SKINT is a portable interpreter for the R7RS Scheme programming language. It can be built from five C source files (~11K lines of code) with a single command. There are no distributives or packages; just compile the source files with your favorite C compiler, link them with the standard C runtime libraries, and you're done. Standard libraries are built in; ports of more than 100 SRFIs are available as an optional external directory of .sld library files.