To use this theme:

1. install fonts. FiraGO, firamath(build from source) and Source Han Sans SC.
2. use xelatex. .latexmkrc generated by chatgpt

$pdf_mode = 1;
$latex = 'xelatex %O %S';
$pdflatex = 'xelatex %O %S';
$dvi_mode = 0;  
$postscript_mode = 0;