[0] Config.pm:307> INFO - This is Biber 2.19
[0] Config.pm:310> INFO - Logfile is 'writeup.blg'
[174] biber:340> INFO - === Thu Oct 17, 2024, 12:48:58
[203] Biber.pm:419> INFO - Reading 'writeup.bcf'
[342] Biber.pm:979> INFO - Found 0 citekeys in bib section 0
[376] bbl.pm:660> INFO - Writing 'writeup.bbl' with encoding 'UTF-8'
[377] bbl.pm:763> INFO - Output to writeup.bbl
[377] Biber.pm:131> WARN - The file 'writeup.bcf' does not contain any citations!
[377] Biber.pm:133> INFO - WARNINGS: 1