[FEATURE]: Add support for Linux PRIMARY selection (middle-click paste)

[bornmw]

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

Description

Currently, the TUI only targets the CLIPBOARD selection when copying text. On Linux, this means that while Ctrl+C/V works, the native "highlight to copy" and "middle-click to paste" behavior (PRIMARY selection) is not supported.

This makes the TUI feel non-native on Linux environments.

Proposed Solution

Introduce a new configuration option linux_clipboard_selection in the TUI config with the following values:

• clipboard: Standard Ctrl+C/V (current behavior)
• primary: Targets the middle-click buffer
• both: Updates both buffers simultaneously (recommended default)

This requires using xclip, xsel, or wl-copy to explicitly target the primary selection.

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• X Window (xorg) middle-click paste doesn't work #6072: X Window (xorg) middle-click paste doesn't work — describes the same underlying behavior (middle-click/PRIMARY selection not working on Linux/X11)

If your request is specifically about adding a configuration option to target the PRIMARY selection (not just fixing middle-click paste), it may still be distinct enough to stand on its own. Please check #6072 and let us know if this covers your use case or if your request is different.

[bornmw]

#6072 is different as it covers pasting into OpenCode, while mine covers copying from OpenCodeSent from my iPhoneOn May 29, 2026, at 11:56 PM, github-actions[bot] ***@***.***> wrote:#6072

[simonklee]

Ideally i'd like to lower all of this (pr and clipboard things) to OpenTUI, but i think for now this may be good.