Draft: Mount the nix store from hut in compute nodes #66

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rarias wants to merge 11 commits from shared-nix-store into master
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@ -20,7 +20,9 @@
# layer the disk nix store. The destination is still the nix store in
# /nix/store (confusing). We need rw access, as the daemon need to write the
# lock files to build derivations locally.
fileSystems."/nix/store" = {
# HACK: Use /nix//store to prevent the overlay to be mounted on boot, see:
# https://github.com/NixOS/nixpkgs/blob/17a46d09ac123d0da3a26855bf3af7db01f9c751/nixos/lib/utils.nix#L14
fileSystems."/nix//store" = {
device = "overlay";
fsType = "overlay";
options = [ "lowerdir=/mnt/hut-nix-store,upperdir=/nix/store,workdir=/mnt/nix-work" ];