I just checked and I installed Signal from F-Droid.

It says Repository: Guardian Project on the app page.

I am talking about Europe now:

we need trains. We need to unify the rail systems (rail width and electrical tensions) and the ticket systems. Europe could be easily served using a network of night train routes.

I think there should be way more political discourse about rail in the EU, but, for example in Italy, airports have been used as electoral campaigning devices.

Please notice I said real money. Of course they make some money from the tickets, but the highest number I could find is 60% of revenue, and you have to calculate that it is a hyper-regulated seasonal industry.

I don’t think airlines make any real money from the flights.