#+TITLE: Re: org-capture popup single-window — landed config-side, live in the daemon

* Landed

Fixed config-side in =.emacs.d= (=modules/org-capture-config.el=), not in the quick-capture script. That module already owns the popup-frame handling (the existing =org-capture-after-finalize-hook= that deletes the "org-capture" frame), so the single-window logic belongs next to it.

Root cause matched your analysis exactly: =org-mks= shows =*Org Select*= via =switch-to-buffer-other-window=, and =org-capture-place-template= shows the =CAPTURE-*= buffer via =pop-to-buffer= with an explicit split action — both split the small floating frame.

* The fix

One frame-scoped =display-buffer-alist= entry handles both call sites. Its condition matches when the selected frame is named "org-capture" AND the buffer is =*Org Select*= or a =CAPTURE-*= buffer; its action puts that buffer in the frame's sole window (=delete-other-windows= + =set-window-buffer= on the frame root). Since =display-buffer-alist= outranks the caller's action, it takes over both the menu and the capture buffer.

Scoped to the "org-capture" frame name only — normal in-Emacs captures keep their windows, exactly as the finalize-hook already does.

* State

- Live in the daemon now (live-reloaded), so verification does NOT need an Emacs restart — just press Super+Shift+N.
- Test coverage: 7 ERT tests in =tests/test-org-capture-config-popup-window.el= — the pure frame+buffer predicate (Normal/Boundary/Error) plus an integration test proving a =CAPTURE-*= buffer lands in a single window through the real =display-buffer= path. Full org-capture-config suite green, no regressions.
- The change is in the =.emacs.d= working tree, uncommitted for now (Craig pushes at end of session), but it's active in the running daemon regardless.

* Your verify

Per your DOING task, verify end-to-end on ratio: Super+Shift+N, confirm the =*Org Select*= menu fills one window (no top sliver of the last-visited buffer, one modeline), pick a template, confirm the =CAPTURE= buffer also fills one window, then finish/abort and confirm the frame still closes. If anything still splits, send a note back with a fresh grim crop and I'll iterate.

Your evidence screenshot (=popup-crop.png=) was saved durably into =.emacs.d/inbox/= so it survives the /tmp reboot.