Messing with DNS is so fun. I did a lightning talk on storing secrets in DNS [1] for my vpn tokens and also have a URL shortener that uses DNS as its storage mechanism [2]

[1]: https://youtu.be/CpWM_eVfRBM?si=uj3qVLcW_56FdQ8Y

[2]: https://ols.wtf/url-shortener.html