use screen on ssh connection, rename ttyd.sh to remote-login.sh

usr/lib/initcpio/install/archboot_remote

@@ -33,7 +33,7 @@ build ()
     add_symlink /etc/systemd/system/multi-user.target.wants/sshd.service /usr/lib/systemd/system/sshd.service
     # start ttyd on startup
     add_file /usr/lib/libwebsockets-evlib_uv.so
-    add_file /usr/share/archboot/remote/usr/bin/ttyd.sh /usr/bin/ttyd.sh
+    add_file /usr/share/archboot/remote/usr/bin/remote-login.sh /usr/bin/remote-login.sh
     add_file /usr/share/archboot/remote/etc/systemd/system/ttyd.service /etc/systemd/system/ttyd.service
     add_symlink /etc/systemd/system/multi-user.target.wants/ttyd.service /etc/systemd/system/ttyd.service
     # fix licenses

usr/share/archboot/base/etc/profile.d/custom-bash-options.sh

@@ -25,3 +25,8 @@ fi
 if [[ -z "${TTY}" && -z "${SSH_TTY}" ]]; then
     [[ "${SHLVL}" == "2" ]] && cat /etc/motd
 fi
+# run remote-login.sh on ssh connection
+if [[ -z "${STY}" && -n "${SSH_TTY}" ]]; then
+    /usr/bin/remote-login.sh
+    exit 0
+fi

usr/share/archboot/remote/etc/systemd/system/ttyd.service

@@ -7,7 +7,7 @@ After=syslog.target
 After=network.target
 
 [Service]
-ExecStart=/usr/bin/ttyd ttyd.sh
+ExecStart=/usr/bin/ttyd remote-login.sh
 Type=simple
 Restart=always
 User=root

usr/share/archboot/remote/usr/bin/remote-login.sh

@@ -2,11 +2,11 @@
 # SPDX-License-Identifier: GPL-2.0-only
 # Created by Tobias Powalowski <tpowa@archlinux.org>
 
-# simulate login from tty
-if ! [[ -e /tmp/.setup-running ]]; then
+# simulate login from tty on first screen session
+if ! screen -ls &>/dev/null; then
     cat /etc/motd
     echo -e "Hit \e[1m\e[92mENTER\e[m for \e[1mshell\e[m login."
     read -r
 fi
 . /etc/profile
-screen -q -R
+screen -q -xRR