What about making a ball out of rope? You can get hemp rope or even make it yourself if you've got a lot of time to spare. You can have a rubber core so it's squishy and a rope shell to protect it, if she wants a squishy ball. Or make it completely out of rope so it's more durable but then it depends if she would like it.
He also says somewhere in the comments that apple simply wouldn't allow this app on the app store. But there's also the option of sideloading, I think that's free no?
He says in the video on yt that you can fork it and modify it however you want for personal use no problem. You just can't make money distributing it I think.
New nuclear reactors are fully or nearly fully automated I think. If humans disapeared overnight, they can fully shut down by themselves. Also newer reactors are made so that you need to actively monitor the reaction to even keep it going unlike old reactors (that are not in use anymore I think) that had you monitoring it to prevent it blowing up.
Never open ports to the internet unless you want everybody to see it. Always use VPN to access your selfhosted stuff. If you've got a lot of VPN connections to set up, try generating a QR code for the connection. Makes it a bit faster to setup the client.
We have similar problems with foreigners all the time, when they decide to climb mountains with flip flops and sandals, without much preparation and then they have to be rescues with helicopters.
"Your injuries shall coincide with OSHA regulations"