Licencing issues and portability
Unfortunately, the Trove categories aren't quite as flexible as we want.
Please note that parts of this project have MIT and BSD-ish licences.
sbcl works on GNU/Linux, FreeBSD, and OpenBSD on x86 CPUs, GNU/Linux and Tru64 on Alpha CPUs, GNU/Linux and Solaris on SPARC CPUs as well as GNU/Linux on PPC CPUs
An open, cross-platform journaling program.
A scientific plotting package.