If you build those simple 1-file-testservers with node, simply write them in coffee and then start them like "coffee myserver.coffee". If it's more elaborated,

If you build those simple 1-file-testservers with node, simply write them in coffee and then start them like "coffee myserver.coffee". If it's more elaborated, you might want to set up some kind of build process and then use the generated js files. You could use a simple Makefile and compile your coffee files with coffee -c -b.