GitLab Writeup: https://gitlab.com/WhatTheFuzz-CTFs/picoCTF
00:00 - Intro
00:17 - Description
00:54 - Interacting with the program
02:05 - Source code
05:05 - What are format string vulnerabilities?
07:46 - How can we exploit?
09:32 - Found the flag
11:00 - Outro
Sorry for the rough cut around 7:32.