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CSS layouts that work
.card-grid {
display: grid;
grid-template-columns:
repeat(auto-fit, minmax(220px, 1fr));
}
4 days
Streak
3.2 hrs
This week
12
Lessons
30
guided courses
301
bite-size lessons
15+
real projects
100%
learn at your pace

Computer Science Essentials
Build the mental models behind software: data, logic, memory, algorithms, networks and the trade-offs engineers make.

Software Engineering Practices
Work in a team on real code: branches and pull requests, review that improves the code, tests that earn their keep and a pipeline that ships for you.

Vibe Coding: Ship with AI
Build working software by describing it — then learn to read, review and fix what the AI writes, so the project stays yours to change.

Web Development Foundations
Learn how the web works, then build and publish a responsive multi-section website with HTML and modern CSS.

Mobile Apps with React Native
Build a cross-platform habit tracker while learning native layouts, navigation, device storage and mobile UX.

Backend Development with Node.js
Design secure APIs, model application data and connect a real backend to the interfaces you build.

Cyber Security Foundations
How networks carry data, how Linux systems are run and locked down, and how to script the checks: the groundwork for every security role.

Data Science & Analytics
Answer questions with data: frame a decision, clean what arrives from the real world, describe a distribution honestly, and hand over a finding somebody can act on.

Human-Computer Interaction
Design interfaces for people who scan, guess, get interrupted and use a mid-range phone in bright sunlight — with usability testing that finds the problems before your users do.

Computer Networking
How computers talk to each other: addresses, names, packets, ports and protocols, then how to build, secure and troubleshoot a real home or office network.

Cloud Computing & DevOps
Understand what the cloud really is and who is responsible for what, then run software there properly: containers, infrastructure as code, pipelines, monitoring and rollback.

Artificial Intelligence & Machine Learning (AI/ML)
What these systems actually do, what they are good for and where they fail: the machine-learning workflow, neural networks and generative AI, and the ethics of deploying AI where people are affected.

Game Development: 2D, 3D, 4D, 5D and 4K–8K+
Build games from the loop up: 2D tile maps, 3D cameras and light, a fourth dimension of space and of time, branching timelines and n dimensions, then the arithmetic of 4K, 8K and beyond with dynamic resolution and upscaling.
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What should I learn first? I'm brand new 🌱
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