The documentation
specifies the annotation field and even goes so far as to mention it's
use in annotated bibliographies:
annotation field (literal) This field may be useful when implementing a style for annotated bibliographies...
The problem is, I do not know how to invoke the annotated bibliography
"style" using biblatex.
Without biblatex it seems you could use
\bibliographystyle{annotate},
but trying to use it with biblatex throws "\bibliographystyle invalid".
I want to achieve the same thing as this answer, but with biblatex, ideally leveraging it's annotation field.
What I have in my .bib is:
@misc{kyber,
author = {Leon Botros and Matthias J. Kannwischer and Peter Schwabe},
title = {Memory-Efficient High-Speed Implementation of Kyber on Cortex-M4},
howpublished = {Cryptology ePrint Archive, Report 2019/489},
year = {2019},
note = {\url{https://ia.cr/2019/489}},
annotation = {Crystals-Kyber PQC spec (one of the NIST PQC finalists).}
}

bibstyle=reading. – gusbrs Mar 18 '22 at 00:34biblatexhas a dedicated field for URLs calledurl. So instead ofnote = {\url{https://ia.cr/2019/489}},you can sayurl = {https://ia.cr/2019/489},. – moewe Mar 18 '22 at 04:50style=reading, you can use the method shown in https://tex.stackexchange.com/q/442062/35864, https://tex.stackexchange.com/q/560417/35864, https://tex.stackexchange.com/a/502632/35864, https://tex.stackexchange.com/q/401503/35864. – moewe Mar 18 '22 at 04:53