How can you install games on an new 3ds xl and is it safe.

Yes
Yes but pointless
Cfw
Yes
Yes
No
Yes
https://3ds.hacks.guide/

 

Alright, I'm gonna try to answer your questions one by one.

Q:Can you install games for free, without destroying your system?
A:Yes, but we do not condone piracy and will not provide links to any games.

Q:Can you delete changes that you make to your system?
A:Mostly, yes. But it is not recommended to do so.

Q:What do you need?
A:Firstly, any console from the 3DS or 2DS family of systems (obviously) an SD Card or Micro SD Card, depending on the system, (It should come with one), and some way to connect the SD Card to a computer. And finally, the cfw files which you will get from a guide I will mention later.

Q:Can you keep the original 3DS home menu?
A:Yes, to my knowledge no hacks will replace your 3DS's home menu.

Q:Is it safe?
A:Yes, BUT ONLY IF YOU ARE CAREFUL! As long as you don't do anything stupid, you should be fine. Though keep in mind, your 3DS may decide to brick itself anyway, but as long as you have a backup file, you should be fine.

Q: Does it make your system slower?
A:No, not at all! The only slowdown you should receive from hacks is from running said hacks if they are intense for the system. But they won't make normal operation any slower than usual.

Q:Are the games on the SD card?
A:If you are installing them to the home menu, I believe so, yes.

Q:How do you do it?
A:The best place to learn is at a site called 3ds hacks guide. it will tell you everything you need to know. DO EXACTLY AS IT SAYS, OR ELSE YOU MAY RUIN THE CONSOLE.

Well, I hope I helped you with these answers!