Just install mal-sync addon to update your list from any site

They have a multilingual site, but for some reason, it is separated from the Polish version: https://dafi.info/en/

Ah, yes. Buses, trams, subway and trains within the city.

Not the chepest country in EU, but it is cheper than most western european countries.

In Warsaw for example:

cheapest full meal in town 35zł

big set in macdonalds 48zł

full day public transportation ticket 15zł

72h public transportation ticket 36zł