were could i get sorce codes for Linux OS of people that change or emulate programs for other Unix based OS's. for example i am looking for a way to emulate mac os programs to linux. were could i go for source codes or already emulated porgrams that i could download. i am very courios about finding out how much compatibility is shared throught unix based operating systems and also wondering ways of installing and runing differnt unix systems on my new computer. i made this computer my self and i am now starting to master linux, witch it runs smothly. if you have any sudgestions on good additions to my new computer that would aplify my unix experience and work abbility, plus compatibility please share with me. i am looking foward to a way that i could get the best out of my new workstation and hopefully can get mac os x installed on my workstation so that i could have mac and linux together, it may sound farfetched but hopefully it can be done. i am wondering if you know anything about these subjects that might help me if so please respong, thank you.