[0] Config.pm:311> INFO - This is Biber 2.16
[0] Config.pm:314> INFO - Logfile is 'slides.blg'
[61] biber:340> INFO - === Di Sep 27, 2022, 09:56:37
[76] Biber.pm:415> INFO - Reading 'slides.bcf'
[129] Biber.pm:952> INFO - Found 0 citekeys in bib section 0
[134] Utils.pm:395> WARN - The file 'slides.bcf' does not contain any citations!
[141] bbl.pm:654> INFO - Writing 'slides.bbl' with encoding 'UTF-8'
[141] bbl.pm:757> INFO - Output to slides.bbl
[141] Biber.pm:128> INFO - WARNINGS: 1