6 lessons
Programming foundations
Values, contracts, state, and the habits that transfer between languages.
6 engineering modules0/6
The engineering academy
Understand it.
Then make it work.
Learn to read a codebase, reason about its boundaries, build a feature, and prove what changed. Start with a mental model. Leave with a working experiment.
18 connected academies16 interactive labsLocal progress · no account
One idea. Several ways to know it.
01Explain & predictMake a claim you can test.
02Experiment & debugFollow the evidence.
03Build & recallTransfer it. Return later.
Learn → Try → Test → Build
Your direction
Paths share lessons, so each skill counts wherever you use it.
Next useful step
Restore your local progress
Before learning many keywords, learn to track what a name refers to and which changes are visible elsewhere. This prevents confusion in every later language and UI state lesson.
Open lesson →Review queue
— skills due
Recall after a gap builds stronger evidence than another page visit.
See evidence & reviews →Choose your next question
Learn the system, one idea at a time.
266 lessons across preserved foundations and deeper engineering sequences. Follow a path or enter where your curiosity takes you.
10 lessons
HTML & the web
Give documents meaning. Understand the browser as a platform.
Guided foundation + practice0/10
15 lessons
CSS & layout
See the cascade, space, flow, and layers respond to your choices.
Guided foundation + practice0/15
22 lessons
JavaScript engineering
References, closures, events, async work, and reliable state.
8 engineering modules0/22
26 lessons
TypeScript engineering
Learn what the compiler can prove—and where runtime checks begin.
12 engineering modules0/26
10 lessons
React mental models
UI is a function of state. Explore renders, ownership, effects, and identity.
10 engineering modules0/10
10 lessons
APIs, HTTP & JSON
Construct requests. Inspect authority, errors, retries, and response contracts.
Guided foundation + practice0/10
23 lessons
SQL & PostgreSQL concepts
Relationships, integrity, queries, transactions, and concurrency.
8 engineering modules0/23
6 lessons
Supabase & authorization
Database + authentication + policies + API. Follow authority to the row.
6 engineering modules0/6
16 lessons
Git & GitHub engineering
Understand the graph, review changes, recover safely, and release deliberately.
6 engineering modules0/16
8 lessons
Debug, test & secure
Investigate failures, test boundaries, protect authority, and verify AI work.
8 engineering modules0/8
8 lessons
Next.js, Node & delivery
Rendering strategies, runtime boundaries, workspaces, builds, and the edge.
8 engineering modules0/8
8 lessons
Game engineering
Loop, input, update, collision, render, audio, and durable saves.
8 engineering modules0/8
6 lessons
3D & asset pipelines
Scene, camera, materials, GLB, Blender automation, and frame budgets.
6 engineering modules0/6
16 lessons
C# engineering
From values and methods to LINQ, asynchronous tasks, and application boundaries.
16 engineering modules0/16
20 lessons
Python & automation
A preserved starter journey and applied file, API, and automation workshop.
Guided foundation + practice0/20
40 lessons
AI fluency & verification
Prompt Repair, AI Engine Lab, and practical judgment about generated work.
Guided foundation + practice0/40
16 lessons
VBA & office automation
The existing workbook automation journey, preserved in full.
Guided foundation + practice0/16
Touch the model.
Run code, move a camera, change a policy, or step through an event loop.
Open the laboratory →BuildMake the pieces meet.
Five substantial capstone briefs with synthetic data, failure cases, and review criteria.
Choose a capstone →Orient yourself“What is this thing?”
Understand what a technology does, where it fits, and what to learn next.
Explore the stack →Your existing learning tools are here.
Momentum Mode, Skill Boosters, Prompt Repair, AI Engine Lab, mixed practice, certificates, and all original projects remain available.