I have a Mac Os app that's currently 32-bit and is now getting warnings on Mac OS High Sierra, due to the new policy that Apple wants to inform users on an app not being 64-bit.
I'd like you to update it to 64-bit to avoid that. No further changes are needed.
The app can be downloaded from [login to view URL] so you can check it.
I have the source code in a repository for you to work on.