I suspect full screen Emacs in gnome, while not brilliantly efficient, is close enough to this project that I may as well stick with the mostly inert gnome layer
The maintainers are conservative about breaking changes. Almost all features are hidden behind “use” statements: for example, “use feature "bitwise"” splits the questionable & operators into & for numbers and &. for bitstrings. But old code will work exactly the same.
There are a few deprecations and things which have been removed from the language…like idioms that relied on interpreter bugs and have been obsolete for 20 years.
But if you run a Perl script without use strict, use warnings, or new command line flags, you’ll get a Perl experience largely unchanged since the turn of the century.
https://sourceforge.net/projects/perlwm/
Last updated in 2004, just needs a touch of polish and she will be as good as new.