+### Erlang
+
+Requires [rebar](https://github.com/rebar/rebar) to build.
+
+```
+cd erlang
+MAL_STEP=stepX_YYY rebar compile escriptize
+./stepX_YYY
+```
+
+### Factor
+
+*The Factor implementation was created by [Jordan Lewis (jordanlewis)](https://github.com/jordanlewis)*
+
+The Factor implementation of mal has been tested with Factor 0.97
+([factorcode.org](factorcode.org)).
+
+```
+cd factor
+FACTOR_ROOTS=src factor -run=stepX_YYY
+```
+