diff --git a/build-system/scripts/calculate_content_hash b/build-system/scripts/calculate_content_hash
index 0ecc960521e6..fcf79d121059 100755
--- a/build-system/scripts/calculate_content_hash
+++ b/build-system/scripts/calculate_content_hash
@@ -9,9 +9,10 @@ COMMIT_HASH=${2:-$COMMIT_HASH}
 REBUILD_PATTERNS=$(query_manifest rebuildPatterns $REPOSITORY)
 
 AWK_PATTERN=$(echo $REBUILD_PATTERNS | sed 's/ /|/g')
+cd "$(git rev-parse --show-toplevel)"
 # an example line is
 #   100644 da9ae2e020ea7fe3505488bbafb39adc7191559b 0       yarn-project/world-state/tsconfig.json
 # this format is beneficial as it grabs the hashes from git efficiently
 # we will next filter by our rebuild patterns 
 # then we pipe the hash portion of each file to git hash-object to produce our content hash
-git ls-tree -r HEAD | awk -v pattern="($AWK_PATTERN)" '$4 ~ pattern {print $3}' | git hash-object --stdin
+git ls-tree -r $COMMIT_HASH | awk -v pattern="($AWK_PATTERN)" '$4 ~ pattern {print $3}' | git hash-object --stdin
diff --git a/build-system/scripts/calculate_image_uri b/build-system/scripts/calculate_image_uri
new file mode 100755
index 000000000000..42bedecba2bf
--- /dev/null
+++ b/build-system/scripts/calculate_image_uri
@@ -0,0 +1,10 @@
+#!/bin/bash
+set -eu
+
+REPOSITORY=$1
+# Assume we might be calling this directly without build system in path
+export ROOT_PATH=$(git rev-parse --show-toplevel)
+export PATH="$PATH:$ROOT_PATH/build-system/scripts:$ROOT_PATH/build-system/bin"
+export LD_LIBRARY_PATH="$ROOT_PATH/build-system/lib"
+CONTENT_HASH=$(calculate_content_hash $REPOSITORY)
+echo "278380418400.dkr.ecr.us-east-2.amazonaws.com/$REPOSITORY:cache-$CONTENT_HASH"
diff --git a/build-system/scripts/cond_spot_run_build b/build-system/scripts/cond_spot_run_build
index 61f262307e5e..7ade4de52bde 100755
--- a/build-system/scripts/cond_spot_run_build
+++ b/build-system/scripts/cond_spot_run_build
@@ -9,7 +9,7 @@ shift
 DOCKERFILE=$(query_manifest dockerfile $REPOSITORY)
 
 CONTENT_HASH=$(calculate_content_hash $REPOSITORY)
-echo "Content hash: $CONTENT_HASH"
+echo "Content hash tag: cache-$CONTENT_HASH"
 
 cd $(query_manifest buildDir $REPOSITORY)
 
diff --git a/build-system/scripts/cond_spot_run_script b/build-system/scripts/cond_spot_run_script
index 154b70c8b684..d9e9aafb13c0 100755
--- a/build-system/scripts/cond_spot_run_script
+++ b/build-system/scripts/cond_spot_run_script
@@ -22,7 +22,7 @@ SUCCESS_TAG=$1
 shift
 
 CONTENT_HASH=$(calculate_content_hash $REPOSITORY)
-echo "Content hash: $CONTENT_HASH"
+echo "Content hash tag: cache-$CONTENT_HASH-$SUCCESS_TAG"
 
 if ! check_rebuild cache-$CONTENT_HASH-$SUCCESS_TAG $REPOSITORY; then
   init_submodules $REPOSITORY
diff --git a/build-system/scripts/remote_run_script b/build-system/scripts/remote_run_script
index c33d386f1f90..0e6417da1565 100755
--- a/build-system/scripts/remote_run_script
+++ b/build-system/scripts/remote_run_script
@@ -2,9 +2,8 @@
 set -eu
 
