Honestly, not a bad idea. I'd just have to deal with figuring out a good, standardized text-based format. I already use a git-backed Obsidian markdown knowledge base for most of my notes, so it would make a lot of sense to incorporate recipes too.
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.