Biber 2.12 is incompatible with biblatex 3.11, which is what's currently packaged. This is a followup to 41a010875b. * gnu/packages/tex.scm (biber): Downgrade to 2.11.
41a010875b
* gnu/packages/patches/biber-sortinithash.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/tex.scm (biber)[source]: Use it.