m64th is a 64-bit embeddable forth compiler, interpreter and REPL
BETA i.e. REPL and most simple words are implemented, including : to define new words.
It has line editing and autocompletion.
Mac OS X, FreeBSD, OpenBSD, and other *BSD may also work (untested).
Windows is definitely not supported - volunteers welcome.
m64th is released under the terms of the GNU Lesser General Public License, as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.