+### Building Factor from source
+
+If you have a build environment set up, then you can build Factor from git.
+These scripts will attempt to compile the Factor binary and bootstrap from
+a boot image stored on factorcode.org.
+
+To check out Factor:
+
+* git clone git://factorcode.org/git/factor.git
+* cd factor
+
+To build the latest complete Factor system from git:
+
+* Windows: build-support\factor.cmd
+* Unix: ./build-support/factor.sh update
+
+Now you should have a complete Factor system ready to run.
+
+[More information on building factor](http://concatenative.org/wiki/view/Factor/Building%20Factor)
+
+### To run a Factor binary:
+
+You can download a Factor binary from the grid on [http://factorcode.org](http://factorcode.org).
+The nightly builds are usually a better experience than the point releases.