No diff tracking, but you can put notes in as you like, it's just text. You could use git as others suggested too. It's just text, git is good for changes in text files.
Took an hour or so to kind of get the framework in to place. We do family meals regularly (eat with your kids, it’s a good thing) and I record the ones they like, add notes as we change them. It’s sort of a secret project, I plan on giving it to my kids as a wedding gift or something. Only about 30 in it so far but I add one or two a month, I try to capture some pictures to go with it.
>Hey grandpa, can you show me the family brisket recipe?
>Sure grandson. But first, let me tell you what git is.
I think my current recipes app stores entries in the Recipe JSON Schema format[1]. This format is also useful since many websites will offer recipes in that schema. If I could make a conversion layer that transformed between a markdown version and the JSON recipe schema, that would probably be all I need.
For example, the schema.org schema puts quantities, units, and ingredients in a single field. Fail, IMO.
Other issues include things like not being able to group ingredients or procedures.
I don't have my notes on what I thought of each of the ones I've reviewed handy, but here are some I've looked at:
- http://www.formatdata.com/recipeml/
- https://recipemd.org/index.html
EDIT - for clarity, added examples of standards
Why? Recipes are for humans to read, and we're good at accomodating a wide variety of formats as long as they are reasonably sane.