Johnston, Iowa · Live classes in US Central Time
§The catalog
Python, TypeScript, Rust, Algorithms, System design, Databases, Testing and Debugging & tools. Every course is taught live to 8 people or fewer and costs $8.64 to $148.64. None of them can be bought without talking to us first.
4 of 32 courses
Boxes, arrows and the trade-offs between them, from one server to many.
Clients, servers, databases, caches and queues, drawn as boxes and then argued about. For developers who ship features and have never been asked to draw the system they run on.
Requests · Caches · Queues · Diagrams
Load balancing, replication, partitioning and the cache invalidation everyone warns you about. You redesign one service three times as its traffic grows and defend every trade-off out loud.
Load balancing · Replication · Partitioning · Caching
A problem statement, the alternatives you rejected, and the diagram that ends a meeting early. You write a real design document, hear it reviewed by the group and revise it twice.
Trade-offs · Alternatives · Diagrams · Review
Consensus, clocks, idempotency, retries and partial failure, shown on a lab cluster that breaks on purpose. For engineers who own services that depend on other services.
Consensus · Clocks · Idempotency · Partitions
White to play
Pick a course, or just write to us. Either way, you talk to the person who would teach you before anything is paid.