An informative article for Bluewater Cruising’s “Currents” magazine by Rob Murray, who wrote an article on making MBTiles for use in OpenCPN or other navigation programs in 2020. Here he shares some changes and updates he has learned since then, that cruisers may find helpful.
https://currents.bluewatercruising.org/articles/revisiting-mbtiles-for-opencpn/