The breadcrumbs macro is intended for breadcrumbs provided from code,
for galleries and listings. You could build something with this and a
custom function passed in via GLOBAL_CONTEXT, although I believe it
would be easier to build something yourself, using Bootstrap4
breadcrumbs [0] directly in templates. You can take the breadcrumbs
samples, and then use post data and the _link function to build
category links.
[0]:
https://getbootstrap.com/docs/4.5/components/breadcrumb/
--
Chris Warrick <
https://chriswarrick.com/>
PGP: 5EAAEA16