NetVM: netvm-chrome.sh auto-detects Wayland display

bin/netvm-chrome.sh

@@ -22,6 +22,18 @@ while [ $# -gt 0 ]; do
   esac
 done
 [ -n "$PROFILE" ] || { usage; exit 1; }
+# Visible launch needs a display. Auto-detect Wayland when the shell
+# doesn't have one (e.g. ssh/bare terminal on a Wayland desktop).
+if [ -z "${WAYLAND_DISPLAY:-}" ] && [ -z "${DISPLAY:-}" ]; then
+  for _s in "/run/user/$(id -u)"/wayland-*; do
+    case "$_s" in *.lock|*'\*') continue;; esac
+    [ -S "$_s" ] || continue
+    export WAYLAND_DISPLAY="$(basename "$_s")"
+    [ -z "${XDG_RUNTIME_DIR:-}" ] && export XDG_RUNTIME_DIR="/run/user/$(id -u)"
+    echo "display: auto-detected WAYLAND_DISPLAY=$WAYLAND_DISPLAY" >&2
+    break
+  done
+fi
 NODE="$PROFILE"
 netvm_names "$NODE"
 CHROME_BOX="${CHROME_BOX_BIN:-$HOME/Projects/chrome-box/chrome-box}"