Setting up BugHouse on my computer I want to have a setup on my computer to play BugHouse with three engine. One engine would be my partner and the other two would be the opposing team. How can I setup such a scenario? I use Linux but I can also use Windows. 

I have seen the support for BugHouse and XBoard as a client, but I have not found a way to connect the two to play BugHouse with two open XBoards. 

I found such a program in the android playstore, but the engine in the app was very poor not much fun.
The only way I know of playing bughouse using XBoard/Winboard is to play via FICS, see e.g. https://github.com/ianfab/Fairy-Stockfish/wiki/Setting-up-Fairy-Stockfish-on-FICS#bughouse (it works very similar for other bughouse engines), i.e., it does not work offline. You would just use four FICS guest accounts whereof three are your engine instances, and create two bughouse teams from them. I tried this several times already and for me it works fine, although of course it is not very convenient to set up, but once set up it works smoothly.