M4:
- Add 01-read-the-hex (hex-reading) and 02-find-the-entry (elf-anatomy)
gradeable challenges over the gate binary, completing the five-module
pedagogy
- Swap in-memory progress for a SQLite ProgressStore behind the existing
Protocol; routes untouched, migration-free, thread-safe
M5:
- Self-host Docker: prod (nginx + uvicorn) and dev (nginx + Vite HMR) compose,
justfile, Dockerfiles, and nginx configs; zero-config clone-and-run
- learn/ teaching docs (00-04) and public README
- One-shot install.sh and uninstall.sh
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