Great to see all the love for TCL here :) Too bad it's not more popular really but even I struggle to find cases where I'd prefer it. Usually it come down to bash for simple stuff and python everything else.
The starpacks/starkits for packaging apps together are really nice.
For anyone interested there’s a fork of the Tcl Dev Kit at: https://github.com/bandoti/tdk
This allows one to package applications with shared libraries and all bundled together.