Allow me to plug Ankivalenz[1], my library that turns (structured) Markdown files into Anki decks, using a syntax like this:

  # Solar System
  
  ## Planets
  
  ### Color
  
  - Earth ?:: Blue
  - Mars ?:: Red

The best thing about it (for me) is that the header structure (and any parent list items) are added to the cards, e.g.:

  Path: Solar System > Planets > Color
  Front: Earth
  Back: Blue

This hierarchy makes it much easier to formulate succinct cards, in my experience.

The syntax also means that I can easily add cards from my regular Markdown notes, so regular notes and Anki cards live together.

[1] https://github.com/vangberg/ankivalenz/