Part of: Zettelkasten features map
#template #zettel #markdown #tag
2025-04-26

Print metadata in card's header

Markdown documents must contain yaml frontmatter to be treated as zettels. The following metadata will be read from the frontmatter and shown in card's header.

Zettelkasten ID

Key: id

Currently, only 14 digits format %Y%m%d%H%M%S (datetime's format) is supported.

Last modification date

Keys: date or last_update

The following formats of date strings (datetime's format) are understood:

  • %Y-%m-%d %H:%M:%S
  • %Y%m%d%H%M%S
  • %Y-%m-%d

When last_update key is found in the frontmatter, then it is the value that will be always used as the last modification date for a zettel.

Alternatively, this plugin attempts to convert id key to a date in case both date and last_update keys are missing. As the last resort, the date of site build is used.

Last modification date from the file system or git repository will be used if it is more recent than any date determined so far (with the exception of last_update date which always wins).

Tags

Key: tags

List of tags according to the syntax of yaml array list

  • Render markdown document as a card
    1. Header with metadata 2. Body with content 3. Footer with references
  • Collect links by tag
    Every tag in the list of tags printed in card's header can be clicked to navigate to the tags page. You can find other zettels with the same tag this way.
  • Zettelkasten features map
    - Note types and maturity badges — type and maturity metadata support - Print metadata in card's header — card header metadata display

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def greet(name: str) -> str:
    """Return a greeting."""
    return f"Hello, {name}!"

print(greet("Zettelkasten"))