Hi! I'm one of the people that worked on the game, in the future we will add english subtitles, whenever the english patch comes out, our team will make sure to announce it on our socials! Thank you for being so determined and going out of your way to play the game even if it's not in your first language!
The code for the station gate is given to you by ArkadiuszChocholak in dms on a forum, hope this helps!