Next step is removing the two resistors in the red circles. They are most probably used are a current divider to calculate the power provided to each outputs and reported back by the Shelly 2.5.
In our case, we remove them to completely isolate the relays output from the main 220V power.
To achieve a complete isolation (so a dry contact) we also need to cut some traces (below in red circles) and solder a couple of short insulated wires at the relays output as per pic below. More detail on those, later below.