Hi, This is a feature that I personally need and will be implementing on my own fork over the next month or so. I'm happy to coordinate with anyone else who's interested in this and try to get it into the codebase if the maintainer greenlights including it.

Sorry, I'm not planning to change this because that requires the schema to be changed.

Not providing full support for the OMPL spec is pretty disappointing, but I understand your decision. At the very least the documentation should note the lack of support for multiple categories in OPML. Specifically, the OMPL Import section should note that even if a user's OMPL has multiple categories assigned to a feed, this will not be represented or editable in the miniflux UI and note which category will 'win' placement (it's been awhile, but I think it was alphabetical "Blog" would 'win' over "News").

I can also PR this on the website repo, if you'd like.

You could try to send a PR. I'm not against this feature. I'm just concerned about the number of changes required.

This is currently a blocker for me migrating to Miniflux as almost every feed as multiple categories (up to 8 for a single feed) in order to organize my several thousand feeds in a digestable manner.

@awesomizer did you try implementing this feature?

@darkdragon-001 I did implement it, but in the context of changing much about the app as it exists in this repo, so no benefit to anyone besides myself.