Grocy has a recipe feature, it can even recommend you recipes based on what you have in your fridge: https://grocy.info/#recipe-details It can run on your server or you can use it a standalone desktop app. It's a full systems to manage your fridge, e.g. it notifies you if something will expire soon.
But I think four use case any wiki or note manager software would be enough. You can hyperlink there ingredients for example.
These are self hosted, but you can use your desktop as a server, and a lot of them works completely offline:
- https://awesome-selfhosted.net/tags/note-taking--editors.html
- https://awesome-selfhosted.net/tags/wikis.html
No recipe inventory, you should write your own.
It wasn't clear from your post if you are looking for actual reciepes or a software managing them.
If the former, than I see why your search queries yield no results. "Open source" usually associated with software, open written works usally ha ve some kind creative commons license. Search for that instead
I know Luke set up https://based.cooking/ a few years ago—is that the sort of thing you’re looking for?
Can you please compile a list and publish it someplace that's better indexed than Lemmy?
Google search for "open source recipes". Does Lemmy come up in the results?
If not, compile this list on some website that will get indexed by search engines, so it will help the next person who is searching for this information.
Many sites are well-indexed by search engines. Personally, I recommend asking this question on the cooking stack exchange. You can answer your own question and then link from there to this thread, and it will help search engines index this thread.
There is cooklang which I use in Obsidian. Maybe there are shared repos out there. They have a discord server you could check on
Honorable mention: https://www.completefoods.co/
Tandoor is great for self hosting your recipes. It's not a for repo of recipes though, but thought I should mentioned what I view as the best hosting for them. They're stored in markdown internally
The problem with recipes is that people tend to add their flavor to it. Meaning, importing bulk recipes imports a lot of trash.
I started that way and quickly went back to: add one recipe after the other. Sometimes you may add a couple but only a couple which will be altered over the weeks to meet your standard.