Enoughy is a daily screen-time limit for a child's Windows PC that the parent sets from this page.
Register with a login and a password; this makes your family.
Type the child's name; the page shows a setup code.
On the child's PC, open enoughy.com/install, run the installer and type the setup code.
Back on your page, the child appears after the first sync; set the daily limit and the hours there.