Generate feeds for all categories, instead of only configured categories

[Xaymar]

To my knowledge it is not currently possible to have feeds automatically be generated for all categories, unlike tags. This appears to have had past requests, which were all closed either automatically or via PRs that only implemented this for tags. I would like to not have to modify _config.yml for every new category I add to the Jekyll site, if at all possible.

Is this possible? If not, is there a bounty program where I can put down some money for this to be added?

[jekyllbot]

This issue has been automatically marked as stale because it has not been commented on for at least two months.

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This issue will automatically be closed in two months if no further activity occurs. Thank you for all your contributions.

[parkr]

I see in the readme that the config is just feed.tags: true, so I'd recommend something similar here:

feed:
  categories: true