vyla

google appmaker. it had blocks you could drag to do stuff. i made a few games where you click stuff to make other things show and change the color of things, kind of like point nad click adventures but eith just buttons and background colors

then a year later i found scratch and i got addicted. scratch -> python -> html/css/js and nodejs -> visual basic for a bit -> ...

For websites, there is a webmanifest file that has the app name and icon stuff. I'm not sure if lemmy makes this easy to configure