You can find LDB’s primary repo and it’s documentation on GitHub If you have a patch, please fork on GitHub and commit there.
Note to addon authors
If you have a .pkgmeta
Do not use an embed entry for LDB if you allow no-lib packages, your no-lib versions will not include LDB in them. Instead you should hard-embed LDB in your addon and add a “tools used” entry for “libdatabroker-1-1”. Any files packaged after that will include the relationship. If you don’t want to repack, you can edit the existing files on wowace to add the relationship.
Vote for this ticket if you’d like Ace to fix the .pkgmeta issue so you don’t have to hard-embed.
If you don’t have a .pkgmeta
In this case, you can edit the “default relationships” on wowace’s project page, this will have the same effect as editing a .pkgmeta. This means you’ll have to update the files as well, or make new tags.
I also wrote a script to update relationships on my own addons. Feel free to use it (and tweak it).