Archiving the source code as well? And the compilers used? And the source code for the compilers? The hardware itself? Nemo for example was probably rendered o

Archiving the source code as well? And the compilers used? And the source code for the compilers? The hardware itself? Nemo for example was probably rendered on Silicon Grapics or other NLA systems. If all your software was built for some old MIPS architecture it might be a challenge to get that running again in 2017.