Make possible to share remote and local copy buffer via local listener, SSH remote tunnel and nc on remote host

tmux/tmux.remote.conf

@@ -2,6 +2,9 @@
 # so it do not stack together with local session's one
 set -g status-position bottom
 
+# Set port of SSH remote tunnel, where tmux will pipe buffers to transfer on local machine for copy
+set -g @copy_backend_remote_tunnel_port 11988
+
 # In remote mode we don't show "clock" and "battery status" widgets
 set -g status-left "$wg_session"
 set -g status-right "#{prefix_highlight} $wg_is_keys_off $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | #{online_status}"

tmux/yank.sh

@@ -9,6 +9,8 @@ is_app_installed() {
 # get data either form stdin or from file
 buf=$(cat "$@")
 
+copy_backend_remote_tunnel_port=$(tmux show-option -gvq "@copy_backend_remote_tunnel_port")
+
 # Resolve copy backend: pbcopy (OSX), reattach-to-user-namespace (OSX), xclip/xsel (Linux)
 copy_backend=""
 if is_app_installed pbcopy; then
@@ -19,17 +21,17 @@ elif [ -n "${DISPLAY-}" ] && is_app_installed xsel; then
   copy_backend="xsel -i --clipboard"
 elif [ -n "${DISPLAY-}" ] && is_app_installed xclip; then
   copy_backend="xclip -i -f -selection primary | xclip -i -selection clipboard"
+elif [ -n "${copy_backend_remote_tunnel_port-}" ] && [ "$(ss -n -4 state listening "( sport = $copy_backend_remote_tunnel_port )" | tail -n +2 | wc -l)" -eq 1 ]; then
+  copy_backend="nc localhost $copy_backend_remote_tunnel_port"
 fi
 
 # if copy backend is resolved, copy and exit
 if [ -n "$copy_backend" ]; then
-  printf "$buf" | eval "$copy_backend"
+  printf "$buf" | eval "$copy_backend" 
   exit;
 fi
 
-# TODO: send to local socket which is remote tunneled to "pbcopy|xclip" listener on local machine
-# TODO: otherwise fallback to OSC 52 escape sequence
-
+# If no copy backends were eligible, fallback to OSC 52 escape sequences
 # Copy via OSC 52 ANSI escape sequence to controlling terminal
 buflen=$( printf %s "$buf" | wc -c )