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Get job-ready with C# and .NET, or build and monetize your own React Native app.

New to coding? Begin with Start Here: JavaScript fundamentals and Claude Code.

Start Here

Learn JavaScript fundamentals, then learn to build with Claude Code.

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JavaScript for Beginners

3.5 hours
Free
  • JavaScript Essentials: A 3.5-Hour Course for Complete Beginners
  • JavaScript Interview Essentials: A 61-Page Prep Guide for Beginners
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JavaScript Pro

9.5 hours
Free
  • JavaScript Mastery in 9.5 Hours: The Intermediate Developer's Course
  • Mastering JavaScript: A 600-Page Guide for Intermediate Developers
  • JavaScript Interview Success: A 120-Page Study Guide for Skilled Intermediates
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Claude Code Essentials

Expected May 10, 2030
Premium
  • How Claude Code Works: The Agentic Loop, Tools, Models, and Sessions
  • Prompting, Plan Mode, CLAUDE.md, Settings, and Permissions Done Safely
  • Extend and Automate With Skills, MCP, Subagents, Hooks, and GitHub Actions

C# and .NET Backend Development

Learn C# and modern .NET, build production REST APIs, test them properly, master SQL Server, and run it all on Azure.

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C# and Modern .NET Fundamentals

Expected November 12, 2027
Premium
  • Learn C# 14 on .NET 10 — the Current Long-Term Support Release
  • Object-Oriented Design: Classes, Inheritance, Polymorphism, and Interfaces
  • Records, Pattern Matching, Generics, Delegates, Events, and LINQ in Depth
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Build Production REST APIs with .NET

Expected October 8, 2027
Premium
  • Build One Real Ecommerce API End to End: FuelUp, With ASP.NET Core on .NET 10
  • PostgreSQL and EF Core, Identity and JWT Auth, Validation and ProblemDetails
  • Production Practices, Then Containerize With Docker and Deploy to Azure
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Testing C# with xUnit

Expected March 24, 2028
Premium
  • xUnit End to End: Facts, Theories, Data-Driven Tests, and Fixtures
  • Decide What Actually Deserves a Test — and What Does Not
  • Test Doubles and Mocking With NSubstitute, Plus the Antipatterns to Avoid
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SQL Server for .NET Developers

Expected December 1, 2028
Premium
  • Run SQL Server 2025 in Docker and Build the FuelUp Store Database
  • T-SQL Deep Dive: Joins, CTEs, Window Functions, Procedures, and Transactions
  • Indexing and Execution Plans, Then ADO.NET, Dapper, and EF Core From C#
Coming Soon
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Microsoft Azure for .NET Developers

Expected August 11, 2028
Premium
  • Deploy ASP.NET Core to App Service and Containers With the Azure CLI
  • Azure SQL, Blob Storage, Key Vault, Managed Identities, and Entra ID
  • Functions, Service Bus, Application Insights, Bicep, and CI/CD

Technical Interview Preparation

Master data structures and algorithms, drill 141 real problems, and design systems at scale.

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Data Structures & Algorithms

Expected September 7, 2029
Premium
  • Every Topic Taught Twice: Concept Video, Then Build It From Scratch
  • Every Data Structure Built From Scratch in Modern C#
  • Big O, Arrays, Strings, Linked Lists, Stacks, Queues, and Hash Tables
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Coding Interview Problems

Expected November 12, 2027
Premium
  • 141 Real Interview Problems Across 12 Core Topics, Easy to Hard
  • Every Problem Posed First So You Can Attempt It Before Seeing Any Code
  • Step-by-Step C# Solutions with Time and Space Complexity
Coming Soon
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System Design Fundamentals: Designing Reliable, Scalable Applications

Expected January 25, 2030
Premium
  • Turn Requirements and Capacity Estimates Into a Defensible Architecture
  • Scaling, Storage, Caching, Queues, Consistency, and Reliability Tradeoffs
  • Twelve Case Studies and a Capstone Design You Present and Defend

Build & Ship

Go from idea to App Store — build a real app, ship it, and start earning.

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Zero to Launch: Build a Full-Stack Mobile App in 30 Days with Claude Code

Coming Soon
Premium
  • 20-Hour Video Course
  • Minimum Viable Product Workbook
  • AI Development Workflow Guide
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Meditation Mobile App - React Native

2 hours
Free
  • 2-Hour Video Course: Build a Mobile App with React Native, Expo, and NativeWind
  • Full Access to Project Source Code and GitHub Repository
Coming Soon
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Monetize Your App: Paywalls, Subscriptions, and Recurring Revenue

Expected July 5, 2030
Premium
  • Build a Complete Subscription Flow with RevenueCat and Expo
  • Set Up Paywalls, Free Trials, and A/B Testing — No Code Changes Required
  • Configure Subscriptions on Both the App Store and Google Play
Coming Soon
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Find Product-Market Fit with App Analytics

Expected August 2, 2030
Premium
  • Measure Product-Market Fit With Retention and Usage Analytics
  • Instrument Your App With Analytics and Sentry Error Reporting
  • Track User Behavior, Catch Errors Early, and Monitor Performance in Production

Plan Your App Business

Validate your idea, write the business plan, and map the road from first app to first revenue.

Coming Soon
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Idea Validation

Expected August 9, 2030
Free
  • Validate Your App Idea Before You Write a Line of Code
  • Test Real Market Demand and Identify Your Target Audience
  • Run User Research and Build MVPs That Answer the Right Question
Coming Soon
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App Business Plan

Expected August 16, 2030
Free
  • Turn an App Idea Into a Viable Business With a Clear Path to Profit
  • Define Your Business Model and Set Pricing That Works
  • Plan Your Marketing Approach and Forecast Revenue
Coming Soon
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Indie Developer Roadmap

Expected August 23, 2030
Free
  • 2-Hour Video Course: Complete Indie Developer Roadmap with 10 Essential Lessons
  • Indie Developer Roadmap: A 90-Page Comprehensive Guide to Launching Your App Business

Grow & Market Your App

Get your app in front of real users — organically, through creators, and with paid ads.

Coming Soon
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Organic Content Creation & Social Media Growth

Expected September 13, 2030
Premium
  • Grow Your App's Audience Without Spending on Ads
  • Content Strategy, Brand Voice, and a Posting Schedule You Can Keep
  • Hashtag Optimization and Real Community Engagement
Coming Soon
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Influencer Marketing for Apps

Expected September 27, 2030
Premium
  • Find the Right Influencers for Your App and Your Budget
  • Negotiate Partnerships and Structure Collaboration Campaigns
  • Work With Nano, Micro, and Macro Influencers Across Platforms
Coming Soon
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Paid Ads for Mobile Apps

Expected October 18, 2030
Premium
  • Run Profitable Campaigns on Google, Facebook, Apple Search, and TikTok Ads
  • Campaign Setup, Audience Targeting, and Ad Creative That Converts
  • Budget Optimization and A/B Testing