This is such a stupid mistake by me, but I would also consider this a bug on yalc..

I did NOT install any packages using yalc. But I thought I did, because my packages.json and package-lock.json were modified. So I ran:

yalc remove --all

And the result:

my/current/path/.yalc is not empty, not removing it.

Which is such a weird message. ".yalc not empty, so we won't remove it" -- if it's NOT empty, THEN you should remove it!

It took me quite a while to figure out not yalc package was installed. The message should imo be like: no yalc packages installed, nothing to be done.