First devlog!

I’ve been wanting to build something that feels like actual secret agent stuff, and steganography caught my eye, hiding messages inside images that look completely normal. Nobody would ever know.
Getting started was harder than I expected. I didn’t know how pixel data actually worked at first, I just knew images were made of pixels. Turns out every pixel has three numbers (R, G, B) and ASCII characters are also just numbers, so you can literally swap one for the other. That clicked for me and I got excited.
Built the two core helper functions today: message_to_numbers which converts text to ASCII values, and numbers_to_message which does the reverse. The stop signal (0) idea came from wondering “how does the decoder know when to stop?” you need a flag at the end, like a period at the end of a sentence.