http://runnable.com/VNSdSO0olicbFplB/tcl-template - a VM template with a Tcl 8.6.3 interpreter on a disposable online VM service. The interpreter is a TclKit built with KitCreator. It includes the following packages: mk4tcl, tcllib, tclx, tls, udp, yajl-tcl. The service gives you root on an Ubuntu VM. The downside is that it is slow and apt-get seems broken right now (it used to work).