Installing home-manager rebuilds nix from source (?)

Sorry, I’m new here and don’t really know what is going on. When I’m trying to instal home-manager it somehow wants to rebuild nix-2.3.16. I’m using macOS 12.0.1

nix-shell '<home-manager>' -A install                                                                                                                                                     ~

these derivations will be built:
  /nix/store/738wscp3qjdncwg7z62pds5c1dqsd78s-nix-2.3.16.drv
  /nix/store/cidy02dvjrgz7lr04bvyswpgzgrcjrpi-nixos-option.drv
  /nix/store/d9ppm8dx1gxgirr1j6352fb147mll1w7-home-manager.drv
building '/nix/store/738wscp3qjdncwg7z62pds5c1dqsd78s-nix-2.3.16.drv'...
unpacking sources
unpacking source archive /nix/store/5spkfnd3lbmic9g8j3mjl9pidb0616zm-nix-2.3.16.tar.xz
source root is nix-2.3.16
setting SOURCE_DATE_EPOCH to timestamp 1632274880 of file nix-2.3.16/src/libexpr/parser-tab.hh
patching sources
configuring
configure flags: --prefix=/nix/store/fdw3mm5l4jccn6giyscsbdq5ja103qf6-nix-2.3.16 --bindir=/nix/store/fdw3mm5l4jccn6giyscsbdq5ja103qf6-nix-2.3.16/bin --sbindir=/nix/store/fdw3mm5l4jccn6giyscsbdq5ja103qf6-nix-2.3.16/sbin --includedir=/nix/store/wchckb4rfq7nvqvly1fbmxarqka29xbp-nix-2.3.16-dev/include --oldincludedir=/nix/store/wchckb4rfq7nvqvly1fbmxarqka29xbp-nix-2.3.16-dev/include --mandir=/nix/store/va7vldmgd0gg1d858ibzc24rac8jm0ia-nix-2.3.16-man/share/man --infodir=/nix/store/fdw3mm5l4jccn6giyscsbdq5ja103qf6-nix-2.3.16/share/info --docdir=/nix/store/4ld1nakkssjzpk0rbi952jzx0s27vjsp-nix-2.3.16-doc/share/doc/nix --libdir=/nix/store/fdw3mm5l4jccn6giyscsbdq5ja103qf6-nix-2.3.16/lib --libexecdir=/nix/store/fdw3mm5l4jccn6giyscsbdq5ja103qf6-nix-2.3.16/libexec --localedir=/nix/store/fdw3mm5l4jccn6giyscsbdq5ja103qf6-nix-2.3.16/share/locale --with-store-dir=/nix/store --localstatedir=/nix/var --sysconfdir=/etc --enable-gc --disable-init-state --disable-seccomp-sandboxing
configure: WARNING: unrecognized options: --disable-init-state
checking for a sed that does not truncate output... /nix/store/kvrhk9qflzy5l58vq4j0485a8pyg3x72-gnused-4.8/bin/sed
checking build system type... x86_64-apple-darwin21.1.0
checking host system type... x86_64-apple-darwin21.1.0
checking for the canonical Nix system name... x86_64-darwin
checking for gcc... clang

After this, a lot of C++ code compilation is done and it takes forever. I have installed home-manager previously and it was done in seconds.
My guess is that it can’t find a prebuilt derivation(?) of home-manager online so it wants to rebuild it locally. nix-channel --list shows the following:

darwin https://github.com/LnL7/nix-darwin/archive/master.tar.gz
home-manager https://github.com/nix-community/home-manager/archive/master.tar.gz
nixpkgs https://nixos.org/channels/nixpkgs-unstable

Are you able to install things with Nix already?

Also in case there was some temporary issue finding the binary online, any change if you try now?