Lock folders?

[yawns]

One problem I see there is this:
If you lock down folder access rights, your scripts might fail too and it will be a hassle to get this right. I second “FlatPepsi” … make a backup and let them play

[johnnyboy]

This post is deleted!

[yawns]

@johnnyboy
Ok. But when he is 9, how does he get SSH access to your pi?

[johnnyboy]

This post is deleted!

[strawberry 3.141]

@johnnyboy kids nowadays… I had my first computer and mobile phone with 16

[yawns]

I never played around with it. Maybe you could add a new user, change the password for user pi and remove write access for standard users for custom.css and config.js ?