Welcome to the official repository for Canary's DiffSinger library! You will find all of the information you need.
Visit his official site here for even more information!
IN DEPTH GUIDE FOUND HERE!!
To begin, ensure you have a DiffSinger compatible version of OpenUTAU installed.
Download CANARY_DS_{version}_PACK.zip from the latest release on this page. Unzip the pack, and you'll see two folders; One containing a .zip with the voicebank, and one containing OpenUTAU plugins.
Drag the voice library .zip into OpenUTAU and click accept. Drag any .dll files from the OpenUTAU plugins into OpenUTAU and accept. You may then restart OpenUTAU and properly utilize Canary!