You could give KitchenOwl a try (disclaimer: I'm the developer). Has apps for iOS/android and other platforms.

Thanks, you're right. I've updated the docs yesterday a bit and changed some links and forgot to update them on the landing page. For anyone looking for more screenshots, they can be found in the GitHub readme.

I've used KitchenOwl for this (I'm the developer), it's FOSS but doesn't support multiple currencies. It has an overview where you can breakdown costs by categories and see who ows whom.

Ja gut in diesem Fall ist es vielleicht nicht so schlimm, aber wäre das ganze jetzt auch okay auf einer Landstraße mit 70 oder 100? Wo zieht man da die Grenze? Wie ist es mit Parkverbotsschildern? Es ist schon richtig, dass man nicht einfach Schilder die Straßenschildern ähneln aufstellen kann.

Thanks for the feedback and kind words! Do you mean clunky ressource or UI wise? If it's UI wise feel free to suggest improvements in this issue

I always liked planetary annihilation. It is really easy, looks decent, and has a native Linux version. That it's placed in a planet system makes it different to many other RTS.