Comment by 8n4vidtmkvmk
5 hours ago
I too built a terminal emulator and I like it, but I wouldn't say it's easy to maintain even with LLMs. The # of edge cases is insane.
5 hours ago
I too built a terminal emulator and I like it, but I wouldn't say it's easy to maintain even with LLMs. The # of edge cases is insane.
The cool thing is that you can use and adapt the tests of all major third party terminal implementations. Come up with your own invariants (brainstorm them with a smart LLM), and now every third-party test either passes, diverges (due to invariant/arch), or diverges (due to product bug).
And even if you aren't that robust about it, terminal apps are the sort of ideal vibe-coded app since, using it daily, you are giving it a constant real world test that uncovers issues to be fixed incrementally.
Is neovim over tmux over ssh glitching? LLM can fix it.
Is codex or claude code overwriting lines in the TUI, maybe due to alt screen, but it also happens in other major terminal apps? LLM can figure out why and whether you can come up with better general architecture to fix it.
Is there behavior you wish you had but no other terminal app supports? LLM can add it.
You can end up with a far better product than what you would find in the wild, and it's a fun sort of work.