I'm exactly in this position myself. I'm 80%-90% done with a product but there's the last things that needs to be finished before I can launch, like configurati

I'm exactly in this position myself. I'm 80%-90% done with a product but there's the last things that needs to be finished before I can launch, like configuration, setup procedures, small details etc. I find it extremely hard to finish it. In my case I think it's simply because all the juicy problems have already been solved. It's darn boring coding when you need exactly what needs to be done, but you still need to do it. A couple of tricks that worked pretty well for me. Change enviroment, if you work somewhere "fun" like a café or other public place that might give a much needed boost to finish it. Listen to interesting stuff while working, like podcasts and audio books. Visualize your product being done and all the positive things that will lead too in order to get some motiviation