I didn’t try it myself yet, and it requires some little extra hardware. It basically just reads the smart meter on the P1 port, and emits that on a TCP/IP server or UART.
Also search for “P1 meter USB cable” on google, also on this forum are plenty of stuff to find:
Note: You even bypass the the delayed (and shady?) site of fluvius.
Good luck,
And … I am interested in your findings.
Bye,
K.