 IP=$1
-CONTENT_HASH=$2
-FULL_PATH=$3
-shift 3
+FULL_PATH=$2
+shift 2
 
 SSH_CONFIG_PATH=${SSH_CONFIG_PATH:-$BUILD_SYSTEM_PATH/remote/ssh_config}
 DIR_NAME=$(dirname $FULL_PATH)
@@ -12,6 +11,7 @@ SCRIPT_NAME=$(basename $FULL_PATH)
 
 # Copy all files in script directory to spot instance.
 scp -F $SSH_CONFIG_PATH $DIR_NAME/* $IP:.
+scp -rF $SSH_CONFIG_PATH $BUILD_SYSTEM_PATH $BUILD_SYSTEM_PATH/../.git $BUILD_SYSTEM_PATH/../build_manifest.json $IP:.
 
 # Run script on remote instance, passing environment variables.
-ssh -A -F $SSH_CONFIG_PATH $IP "CONTENT_HASH=$CONTENT_HASH COMMIT_HASH=$COMMIT_HASH COMMIT_TAG=$COMMIT_TAG JOB_NAME=$JOB_NAME GIT_REPOSITORY_URL=$GIT_REPOSITORY_URL DOCKERHUB_PASSWORD=$DOCKERHUB_PASSWORD ECR_DEPLOY_URL=$ECR_DEPLOY_URL ECR_URL=$ECR_URL ./$SCRIPT_NAME $@"
+ssh -A -F $SSH_CONFIG_PATH $IP "COMMIT_HASH=$COMMIT_HASH COMMIT_TAG=$COMMIT_TAG JOB_NAME=$JOB_NAME GIT_REPOSITORY_URL=$GIT_REPOSITORY_URL DOCKERHUB_PASSWORD=$DOCKERHUB_PASSWORD ECR_DEPLOY_URL=$ECR_DEPLOY_URL ECR_URL=$ECR_URL ./$SCRIPT_NAME $@"
diff --git a/build-system/scripts/spot_run_script b/build-system/scripts/spot_run_script
index 63f16928c857..ddf4acebc43e 100755
--- a/build-system/scripts/spot_run_script
+++ b/build-system/scripts/spot_run_script
@@ -23,7 +23,7 @@ IP=$(request_spot $CONTENT_HASH:$JOB_NAME $SPEC)
 
 # Run script remotely on spot instance, capturing success or failure.
 set +e
-remote_run_script $IP $CONTENT_HASH $@
+remote_run_script $IP $@
 CODE=$?
 
 # Shutdown spot.
diff --git a/circuits/cpp/barretenberg/cpp/scripts/bb-tests.sh b/circuits/cpp/barretenberg/cpp/scripts/bb-tests.sh
index 235aa111ff4c..4037b3ad365f 100755
--- a/circuits/cpp/barretenberg/cpp/scripts/bb-tests.sh
+++ b/circuits/cpp/barretenberg/cpp/scripts/bb-tests.sh
@@ -6,7 +6,7 @@ set -eu
 $(aws ecr get-login --region us-east-2 --no-include-email) 2> /dev/null
 REPOSITORY=barretenberg-x86_64-linux-clang-assert
 # use the image rebuild patterns to compute a content hash, use this to get a URI
-IMAGE_URI="278380418400.dkr.ecr.us-east-2.amazonaws.com/$REPOSITORY:cache-$CONTENT_HASH"
+IMAGE_URI=$($(git rev-parse --show-toplevel)/build-system/scripts/calculate_image_uri $REPOSITORY)
 docker pull $IMAGE_URI
 
 TESTS=(
diff --git a/circuits/cpp/barretenberg/cpp/scripts/bin-test.sh b/circuits/cpp/barretenberg/cpp/scripts/bin-test.sh
index b06c26036bac..6370dbebb5f4 100755
--- a/circuits/cpp/barretenberg/cpp/scripts/bin-test.sh
+++ b/circuits/cpp/barretenberg/cpp/scripts/bin-test.sh
@@ -4,7 +4,8 @@ set -eu
 
