One major benefit of Maplibre over Mapbox is that we can add [custom terrain layers sources](Custom MapLibre Terrain Tiles | bert (wordpress.com))

• Main requirement is that the tile needs to converted into mapbox RGS tiles which in the an x /y/z file structure. [mbutil](mapbox/mbutil: Importer and Exporter of MBTiles (github.com)) can help with this.

[But what if you had to create a raster data set from height points?](Interpolating Point Data — QGIS Tutorials and Tips)