◆ 0 XP
ONE PLATFORM · ZERO TAB SWITCHING

Learn it. Build it.
Prove it.

Adaptive courses, real playgrounds, project work, cloud labs, certification prep, and an AI coach—all in one focused workspace.

✓ Guided explanations✓ Hands-on labs✓ Portfolio projects
TODAY'S MISSION12 min

Find high-value orders

Return the customer and revenue for orders worth at least $500. Sort the largest revenue first.

0% path complete
ACTIVE PATHSQL AnalystModule 1 of 5
WEEKLY FOCUS2h 18mGoal: 4 hours
SKILL SIGNALBuildingBased on live work
NEXT MILESTONESQL Capstone5 lessons away
LEARNER ↔ PLATFORM LOOP

How does today’s work feel?

Your answer changes difficulty, hint depth, review timing, and today’s recommended mission.

YOUR LEARNING OS

Pick up exactly where you left off.

SQL
In progress

Data & SQL

SQL · data modeling · BI reports

Beginner → Expert · 84 lessons
Py
Start path

Python Engineering

Python · APIs · automation · data

Beginner → Advanced · 96 lessons
JS
Start path

JavaScript & TypeScript

JavaScript · TypeScript · browser · Node.js

First line → Professional · 92 lessons
Rx
Career path

React & Next.js

React · Next.js · testing · performance

Web foundations → Pro · 88 lessons
ADAPTIVE APPRENTICESHIP

The engine decides what you should practice next.

MASTERY GRAPH

SQL analyst skills

49%
SQL filteringStrong78%
AggregationDeveloping61%
JoinsReview due42%
Data modelingNew28%
ReportingNew35%
MISTAKE NOTEBOOK · DUE TODAY

GROUP BY vs. HAVING

You filtered an aggregate with WHERE twice. Let’s repair the misconception with a two-minute retrieval exercise.

WHERE COUNT(*) > 1→HAVING COUNT(*) > 1
PERSONALIZED WEEK

4 sessions · 3h 25m

TodaySQL review + joins35 min
TuePython foundations45 min
ThuDashboard simulation60 min
SatRevenue capstone65 min
PROFESSIONAL SIMULATIONS

Practice judgment, not just syntax.

01
Incident room

Fix a broken production deployment

DevOps · 45 min
02
Analytics review

Investigate an unreliable executive dashboard

SQL + BI · 60 min
03
Cost challenge

Reduce an AWS workload’s monthly bill

AWS · 50 min
04
AI reliability lab

Evaluate and repair a failing RAG system

AI engineering · 75 min
05
Code review

Review a pull request before it ships

Software engineering · 35 min
06
Stakeholder desk

Turn an ambiguous request into a trusted report

Data · 40 min