I managed to run mruby on Lambda. You build the executable on the same Linux distro used by Lambda and you upload it in a zip. Then use node or python to run it. More of a gimmick than of a real thing. Anyway, IMHO given the 100 ms billing units the future for Lambda could be compiled languages, as soon as they'll let us run executables without a node or python wrapper. Maybe the tradeoff between programmer time and runtime costs will be different than for traditional deployments.