Welcome to the forums, Mega Pokal! It's really awesome to have you here. Since you're into the ROM Hacking boards, Zeria has that covered for you so do check it out when you can because you'll love all the great hacking tools and resources on hand.
There's the Team Room where you can recruit others to assist you in the project, and you can also consult the Beginner's Lounge if you have any questions about hacking where the section regulars and mods alike are always there to help you. In fact, PC is popular with hackers as some of the best ones were made right on these forums so you know you've picked the right community to pursue your hacking endeavors in.
Well, I'm no hacker but I do wish you good luck and hopefully you can successfully create a hack and share it for everyone to see. Have a great time on PC, and don't hesitate to ask any staff members if you need help!
- Hikamaru