Show HN: A collection of CTF type puzzles

Hello HN, I am pleased to introduce my side project, cStDf. This is a set of puzzles, similar to Capture The Flag (CTF) challenges. However, note that these puzzles are not necessarily related to cybersecurity.

The essence of these puzzles lies in the discovery of hidden elements within them, much like solving riddles. They encompass a broad range of computer-related technologies. The concept behind these puzzles is to explore different methods of concealing text, an idea inspired by various sources and personal thoughts.

I encourage everyone to try solving these puzzles and share your thoughts. Some puzzles may require the use of specific tools, all of which are freely available online.