 $(aws ecr get-login --region us-east-2 --no-include-email) 2> /dev/null
 REPOSITORY=barretenberg-x86_64-linux-clang-assert
-IMAGE_URI="278380418400.dkr.ecr.us-east-2.amazonaws.com/$REPOSITORY:cache-$CONTENT_HASH"
+IMAGE_URI=$($(git rev-parse --show-toplevel)/build-system/scripts/calculate_image_uri $REPOSITORY)
+
 docker pull $IMAGE_URI
 
 docker run --rm -t $IMAGE_URI /bin/sh -c "\
diff --git a/circuits/cpp/barretenberg/cpp/scripts/run_aztec_circuits_tests b/circuits/cpp/barretenberg/cpp/scripts/run_aztec_circuits_tests
index d67176f098fa..bab5c7f22073 100755
--- a/circuits/cpp/barretenberg/cpp/scripts/run_aztec_circuits_tests
+++ b/circuits/cpp/barretenberg/cpp/scripts/run_aztec_circuits_tests
@@ -20,7 +20,7 @@ shift # to aztec's circuits `run_tests_local`
 $(aws ecr get-login --region us-east-2 --no-include-email) 2> /dev/null
 
 REPOSITORY="barretenberg-circuits-${ARCH}-linux-clang-builder-runner"
-IMAGE_URI="278380418400.dkr.ecr.us-east-2.amazonaws.com/$REPOSITORY:cache-$CONTENT_HASH"
+IMAGE_URI=$($(git rev-parse --show-toplevel)/build-system/scripts/calculate_image_uri $REPOSITORY)
 docker pull $IMAGE_URI
 
 if [ "$ARCH" != "wasm" ]; then
diff --git a/circuits/cpp/barretenberg/cpp/scripts/run_tests b/circuits/cpp/barretenberg/cpp/scripts/run_tests
index 965307ff5a59..f6ccd5a43594 100755
--- a/circuits/cpp/barretenberg/cpp/scripts/run_tests
+++ b/circuits/cpp/barretenberg/cpp/scripts/run_tests
@@ -14,7 +14,7 @@ $(aws ecr get-login --region us-east-2 --no-include-email) 2> /dev/null
 
 # use the image rebuild patterns to compute a content hash, use this to get a URI
 REPOSITORY=barretenberg-x86_64-linux-clang-assert
-IMAGE_URI="278380418400.dkr.ecr.us-east-2.amazonaws.com/$REPOSITORY:cache-$CONTENT_HASH"
+IMAGE_URI=$($(git rev-parse --show-toplevel)/build-system/scripts/calculate_image_uri $REPOSITORY)
 docker pull $IMAGE_URI
 
 if [ -f "$TESTS" ]; then
diff --git a/circuits/cpp/barretenberg/ts/scripts/run_tests b/circuits/cpp/barretenberg/ts/scripts/run_tests
index cd417d0724a7..7a97ff6adefc 100755
--- a/circuits/cpp/barretenberg/ts/scripts/run_tests
+++ b/circuits/cpp/barretenberg/ts/scripts/run_tests
@@ -2,5 +2,7 @@
 set -e
 
 $(aws ecr get-login --region us-east-2 --no-include-email) 2> /dev/null
-IMAGE_URI=278380418400.dkr.ecr.us-east-2.amazonaws.com/bb.js:cache-$CONTENT_HASH
+
+REPOSITORY=bb.js
+IMAGE_URI=$($(git rev-parse --show-toplevel)/build-system/scripts/calculate_image_uri $REPOSITORY)
 docker run --rm $IMAGE_URI
diff --git a/circuits/cpp/scripts/run_tests b/circuits/cpp/scripts/run_tests
index b3fbc43f4592..b92241ad44ef 100755
--- a/circuits/cpp/scripts/run_tests
+++ b/circuits/cpp/scripts/run_tests
@@ -26,7 +26,7 @@ shift # arg1 (num transcripts) is not forwarded to `run_tests_local`
 $(aws ecr get-login --region us-east-2 --no-include-email) 2> /dev/null
 
