My Emacs configuration https://git.cjennings.net/dotemacs/atom?h=main 2026-06-05T10:28:58+00:00 2026-06-05T10:28:58+00:00 Craig Jennings c@cjennings.net 2026-06-05T10:28:58+00:00 urn:sha1:ebdf9e466b0e1f86e9b7d76650ac32408273e7a7 I swapped the terminal engine from vterm to ghostel (libghostty-vt) everywhere. term-config replaces vterm-config (the F12 terminal, the C-; x menu, tmux history capture), and ai-term replaces ai-vterm (the F9 Claude-agent launcher). ghostel renders the agent TUI without vterm's flicker under heavy streaming, and one engine now covers every terminal workflow. Two behavior changes fall out of the swap. F9 launches in a terminal frame now: ghostel renders in TTY frames, so the old GUI-only guard is gone. Terminal windows no longer dim when unfocused: ghostel resolves its palette into the native module per-terminal, so there's no per-window color hook to dim through the way vterm had. auto-dim drops its vterm color-advice path, the dashboard Terminal button launches ghostel, and the vterm and vterm-toggle packages are removed. The tmux pane-history and copy-mode machinery carried over unchanged. It keys on the pty tty, which ghostel exposes. 2026-06-02T18:04:37+00:00 Craig Jennings c@cjennings.net 2026-06-02T18:04:37+00:00 urn:sha1:38dad925528e05f2084474ead5519a6a6ceb70f7 F9 toggle-off used quit-restore-window to dismiss the agent. With several agents alive sharing one slot, switching among them (C-F9) reuses the window via set-window-buffer, which leaves the window's quit-restore parameter pointing at the first agent shown. Once stale, quit-restore-window falls back to switch-to-prev-buffer and surfaces a different agent instead of removing the window, so F9 appeared to "show another agent" rather than hide the split. Toggle-off now collapses the split with delete-window, which is independent of the slot's buffer history, so the working buffer reclaims the frame. Geometry is captured first so the next toggle-on re-splits at the same width. Toggle-on reopens the exact agent that was hidden (new cj/--ai-vterm-last-hidden-buffer), falling back to the most-recent agent only when that buffer has been killed. Hide-then-show is now a faithful round trip, not a jump to whichever agent is most-recent in buffer-list. Sole-window toggle-off returns to the most-recent non-agent buffer instead of other-buffer, which could land on another agent. I updated the two reuse-edge-window tests that asserted the old restore-displaced-into-a-kept-slot behavior to match the new always-collapse behavior.