Have you tried hiring developers to do the work that you want?

I just cannot understand the entitlement of demanding some open source developer must do particular unpaid work that users are demanding.

With open source, you can fork the project.

It should be okay for an open source maintainer to say “no”.

I’ve noticed that some “mobility” startups are using Linux. E.g. companies working on electric or automated vehicles.

Yes, but does that still count as “modern”?

I think you mean Tactics Ogre. Although it’s a spinoff of another game called Ogre Battle.

BTW, there is a miniflux package in Debian testing / unstable: https://tracker.debian.org/pkg/miniflux

I’m also interested, but I haven’t kept up with the project. It sounds nice if data can be shared between apps, rather than each app just managing its own tables in a database.