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OpenCode displays/behaves incorrectly when launched inside Neovim’s terminal (running in Kitty) — works fine in Kitty directly #2257
Description
Description
When I launch opencode inside Neovim’s integrated terminal (with Neovim itself running inside Kitty), the TUI is broken: right border artifacts, misaligned input area, and unstable interaction.
When I launch opencode directly in a Kitty tab, everything works as expected.
Screenshot: left = Neovim :terminal running opencode (broken), right = Kitty terminal running opencode (OK).
(see attached image)
Steps to Reproduce
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Open Kitty.
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Start Neovim.
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Open Neovim’s built-in terminal: :terminal.
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Run opencode.
Compare the result with running opencode directly inside Kitty (without Neovim).
Observed Behavior
- Broken TUI rendering inside Neovim’s terminal (right border cut off, input box misplaced).
- Background stays black (instead of taking native background)
Version: opencode v0.5.12 (shown in UI).
Expected Behavior
Should render and behave exactly the same as in Kitty: clean interface, stable input area, working shortcuts.
Environment
OS: Windows 10
Terminal: Kitty.
Neovim: running inside Kitty, with :terminal.
OpenCode: v0.5.12.
Note
For reference crush had similar issue at the beginning that has been fixed (couldn't find the right commit) cf
Activity
github-actions commentedon Aug 26, 2025
This issue might be a duplicate of existing issues. Please check:
Feel free to ignore if none of these address your specific case.
blaadje commentedon Aug 26, 2025
Closing this as
systemtheme provided by env variable fixed the layout issue. (fish :set -x OPENCODE_THEME system)Still scrolling through content in normal mode is not possible, which is basically why I would use opencode in nvim.
hongkongkiwi commentedon Sep 20, 2025
This absolutely doesn't fix the issue for me. Scrolling no matter the theme only scrolls through the command window! Not the actual chat output (which is what I want).