Convert MrSID to MBTiles (raster)

Hi, I seldom work with rasters so my question is basic, is the canonical way to convert MrSID to MBTiles to read pyramid level 0 from the SID, pass the image through WebMapTiler (with any zoom level filtering you need, or hands-free auto mode) then write to MBTiles with fanout expression @Value(_zoom_level) and feature type Somename_@Value_quadkey)? Thanks.