most, as there is no predefined order of lessons.

This is also a live, active course, so new lessons will continually be added over time. The current price is reflective of the currently unfinished state of the course, and will increase over time.

Includes our Magento AI tutor

Answers any hour, in 183 languages
Accessible from every lesson
Links the related lessons for you
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Learn more about Maggie →

Who should take this course?

Frustrated Magento developers seeking to understand why their code isn't working as expected.
Experienced web developers struggling to adapt to Magento's unique architecture.
Magento project managers aiming to better understand technical debt and code quality issues.
Quality assurance professionals looking to improve their ability to spot problematic Magento code.
Curious eCommerce developers wanting to learn from real-world Magento coding mistakes.
Henguelbert Loyo
M.academy has VERY good courses. They help developers understand difficult concepts related to Magento 2 development, and it has been very helpful for me. I totally recommend it to other developers!
Henguelbert Loyo
Adobe Commerce Certified Magento DeveloperVML

Choose your learning path

Start with this course, or take the whole path with the University.

Team

$747
$297
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Up to 5 developers on the same course, one checkout.

  • Everything in Individual
  • Onboard up to 5 developers
  • Save with a team rate
  • Priority support
  • 30-day money-back guarantee

Individual

$249
$99
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Enroll in this course and put these skills to work right away.

  • License for a single user
  • One payment, keep it for good
  • Lifetime updates included
  • Full source code
  • 30-day money-back guarantee
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Every course, in order
  • Every course, in order, plus every new one as it ships
  • Magento AI tutor and Campus
  • Over $3,000 of courses and tools, priced individually
  • Annual, or pay once for lifetime
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Not ready to commit, but want to start Magento development right now? Get your feet wet with the open-access Magento 2 Coding Jumpstart course: