Connecting to the webpage gives a site of some never ending/scrolling ghost (nice).
Inspecting source code doesn't show much. Opening developer tools and inspecting values, under Local Storage, we find the flag in plaintext.
![](https://bigpick.github.io/TodayILearned/img/nahamConCTF2020/ghost_flag.png)
[Full writeup](https://bigpick.github.io/TodayILearned/articles/2020-06/nahamConCTF-writeups#localghost)