Software Engineering Practices

reading · we frame, you read MIT or the canonical taught · we author, no canonical fits ↺ spirals back to earlier lessons

Course locked

Complete Software Construction (MIT 6.1020 / Stanford CS107 inspired) first.

This course unlocks once you've finished its prerequisite. Open prerequisite →

reading · 35 min + ~141 min canonical

How Software Gets Built: Methodologies, Version Control, and CI/CD

The previous course made your code correct. This course is about making the process that produces the code an engineering discipline — because at any real scale, the biggest deter…

primary Boot.dev Git courses

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reading · 30 min + ~141 min canonical L1

The Testing Pyramid, TDD, and BDD

Course 11.1 taught you how to test well — partition the input space, hit the boundaries, choose the right doubles. This lesson is about the strategy and workflow around testing: h…

primary Boot.dev Git courses

after L1 locked

reading · 35 min + ~141 min canonical L1

Design Patterns: Creational, Structural, and Behavioral

Design patterns get taught as a catalog to memorize — twenty-three named recipes with UML diagrams — and taught that way, they're both boring and misleading. The truth is more use…

primary Boot.dev Git courses

after L2 locked

reading · 35 min + ~141 min canonical L1

SOLID and Clean Architecture: The Dependency Rule

SOLID is the most-cited and most-misunderstood acronym in software design. Everyone can name the five principles; almost no one states them correctly (the Single Responsibility Pr…

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after L3 locked

reading · 35 min + ~141 min canonical L1

Domain-Driven Design, Technical Debt, and Documentation

This lesson closes Software Engineering Practices with the three things that determine whether a codebase stays comprehensible as it grows: how you model the business (Domain-Driv…

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after L4 locked

exercise reading · 15 min L1

Exercises: Easy (Warm-up)

- [ ] Implement Strategy pattern in Ruby — Payment processing with different strategies (credit card, PayPal, crypto) - [ ] Implement Observer pattern in Ruby — Use ActiveSupport:…

after L5 locked

exercise reading · 30 min L1

Exercises: Medium (Core)

- [ ] Implement Factory pattern in Ruby — Abstract factory for creating database adapters (Postgres, MySQL, SQLite) - [ ] Implement Builder pattern in Ruby — Fluent interface for …

after L6 locked

exercise reading · 45 min L1

Exercises: Hard (Stretch)

- [ ] Implement Clean Architecture in Ruby — Entities, Use Cases, Interface Adapters, Frameworks; dependency rule enforced - [ ] DDD exercise — Model an e-commerce domain: define …

after L7 locked

exercise reading · 60 min L1

Mini-Project

- [ ] Build a plugin system in Ruby — Core app with plugin interface, plugins loaded dynamically from gems, hooks for before/after processing, configuration DSL; demonstrate with …

after L8 locked

L10

project reading · 480 min L1

Project: Design Pattern Catalog in Ruby

Implement 8 design patterns (Strategy, Observer, Decorator, Factory, Builder, Command, State, Template Method) as working Ruby examples. Each pattern gets: a 50-line implementatio…

after L9 locked

L11

assessment reading · 56 min L1

Self-Assessment: Software Engineering Practices

- [ ] Explain the SOLID principles. Give a Ruby example for each. - [ ] What is the Strategy pattern? How do Ruby blocks/procs implement it naturally? - [ ] What is the Observer p…

after L10 locked

11 lessons. Read in order; spiral back when you need to. By the end you'll have used the core ideas twice — once on the abstract, once on something you'll meet at work next week.