\font\SILmfont={[/usr/local/texlive/texmf-local/fonts/truetype/Google/NotoSerifLao/NotoSerifLao-VariableFont_wdth,wght.ttf]:+clig;+liga;+tlig}\SILmfont
\def\SILmfontname{Noto Serif Lao Regular}%