k (specifically k3) runs on FreeBSD if you use linux emulation. The same is true of q. IIRC, there are no limits on the 32 bit version of q (unlike the old k3). kona is more portable but needs work.
I have an old license for a 2.x version which removes the workspace limits.
/emul/linux is how I use k on NetBSD. However I hesitate to rely on Linux emulation because it does not seem to be something that is important to current BSD developers. If I am not mistaken, both OpenBSD and Dragonfly have removed it.
