Working with MosaicJSON and multiple bands in different files

[Duke74]

Hi,

Thanks for this awesome project, it's really helpfull.

I've been doing some tests with sentinel2 data lately and the tiler is working great with a mosaicJSON file that link directly to cog files like this :

{
"mosaicjson": "0.0.3",
"version": "1.0.0",
"minzoom": 11,
"maxzoom": 15,
"quadkey_zoom": 11,
"bounds": [-127.87505894081966, 23.562648562762604, -111.8838502136324, 41.55183566226867],
"center": [-119.87945457722603, 32.55724211251564, 11],
"tiles": {
"02122323032": ["https://sentinel-cogs.s3.us-west-2.amazonaws.com/sentinel-s2-l2a-cogs/9/T/XF/2024/6/S2A_9TXF_20240628_0_L2A/TCI.tif"],
"02122323033": ["https://sentinel-cogs.s3.us-west-2.amazonaws.com/sentinel-s2-l2a-cogs/9/T/XF/2024/6/S2A_9TXF_20240628_0_L2A/TCI.tif"],
...,

Now rather than using the TCI sentinel files I would like to work with the different cogs available for each items exemple here:
https://radiantearth.github.io/stac-browser/#/external/earth-search.aws.element84.com/v1/collections/sentinel-2-l2a/items/S2B_32TLR_20241104_0_L2A

Like for exemple merging the red, green ,blue from the different single band cogs available, rather than using the TCI file

But my issue is I'm not sure how to do it. The mosaicJSON spec doesn't seems to make it possible to have multiple files for multiple bands for a same tile.
Can mosaicJSON link directly to the STAC items ?
But then what parameters to use when requesting the tiles ?

Thanks for the help !