ShareX_Storage/nginx_example.conf

upstream filehoster {
    server file_hoster:80;
}

server {
    listen 443 ssl http2;

    server_name your-domain.net;

    # ShareX_Storage prefix is /f
    location /f/ {
        client_max_body_size 100M;
        proxy_pass http://filehoster$uri/$server_name;
    }
}