SSRF: The call is coming from inside your network

Picked one by one from a mixed channel. Transcript check: both title readers certain; 4 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include tutorials, build-alongs, multi-part 'from scratch' series episodes and concept explainers (e.g. OAuth, real-time techniques, state machines) that are roughly 8 minutes or longer and teach a concrete technique with code; exclude very short news/release blurbs, brief library demos without real instruction, and hook-titled opinion or essay pieces.