Try somethingto get the node in scope

.buildkite/bench-memory.sh

@@ -1,5 +1,5 @@
 #! /usr/bin/env nix-shell
-#! nix-shell -i bash -p coreutils gnugrep gawk time haskellPackages.hp2pretty buildkite-agent gnuplot
+#! nix-shell -i bash -p coreutils gnugrep gawk time haskellPackages.hp2pretty buildkite-agent
 
 set -euo pipefail
 
@@ -10,10 +10,12 @@ mkdir -p $TMPDIR
 
 echo "------------------------ Build ------------------------------------------"
 nix build -o bench-wallet
+# nix build # packages.x86_64-linux.cardano-node  -o node
 echo "------------------------Build done --------------------------------------"
 echo "------------------------ Run --------------------------------------------"
 wallet_exe="`pwd`/bench-wallet/bin/cardano-wallet"
 echo "wallet_exe: $wallet_exe"
+#node_exe="`pwd`/cardano-node/bin/cardano-node"
 node_exe="`which cardano-node`"
 echo "node_exe: $node_exe"
 node_db="`pwd`/lib/wallet-benchmarks/data/membench-snapshot.tgz"