Suggest an alternative to

sidekick.el

Sidekick is a Emacs package that provides information about a symbol inside a single window.

Why do you think that https://gitlab.com/protesilaos/mct is a good alternative to sidekick.el

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with sidekick.el. Optional.

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