https://roming20.r-universe.dev/lightsfhttps://roming20.r-universe.dev/api/packages/lightsfhttps://roming20.r-universe.dev/lightsf/lightsf.pdfhttps://roming20.r-universe.dev/lightsf/doc/manual.htmlhttps://roming20.r-universe.dev/lightsf/citationhttps://roming20.r-universe.dev/lightsf/citation.txthttps://roming20.r-universe.dev/lightsf/citation.cffhttps://roming20.r-universe.dev/lightsf/doc/lightsf_vignette.Rmdhttps://roming20.r-universe.dev/articles/lightsf/lightsf_vignette.html