Remote Shack with Expert Remote
'all-in-one-place' practical setup guideThe only configuration to confirm with SDR is its IP address set to factory default 192.168.16.200
When ready, connect SDR with Ethernet cable into port ETH2 Mini-PC and power up the device.
Once SDR powered, you should see it in Raspberry PI's browser connected to localhost:5531:

Now it is time to add SDR to Location in Expert Cloud:

and test with ESDR2 - ether via own account or shared link.
For those interested to understand what real load the opnSense Gateway/FW registers, when remote connection is online, here are the details for model N5105 Intel(R) Celeron(R) N5105 @ 2.00GHz (4 cores) 8GB RAM 128GB SSD:

Memory on average 4.1%
Disk utilisation less than 1%
Inbound Traffic: max 5Mbps
Outbound Traffic: max 4Mbps