This, along with the software available at suckless.org, gives us but a glimpse of the elegance, leanness, minimalism and simplicity of the original UNIX. (Still, I am not sure what is the best way to have a UNIX experience today. One, more practical, probably would be to use a minimal install of Slackware; a more radical approach would be to play with Version 7 either on a PDP-11 emulator or using an existing port of the same to x86 available at http://emma.nfshost.com/v7x86/.)