tee /etc/nix/s3-credentials > /dev/null <<EOF

        cat > /etc/nix/s3-credentials <<EOF

        tee /root/.aws/credentials > /dev/null <<EOF

        cat > /root/.aws/credentials <<EOF

              tee /etc/nix/post-build-hook.sh > /dev/null <<'HOOK'

              cat > /etc/nix/post-build-hook.sh <<'HOOK'