Why are people interested in #guix ?
Declarative configuration (80%) and it's cousin Reproducibility (70%) were top choices which come from the #Nix heritage.
"Scheme, Guile and Lisp are cool" (72%) was second. This seems a different trend - interest in #lisp, #scheme perhaps driven by approaches in langs like #javascript - also some influence from #emacs community
Then came #FSF #GNU and #FOSS interest in Free Software (43%). Then #linux package management!
See:
https://guix.gnu.org/en/blog/2025/guix-user-and-contributor-survey-2024-the-results-part-1/