POLYGLOT: Code in the Terminal

Forge Development Studio

About this app

The terminal that teaches you to code — and gets you ready for exam day.

POLYGLOT drops you into a glowing retro CRT terminal with 12 tracks waiting: Python, NumPy, pandas, Statistics, Data Visualization, Machine Learning basics, JavaScript, SQL, Regex, Bash, Git, and HTML.

This is not a video course. You TYPE. Every lesson: learn the idea, then prove it with real code — and your code actually runs.

⚡ REAL execution — a genuine Python + NumPy interpreter, live JavaScript, a working SQL database with JOINs, a pandas DataFrame engine, real regex testing, a simulated filesystem and Git repo

📅 STUDYING FOR A CLASS? Register your real exam dates. POLYGLOT builds countdowns, 10-question simulations scoped to exactly what each exam covers, grades them A–F, computes a live READINESS SCORE, and aims practice at your weak spots automatically

⚡ It explains WHY you're wrong — every mistake gets a character-level diagnosis ("you typed [ where ( belongs"), a plain-English analogy, and a coach mode when you're stuck

⚡ Infinite drills — procedurally generated reps including trace-the-output questions, the classic exam format

⚡ The Compass — one tap always points at your best next move: due reviews, today's challenge, or the exam that needs you most

⚡ Restore the Mainframe — every track you master brings a subsystem of a derelict machine back ONLINE

⚡ Science-backed memory — spaced repetition, surprise flashbacks, and predict-first prompts, timed to when you'd start forgetting

⚡ Ranks, streaks & streak freezes — climb OPERATOR → ANALYST → CODEBREAKER → ARCHITECT, unlock phosphor themes, collect ASCII companions

⚡ Operator License — a shareable certificate card that levels up as you do

⚡ Backup & restore — your progress exports as plain text, restores on any device

⚡ Works offline — the whole curriculum fits in your pocket. No accounts. No ads. No tracking.

$ start

What’s new

v1.6.1: curriculum corrections across all 15 tracks. Fixed a wrong standard deviation in the pandas describe() lesson, validation leakage in the sklearn cross-validation lesson, a git reset described as erasing work it actually keeps, a backwards NLTK stopword claim, and invalid JavaScript in a JavaScript lesson. Around 30 more lessons now state the beginner rule and its boundary instead of an absolute. The app is also explicit now about how each lesson is graded.