I’m learning to code
BuildBuild with Python
Make code draw, move and respond from the first lesson, and finish by building a playable game.
6 free modules · no signup · no setup
Start Python freeLearn by seeing
Don’t just read code. Watch it run.
Executable lessons and visual labs, from your first Python program to production systems you break on purpose.
Where do you want to start?
I can code — teach me CS
UnderstandAlgorithm Design and Analysis
Watch an algorithm change state step by step, find the invariant that makes it correct, and prove how fast it is.
Free · 25 modules · lessons and labs
Explore algorithmsI’m an experienced engineer
EngineerDurable Execution with Temporal
Kill the Worker, inspect Event History, and prove what survives — and what runs twice.
Python · Docker · free during public beta
Start TemporalThe best place to begin
Your first six Python modules are ready
No account, installation, or local environment. Open the course and make code produce something visible from the first lesson.
Python6 free modules
Learn Python through visible results
Build with Python
Draw, transform data, respond to input, organize programs with functions and collections, and finish by building a playable game.
The SciMigo learning loop
See the evidence, not just the explanation.
Each course uses as much of the loop as its subject demands—from watching a Python value change to recovering a failed distributed system.
- 01
Write
Begin with code you can read, change, and make your own.
- 02
Run
Execute it in the browser or against the real runtime.
- 03
See
Watch values, memory, state, and time become visible.
- 04
Break
Change an input or inject failure and observe the consequence.
- 05
Understand
Explain what happened from evidence, not guesswork.
Choose your next foundation
Learn to reason about programs
Move from using a language to understanding computation, abstraction, state, the machine-level choices behind your code, and algorithms you can prove.
C++Free course
See what the language is doing
Build with C++
Learn modern C++ by drawing and building a game, and see values, references, vectors and structs in memory as your code runs.
AlgorithmsFree course
Prove why it works
Algorithm Design and Analysis
A visual, proof-first companion to CMU 15-451/651 topics: watch algorithms change state, prove them correct and fast, and solve problems that do not name their technique.
Graph TheoryFree course
Find the certificate, write the proof
Introduction to Graph Theory
A proof-based first course in graph theory: your code searches small graphs and checks certificates, and every lab ends in a proof you write.
Advanced engineering
Build systems that survive reality
Continue with production-shaped courses in durable execution, durable agents, and stateful stream processing.
TemporalFeatured systems course
Durable Execution with Temporal
Build an agent runtime that survives Worker crashes, long pauses, new instructions, and deployments—then verify every claim against Event History.
- 01Build it
- 02Kill the Worker
- 03Inspect Event History
- 04Prove what survives
Apache FlinkFlink · flagship course
Stateful Stream Processing with Apache Flink
Build GatewayMeter and defend its invoice through late data, stalled partitions, TaskManager deaths, backpressure, upgrades, and hot tenants.
RestateRestate · flagship labDurable Agents with Restate
Crash a running agent, count the model calls replay costs, trigger a journal mismatch, and fix both with one durable step.
Course interest
Help shape what we build next
Tell us what you want to learn. This records your interest; it does not enroll you or promise a launch email.
Frequently asked questions
Can I start learning without an account?
Yes. Build with Python's six free modules run in your browser with no account or local setup.
Which course should a beginner take first?
Start with Build with Python if you are new to programming. Choose Algorithm Design and Analysis once you know basic data structures and want to prove why algorithms work.
What is available for experienced engineers?
The advanced section links to current courses on Temporal durable execution, Restate durable agents, and Apache Flink stateful stream processing. Each course page shows the lessons and labs currently available.
Can I learn C++ here too?
Yes. Build with C++ has six free modules that compile real C++17 in your browser, from drawing on a canvas to a playable Tic-Tac-Toe game. A later track on lifetime, ownership, the STL and algorithms is still being written.