I'm still using the built in MacOS terminal. What am I missing? I mostly do webdev - maybe terminal features are more important for other types of programming?
With both Ghostty and iTerm2 now freely available, there's really no reason to use Terminal.app.
[1]: https://mitchellh.com/writing/grapheme-clusters-in-terminals
[2]: https://github.com/neovim/neovim/issues/26093
- “Kitty Keyboard Protocol” means that a TUI app can detect all keybindings. For example, if you install kkp.el in Emacs, then Emacs running in a terminal will pick up ctrl+shift keys, super keys, etc. on par with a GUI app. I believe NeoVim supports this out of the box now as well, so if you ever felt like binding Cmd+S to :w<cr> you now can. - “Kitty Graphics Protocol” means that I can let e.g. Matplotlib show images inside a terminal, even over SSH connections. If you’re annoyed at pop-up GUI windows, or struggling with viewing remote images often, this is a nice workaround. There are even attempts at making terminal PDF viewers (like termpdf.py); IMO that’s a game changer, even though the app itself is still in a “proof of concept” stage IMO. - Terminal splits. If you work a lot in a terminal, it’s nice to be able to full-screen a terminal and view many different shells or processes side-by-side. Last I checked, Terminal.app just doesn’t have this feature. Sure, you could use multiple windows or a multiplexer like tmux, but that comes with different trade-offs; for example, a native terminal offers smooth scrolling with a trackpad whereas tmux doesn’t. Personally, I use tmux remotely, but stopped using it locally. - I see a lot of people mention 24-bit colors as a main reason to not use Terminal.app. For me, I’m actually pretending that I have a 16-color terminal, because I’m tired of having to theme every command-line utility individually, I’d rather they all just respect my 16 chosen colors instead. The only exception is my editor, just because there are unfortunately few good 16-color themes these days, so I instead change my terminal program to be consistent with my editor theme and then let every other TUI utility believe the terminal only supports 16 colors to match.
But in practice 24-bit was an easy lift for terminals under active development ages ago, and in turn made it trivial to have everyone across any platform specify exact colors more easily without any end user customization or arguments about "not quite what I wanted" in an 8-bit palette or whatever. Thus a lot of the ecosystem now makes use of it. Being able to replicate anything yourself, or get close enough, in a smaller colorspace is still extra grunt work for no particularly valuable reason, and could actually add up to be fairly significant work if one has a lot of more complex code coloring themes and such.