TwoNav Terra experiences?

[Przekątny]

There was talk about the possibility of converting Garmin maps (non-commercial) into files supported by Two Nav devices about 12 years ago, I experimented with .mp and .img files, at that time I had to manually edit the icons, the overall effect was poor, I guess there was no routing, there was a limitation in the size of the area. Nowadays, a lot has certainly changed, maps based on Osm and other independent creators are available.
I think nowadays anyone can convert a non-commercial Garmin map to a .MPVF file on their own.

[987]

HI, do you happen to know which software can make this conversion?
Are *.MPVF vector format? it is not said in twonav manual.