how to use geojson-vt in projecting from EPSG:4326 to EPSG:3826

Since the projection in geojson-vt is from EPSG:4326 to EPSG:3857, and what if I use proj4leaflet.js to
project EPSG:4326 to EPSG:3826, or other coordinate system , is the geojson-vt can still work well?
And if not, how could I modify the source codes to meet that, thanks a lot.

Start by reviewing geojson-vt's EPSG:4326-to-EPSG:3857 projection assumptions alongside proj4leaflet.js and the EPSG:3826 example described in the issue. Determine whether alternate coordinate systems are supported, then define the required behavior and a verifiable test or documentation outcome for non-3857 projections.

Written by the indexing model from the issue text.