Also, TSTTCPW (the simplest thing that could possibly work). Pry a little piece of it loose. Don't think too much about which piece. Build the simplest possible version of that little piece. "Simplest" can be a tremendous challenge in itself, because scope creep and gold-plating are so easy. Part of the work will be decoupling your little piece from the rest of it. But make something that works!
Also, TSTTCPW (the simplest thing that could possibly work). Pry a little piece of it loose. Don't think too much about which piece. Build the simplest possible version of that little piece. "Simplest" can be a tremendous challenge in itself, because scope creep and gold-plating are so easy. Part of the work will be decoupling your little piece from the rest of it. But make something that works!