fosforo on the App Store: a Terminal With a Shell of Its Own

crg@crg.eti.br (Cesar Gimenes) — Tue, 20 Oct 2026 06:00:00 -0300

fosforo is on the App Store. Free, for iPad and iPhone; the Mac build is a Homebrew cask. It is a terminal emulator in C and Swift, drawn with Metal, and on iOS it carries its own shell, its own SSH client and its own Mosh client. Open the app on an iPad with no network and you have a prompt, a filesystem, pipes and sixty-odd commands. That is the part I am happiest about.

Swift on Cesar Gimenes

fosforo on the App Store: a Terminal With a Shell of Its Own