Add NMEA2000 PGN's?

[myervin]

So there are lots of boaters (like me) that would like to use RV-C devices on their NMEA2000 (N2K) marine networks (which are identical in physical topology, the equipment just uses different connectors and shielded cable). For example the Garnet SeeLevel RVC versions and the Spyder AC Power Monitor. And perhaps vice-versa. Openplotter, SignalK, etc. are all well and good for N2K projects, but IMO are overkill in a lot of cases when just basic remote monitoring is the goal. I have deciphered a couple of the N2K PGN's, but unlike RV-C, the bit level details are not readily available to the public. Anyway, assuming that could be worked out, what would be the best approach, add all the N2K PGN's to the rvc-spec.yml or just create another instance e.g. n2k2mqtt.py and create a n2k-spec.yml. Since RV-C was modeled after N2K, as far as I can tell none of the PGN/DGN's between the two overlap. Please realize my knowledge of linux is very weak and limited. Thanks.