# Nix package manager (multi-user daemon mode).
#
# Used purely for hermetic per-project dev shells via `nix develop` +
# direnv `use flake`. Not a replacement for paru/pacman, not home-manager,
# not NixOS — just a sandboxed second package manager that gives every
# project a reproducible toolchain pinned in its own flake.lock.
#
# Pairs with:
#   - systemd-units/system/nix.txt  (enables nix-daemon.socket)
#   - etc/nix/nix.conf              (flakes, trusted-users=@wheel, GC roots)
#   - dot_config/direnv/direnvrc    (loads nix-direnv; pinned via source_url)
#   - dot_config/nix/templates/     (flake templates: nix flake init -t ~/.config/nix/templates)
#
# nix-direnv itself is not packaged for Arch — it's loaded at runtime via
# direnv's source_url with a content hash, so no extra package needed.
nix