tcllauncher , by FlightAware, dresses up a Tcl script in the trappings of any other standalone program within a system.
tcllauncher is a way to have Tcl programs run out of /usr/local/bin under their own name, be installed in one place with their support files, and provides commands to facilitate server-oriented application execution.
While there is another wrapper system that also does this, that system produces a single executable that contains all the code and support files within a built-in virtual filesystem wrapped inside the executable. Tcllauncher keeps the support files distinct, typically in a subdirectory of /usr/local/lib that's named after the application.
tcllauncher has a daemonize function, that allows a Tcl program to disassociate itself from a terminal/originating shell script/other program.