Besides, recently I found a quite interesting paper by Timothée Floure titled "Experimenting with Matrix federation over Yggdrasil":
https://www.epfl.ch/labs/dedis/wp-content/uploads/2020/01/report-2019-2-Timothee-Floure-Matrix-federation-over-Yggdrasil.pdf
So with the generous help of members of the Russian Guix community (https://t.me/gnu_guix_ru) I finally prepared a patch series for GNU Guix that updates Yggdrasil to 0.5.2:
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=67111
#guix #patches #yggdrasil