Ok gotcha. The problem is that those instructions asume you can SSH into other providers’ hardware (FR42, Flightaware, etc.) and I don’t think that’s even possible.
So my question is, is sharing ADSB data via using any emitting ports on those devices not possible anymore?
You can try bringing it up on the discord server, lots of smart people there. But unfortunately FR24 does not publish their changes and technically using their hardware to feed others is against their TOS so ADSBx has no control over if they make that possible.