CONCLUSION:
Thanks to your help I managed to replace a defunct Raspi+Rmf12b with a cloned Jeelink that was initially set for the “FHEM” environment (had to reflash it).
The Jeelink is connected to a 32bit-Ubuntu 18.04 virtual machine(with emonhub and emoncms) that runs on a 10+y old laptop with “Core2duo” processors. With some tweaking it works quite fine!
I AM HAPPY WITH THIS SETUP!
Side note: I had to use a 32bit ubuntu virtual machine because of my host pc restrictions. For some reason the “emonscripts” did not run fine in a 32bit ubuntu (maybe because it is kind of an unsupported environment). Scripts ran fine on a 64 bit ubuntu 18.04. I noticed that the variables on “config.ini” were not passed to the “main.sh” and so I run the “main.sh” commands by hand.