 REPOSITORY="circuits-$ARCH-linux-clang-assert"
-IMAGE_URI="278380418400.dkr.ecr.us-east-2.amazonaws.com/$REPOSITORY:cache-$CONTENT_HASH"
+IMAGE_URI=$($(git rev-parse --show-toplevel)/build-system/scripts/calculate_image_uri $REPOSITORY)
 docker pull $IMAGE_URI
 
 # run tests in docker image
diff --git a/yarn-project/canary/scripts/run_tests b/yarn-project/canary/scripts/run_tests
index dac0f0bd921e..44c0b2e9dcac 100755
--- a/yarn-project/canary/scripts/run_tests
+++ b/yarn-project/canary/scripts/run_tests
@@ -14,7 +14,7 @@ fi
 
 $(aws ecr get-login --region us-east-2 --no-include-email) 2> /dev/null
 
-IMAGE_URI="278380418400.dkr.ecr.us-east-2.amazonaws.com/$IMAGE:cache-$CONTENT_HASH"
+IMAGE_URI=$($(git rev-parse --show-toplevel)/build-system/scripts/calculate_image_uri $IMAGE)
 docker pull $IMAGE_URI
 docker tag $IMAGE_URI aztecprotocol/canary:latest
 
diff --git a/yarn-project/end-to-end/scripts/cond_run_script b/yarn-project/end-to-end/scripts/cond_run_script
index e8159655bf20..88bf7d5c4b6d 100755
--- a/yarn-project/end-to-end/scripts/cond_run_script
+++ b/yarn-project/end-to-end/scripts/cond_run_script
@@ -25,10 +25,10 @@ SCRIPT_TO_RUN=$1
 shift
 
 CONTENT_HASH=$(calculate_content_hash $REPOSITORY)
-echo "Content hash: $CONTENT_HASH"
+echo "Content hash tag: cache-$CONTENT_HASH-$SUCCESS_TAG"
 echo "Script to run is $SCRIPT_TO_RUN $@"
 
 if ! check_rebuild cache-$CONTENT_HASH-$SUCCESS_TAG $REPOSITORY; then
-  CONTENT_HASH="$CONTENT_HASH" "$SCRIPT_TO_RUN" "$@"
+  "$SCRIPT_TO_RUN" "$@"
   tag_remote_image $REPOSITORY cache-$CONTENT_HASH cache-$CONTENT_HASH-$SUCCESS_TAG
 fi
diff --git a/yarn-project/end-to-end/scripts/run_tests b/yarn-project/end-to-end/scripts/run_tests
index fad024b1eb2d..a41849e576fb 100755
--- a/yarn-project/end-to-end/scripts/run_tests
+++ b/yarn-project/end-to-end/scripts/run_tests
@@ -8,9 +8,11 @@ export COMPOSE_FILE=${2:-docker-compose.yml}
 
 $(aws ecr get-login --region us-east-2 --no-include-email) 2> /dev/null
 
+BS=$(git rev-parse --show-toplevel)/build-system/scripts
+
 for REPO in aztec.js end-to-end aztec-sandbox; do
-  docker pull 278380418400.dkr.ecr.us-east-2.amazonaws.com/$REPO:cache-$CONTENT_HASH
-  docker tag 278380418400.dkr.ecr.us-east-2.amazonaws.com/$REPO:cache-$CONTENT_HASH aztecprotocol/$REPO:latest
+  docker pull $($BS/calculate_image_uri $REPO)
+  docker tag $($BS/calculate_image_uri $REPO) aztecprotocol/$REPO:latest
 done
 
 docker-compose rm -f