So I decided to dive in and fix it. I just fixed the bugs and got it to run again. I believe the majority of recipes will show just fine.
Here's a quote from Uristqwerty on the Craftguide's forum page regarding source code editing and redistribution permissions:
If you want to use some (or all) of it in your own project, you are free to do so, though it would be nice if you mentioned CraftGuide in a text file or somewhere else where someone can find it.
Download
Source
Thanks to Arminias, this is also compatible with Fabric!
(I've made a new post since jorgebonafe doesn't seem to be very active anymore, but you can view the old one here.)