An everyday terminal

Alto is a full terminal you can live in, not only a place to park agents.

libghostty for the terminal itself: fast and correct, the same core as Ghostty.
Tabs in the title bar, each with its shortcut (⌥1 to ⌥8, ⌥9 for the last), its agent’s mark and its title. Drag to reorder.
Splits right and down, focus by direction, resize, zoom one pane, equalize.
Profiles and themes: a look and a shell per profile, built-in Alto Dark and Light, your own themes, or any of Ghostty’s if it’s installed. See Settings and profiles.
Search in the scrollback, links, and native selection and scrolling: nothing like tmux’s copy mode in the way.
Images: Kitty graphics, iTerm2 inline images and Sixel.
The Kitty keyboard protocol, so programs that ask for it get every key unambiguously.
Fonts on demand: alto fonts list and alto fonts install NAME download a font, checked against its pinned SHA-256.