Ok Chin , here goes.
First you debone the breasts which is not difficult , then the legs which is a bit trickier but with patience you can do it,
Reserve the carcass , wing tips and neck bones for soup or duck stock
On a very hot skillet place the breasts skin side down and when most of the fat is rendered out , flip it over to seal the meat side ,
Do the same for the boneless legs Let it sit for about 10 minutes and then cut it all up to curry sized pieces.
Use the same duck fat instead of oil to make your curried duck as you will normally do . Save the rest for fried rice and chow mein