I'm no longer competing at ZeroDays, but I'm helping the Mark's run it and organise challenges, as well as expanding the challenges we have for ZD. We had 4 Lockpicking Challs this year, which I put together with Martin. We had a lock to pick, handcuffs to open, a biometric lock to bypass and finally, a Cryptex to unlock! We're also working with @Brains933, who had a rad RF Village at BSides Dublin to start making some hardware challenges, so we'll be able to further extend the range of challs we have available and to who the CTF might be appealing to.
The highlight though was by far and away when two people I thought Lockpicking to at the old ITB Cyber Summer Camps in 2018 and 2019 told me that they were now in college, I don't recall where, but it was absolutely incredible to see a little game I play, have such a large influence on people that it changed the course of their lives