BTW, the newly updated ‘guix’ package is 8% smaller, as a result of <https://issues.guix.gnu.org/70398>:
--8<---------------cut here---------------start------------->8--- $ guix describe Generation 302 May 12 2024 23:29:11 (current) guix 89cd778 repository URL: https://git.savannah.gnu.org/git/guix.git branch: master commit: 89cd778f6a45cd9b43a4dc1f236dcd0a87af955c $ guix size guix |head -2 store item total self /gnu/store/r96xq0064nqf43ygcr7z9lgb18vrd1wa-guix-1.4.0-18.4c94b9e 705.8 400.6 56.8% $ ./pre-inst-env guix size guix |head -2 store item total self /gnu/store/mcw1d2zy96is5ymjj903i3bi5a0qdwr5-guix-1.4.0-19.7ca9809 673.8 368.7 54.7% $ git log |head -1 commit 58be9a79e2862d5fa9842d73f498ce2e5442b9ce --8<---------------cut here---------------end--------------->8--- Ludo’.