This mode technically just connect slime-company to Cape mode.
(use-package slime-cape
:straight (slime-cape :type git :host github :repo "ccqpein/slime-cape")
:hook
(slime . slime-cape)
(slime-repl . slime-cape)
)
(use-package slime
:config
(slime-setup '(slime-fancy slime-repl slime-scratch slime-trace-dialog slime-cl-indent slime-cape))
)