Pick an image (JPG, PNG, WEBP or GIF) for each day. Days you leave empty show the built-in placeholder meme. Captions are optional. They get drawn over the image in classic meme text, so leave them blank if your meme already has text.
π΅ Each day also has a carol that plays when its door opens. Pick a different one from the list if you like.
The memes get encrypted with this password, so nobody can see them without it, not even by digging into the page's code. There's no "forgot password", so write it down.
This saves a file called index.html. That one file is the whole website, memes included, ready to upload.