Hi Everyone,
Here is the unofficial OpenBlackHole Image for Zgemma H7 which I compiled yesterday.
Since I don't have this box with me so I haven't tested it myself and providing it on as is basis for anyone willing to test it.
It does not have in built feed but I am also sharing the link of plugins folder on Google Drive from which you may download plugins IPK files.
openbh-4.3.015.release-zgemmah7_usb.zip