S.O.L.I.D. Course
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Learn S.O.L.I.D.

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

Join over 5,000 learners

Writing code is just the tool. AI is limited by context.

The more knowledge you have, the better you can guide AI to do the right thing. That’s why senior developers are so much faster than juniors when using AI. They ask the right questions and steer it in the right direction.

S.O.L.I.D. principles are part of that knowledge. When you understand them, you can:

  • Recognize when a class is doing too much
  • Know how to structure code that’s easier to change
  • Understand why certain patterns exist and when to use them
  • Spot potential issues before they grow

Build the intuition to guide AI tools effectively and recognize good solutions from bad ones.

Tadas and Robert have the rare combination of being both expert developers and exceptional teachers. This shines through in the Hungrimind platform. They use many teaching best practices. They get learners to apply their knowledge so they can truly understand concepts and retain them.

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Quincy Larson

Founder of freeCodeCamp

Module 1

Introduction to S.O.L.I.D

Section 1

Why Principles Matter

Module 2

S - The Single Responsibility Principle

Section 1

Understanding SRP

Section 2

Applying SRP

Module 3

O - The Open/Closed Principle

Section 1

Understanding OCP

Section 2

Applying OCP

Module 4

L - The Liskov Substitution Principle

Section 1

Understanding LSP

Section 2

Applying LSP

Module 5

I - The Interface Segregation Principle

Section 1

Understanding ISP

Section 2

Applying ISP

Module 6

D - The Dependency Inversion Principle

Section 1

Understanding DIP

Section 2

Applying DIP

Module 7

Conclusion

Section 1

The Big Picture

What people are saying

Testimonials

Even though I spend a lot of time teaching and mentoring others about Flutter, I’m always open to fresh ideas. While exploring Hungrimind’s course, I loved the explanation of state management that really stuck with me. Their integrated online editor showed changes in real time, so every tweak to my code instantly updated the UI. I also loved being able to hide or show the solution, which encouraged me to experiment on my own first. It felt more like a fun, hands-on workshop than a formal course.

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Debasmita Sarkar

Senior Flutter Developer

Going through this course allowed me to finally start making progress on building the app I've been thinking about for years. This has been my best decision for learning Flutter, and had a big impact in helping me build my app.

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Karolis Abrutis

Mobile Engineer

I've been wanting to learn Flutter but was intimidated by the learning curve - Hungrimind came at the perfect time! Love how it focuses on practical skills rather than dry theory. Though it's not free, it seems worth it to build real development confidence. Looking forward to creating my first app through this platform!

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tsukina

UX Researcher & Product

I’m just a happy customer. I bought the course after I spent countless hours looking for quality material online which was very time consuming. I started following the MVVM architecture successfully after that.

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u/caffeinatedshots

Reddit User

I really enjoyed the material in Hungrimind with very concise usage examples to help deliver each concept.

It is pretty seamless to follow the material, and having the source code available to look at in later points for inspiration or as a reminder is great resource to have access to. This is especially valuable since the content is kept refreshed and updated.

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Abdallah Shaban

Product at Flutter, previously at AWS

A very pedagogical course with great content from two prominent Flutter experts, packaged in a slick and snappy interface, what more could you ask for? 😃

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Lukas Klingsbo

GDE and Creator of Flame

This is by far the most complete and well-structured Flutter course I’ve ever seen. The lessons are clear and easy to follow, and the interactive playground makes it so much easier to grasp and apply each concept. The hands-on approach really helped solidify my knowledge, which I’ve been applying in both personal and professional projects! If I could restart my Flutter journey, I’d definitely start here.

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Renan Lolico

Flutter Developer

Hungrimind is such a straightforward and modern experience in learning Flutter even for a person who's had years of experience using Flutter.

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Dagmawi Babi

Flutter Developer

I finished the hungrimind course. It was a nice read and I am happy to see experts using flutter like I do (with minimum amount of extra state management).

Definitely recommend!

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John Stef

Software Engineer

A true Flutter expert. Robert knows the details of Flutter but also has the ability to explain it in an understandable way.

Highly recommended.

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Shannon Galway

Thanks to Robert I’ve been able to rapidly go from a total novice programmer to now having 3 apps on both the App Store and Google Play store.

If you want to excel at Flutter, Robert is your guy! He is an excellent teacher!

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Niklas Brodd

Hungrimind is the best learning platform I've seen for Flutter. The quality of the content and the structured approach make it clear that they truly care about both the learning experience and tangible results. I highly recommend it to anyone looking to level up their Flutter skills.

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Mike Diarmid

Mike Diarmid, CTO @ Invertase

Start learning today

Hungrimind

Join 400+ other developers

Get access to the S.O.L.I.D. Course and all of our other products including Dart Course, Flutter Course, Flutter Kit, Kubernetes Kit.

S.O.L.I.D. Course includes
Interactive lessons with code exercises
Code, test, and build in your browser
Quiz questions & progress tracking
Custom Certificate of Completion
Always up-to-date
Learn S.O.L.I.D. development
Membership includes
Complete access to all courses
Production Kits: Flutter & Kubernetes
Private Discord community access
Commercial licenses

This course genuinely was able to unblock key Flutter concepts that allowed me to build the app ideas I had with solid state management and architecture.

I'd recommend this course to anyone that wants to build complex Flutter apps with confidence.

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Nick Best

Student

Robert's mentorship has been invaluable to my growth as a developer. His expertise, dedication, and unwavering support have not only helped me overcome my fears but have also equipped me with the skills and confidence to tackle real-world projects with ease. I wholeheartedly recommend Robert to anyone seeking to elevate their skills and embark on a fulfilling developer journey.

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David Taylor

Software Engineer

Straight-to-the-point information holds immense value in today's world. Hungrimind's interactive course offers value at supersonic speed.

Einstein's philosophy resonates here: " Everything should be made as simple as possible, but not simpler ."

This course embodies three words: Creative, Fast, and Valuable.

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FlutterMapp

Flutter Educator on Youtube (200k+ Subscribers)

Course FAQ

Frequently Asked Questions

Who are we?

We are Robert and Tadas, and this platform is designed, written, and engineered by us from first sketch to production. We combined all our years in product, design, education, and engineering to create the highest quality learning experience possible.

75k+
YouTube subscribers
teaching Flutter
Millions
of developers reached
through our content
8+
Years building
production apps
Robert Brunhage Flutter & Dart GDE Volvo Trucks Mobile Developer Worked on remote updating software for trucks around the world Plejd Mobile Developer/Designer Led full redesign of the #1 most used home automation app in the EU Peggy Mobile Lead Led a team of 4 engineers for a high-growth startup YouTube Content Creator (46k+ subscribers) Taught millions of developers worldwide about Flutter and Dart Hungrimind Co-founder Leading the backend infrastructure and platform development
Tadas Petra Flutter & Dart GDE International Trucks Embedded Software Engineer Worked on truck software controlling thousands of trucks in North America Agora Developer Relations Led Developer Education for the biggest real-time communication platform YouTube Content Creator (30k+ subscribers) Teaching Flutter to millions of developers all over the globe Zero to Mastery Instructor Created a successful video Flutter course for thousands of students worldwide Hungrimind Co-founder Leading the education, content, and product vision