% git clone https://github.com/amirouche/scheme-united united 2> /dev/null
% cd united/
% ./venv 


  🚀 🛰  Entering scheme-united environment 🌝 🌱

% ./bin/scheme-united chicken install
% csi
CHICKEN
(c) 2008-2022, The CHICKEN Team
(c) 2000-2007, Felix L. Winkelmann
Version 5.3.1 (rev cc522ddb)
linux-unix-gnu-x86-64 [ 64bit dload ptables ]

Type ,? for help.
#;1> (+ 1999 7)