Lessons
Interactive scenes you can walk around. The scene is the lesson; the text is the appendix.
- intermediate18 min
GPU basics and how inference actually runs
SMs, the memory hierarchy, why matmul is the whole game, and how a transformer forward pass maps to silicon.
gpumlsystems - intermediate22 min
How Postgres data lives on disk
The actual bytes — files, 8KB pages, tuples, indexes, WAL, MVCC.
databasessystemspostgres - intermediate20 min
How TCP actually works
The three-way handshake, sliding windows, congestion control, and the four-way teardown — with real sequence numbers.
networkingsystemstcp