[nickpsecurity]

Whats the best resource for Tcl ecosystem and getting its main benefits?

[luckydude]

http://www.tcl.tk/about/language.html

is decent place to start. Then move on to

http://www.tcl.tk/software/

and there are all the Tk (GUI) APIs and libraries.

If you wade through that, or you get stuck, #tcl on freenode is a great resource.

Edit: #tcl told me to pass on this:

https://core.tcl.tk/jenglish/gutter/index.html