… use Glitch on the command line.

… install packages from Nix, as long as you build them for a custom prefix.

… upload assets programmatically, as long as you update a "policy" file every day.

… manage your project like a normal disk, over WebDAV.

… install Discourse, although it takes three separate projects to provide enough resources for it all.

… run Visual Studio Code with cdr's code-server distribution.

… see what other projects are on the same server as yours.

… see which Glitch users are visiting your website.

… build text adventures.

… run a Discord bot without wasting your project hours.

… run a Terraria server, as long as the maps are tiny.

… build an Android app.