Short snippets of things I learn along the way.
embed.FS in Go will fail at compile time if the directory you're embedding is completely empty. You need at least one file (even a .gitkeep) for the embed directive to work. This caught me off guard when setting up new content directories.
You can add custom inline parsers to Goldmark by implementing the parser.InlineParser interface with a Trigger() byte and a Parse() function. I used this to add [[wiki-link]] syntax to my blog's knowledge base. The key is setting the priority higher than the default link parser so [[ gets matched before [.