[mcarni]

just to say that i solved my issue

I am not sure it was the cleanest way, but basically i removed the crontab entry and created 2 --user systemd units, one for kodi and one for steamlink.
each entry has a ExecStopPost to launch the other application, so basically if i exit from kodi steamlink starts and vice versa.
the only difference is that kodi has also an WantedBy=multi-user.target so that it gets started on login (done automatically)

i leave the two systemd units here in case this can be of any help

M

kodi.service:

systemd:
[Unit]

Description=Kodi



[Service]

ExecStart=/usr/bin/kodi

ExecStopPost=/usr/bin/systemctl --user start steamlink.service



[Install]

WantedBy=multi-user.target

steamlink.service:

systemd:
[Unit]

Description=Steamlink



[Service]

ExecStart=/usr/bin/steamlink

ExecStopPost=/usr/bin/systemctl --user start kodi.service