diff --git a/app/data/compose/docker-compose-fixturenet-eth.yml b/app/data/compose/docker-compose-fixturenet-eth.yml
index 2eaad084..508543e4 100644
--- a/app/data/compose/docker-compose-fixturenet-eth.yml
+++ b/app/data/compose/docker-compose-fixturenet-eth.yml
@@ -58,12 +58,6 @@ services:
     environment:
       RUN_BOOTNODE: "true"
     image: cerc/fixturenet-eth-lighthouse:local
-    healthcheck:
-      test: ["CMD", "/scripts/status-internal.sh"]
-      interval: 10s
-      timeout: 100s
-      retries: 3
-      start_period: 15s
 
   fixturenet-eth-lighthouse-1:
     hostname: fixturenet-eth-lighthouse-1
diff --git a/app/data/compose/docker-compose-fixturenet-optimism.yml b/app/data/compose/docker-compose-fixturenet-optimism.yml
index 6dcde5c9..ee7d3cde 100644
--- a/app/data/compose/docker-compose-fixturenet-optimism.yml
+++ b/app/data/compose/docker-compose-fixturenet-optimism.yml
@@ -1,40 +1,46 @@
 version: '3.7'
 
 services:
+  # Generates and funds the accounts required when setting up the L2 chain (outputs to volume l2_accounts)
+  # Creates / updates the configuration for L1 contracts deployment
+  # Deploys the L1 smart contracts (outputs to volume l1_deployment)
   fixturenet-optimism-contracts:
     hostname: fixturenet-optimism-contracts
     image: cerc/optimism-contracts:local
-    depends_on:
-      fixturenet-eth-geth-1:
-        condition: service_healthy
-      fixturenet-eth-bootnode-lighthouse:
-        condition: service_healthy
-    environment:
-      CHAIN_ID: 1212
-      L1_RPC: "http://fixturenet-eth-geth-1:8545"
-    command: "./run.sh"
+    env_file:
+      - ../config/fixturenet-optimism/l1-params.env
+    # Waits for L1 endpoint to be up before running the script
+    command: |
+      "./wait-for-it.sh -h $${L1_HOST} -p $${L1_PORT} -s -t 60 -- ./run.sh"
     volumes:
-      - ../config/fixturenet-optimism/optimism-contracts/rekey-json.ts:/app/packages/contracts-bedrock/tasks/rekey-json.ts
-      - ../config/fixturenet-optimism/optimism-contracts/send-balance.ts:/app/packages/contracts-bedrock/tasks/send-balance.ts
+      - ../config/wait-for-it.sh:/app/packages/contracts-bedrock/wait-for-it.sh
+      - ../container-build/cerc-optimism-contracts/hardhat-tasks/rekey-json.ts:/app/packages/contracts-bedrock/tasks/rekey-json.ts
+      - ../container-build/cerc-optimism-contracts/hardhat-tasks/send-balance.ts:/app/packages/contracts-bedrock/tasks/send-balance.ts
       - ../config/fixturenet-optimism/optimism-contracts/update-config.js:/app/packages/contracts-bedrock/update-config.js
       - ../config/fixturenet-optimism/optimism-contracts/run.sh:/app/packages/contracts-bedrock/run.sh
       - fixturenet_geth_accounts:/geth-accounts:ro
       - l2_accounts:/l2-accounts
       - l1_deployment:/app/packages/contracts-bedrock
+    extra_hosts:
+    - "host.docker.internal:host-gateway"
 
+  # Generates the config files required for L2 (outputs to volume op_node_data)
   op-node-l2-config-gen:
     image: cerc/optimism-op-node:local
     depends_on:
       fixturenet-optimism-contracts:
         condition: service_completed_successfully
-    environment:
-      L1_RPC: "http://fixturenet-eth-geth-1:8545"
+    env_file:
+      - ../config/fixturenet-optimism/l1-params.env
     volumes:
       - ../config/fixturenet-optimism/generate-l2-config.sh:/app/generate-l2-config.sh
       - l1_deployment:/contracts-bedrock:ro
       - op_node_data:/app
     command: ["sh", "/app/generate-l2-config.sh"]
+    extra_hosts:
+    - "host.docker.internal:host-gateway"
 
+  # Initializes and runs the L2 execution client
   op-geth:
     image: cerc/optimism-l2geth:local
     depends_on:
@@ -55,9 +61,10 @@ services:
       retries: 10
       start_period: 10s
 
+  # Runs the L2 consensus client (Sequencer node)
   op-node:
-    environment:
-      L1_RPC: "http://fixturenet-eth-geth-1:8545"
+    env_file:
+      - ../config/fixturenet-optimism/l1-params.env
     depends_on:
       op-geth:
         condition: service_healthy
@@ -75,25 +82,32 @@ services:
       timeout: 10s
       retries: 10
       start_period: 10s
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
 
+  # Runs the batcher (takes transactions from the Sequencer and publishes them to L1)
   op-batcher:
-    environment:
-      L1_RPC: "http://fixturenet-eth-geth-1:8545"
+    env_file:
+      - ../config/fixturenet-optimism/l1-params.env
     depends_on:
-      fixturenet-eth-geth-1:
-        condition: service_healthy
       op-node:
         condition: service_healthy
       op-geth:
         condition: service_healthy
     image: cerc/optimism-op-batcher:local
     volumes:
+      - ../config/wait-for-it.sh:/wait-for-it.sh
       - ../config/fixturenet-optimism/run-op-batcher.sh:/run-op-batcher.sh
       - l2_accounts:/l2-accounts:ro
-    entrypoint: "sh"
-    command: "/run-op-batcher.sh"
+    entrypoint: ["sh", "-c"]
+    # Waits for L1 endpoint to be up before running the batcher
+    command: |
+      "/wait-for-it.sh -h $${L1_HOST} -p $${L1_PORT} -s -t 60 -- /run-op-batcher.sh"
+    extra_hosts:
+    - "host.docker.internal:host-gateway"
 
 volumes:
-  op_node_data:
-  l2_accounts:
+  fixturenet_geth_accounts:
   l1_deployment:
+  l2_accounts:
+  op_node_data:
diff --git a/app/data/compose/docker-compose-watcher-mobymask-v2.yml b/app/data/compose/docker-compose-watcher-mobymask-v2.yml
index ed5c203a..8478a4d9 100644
--- a/app/data/compose/docker-compose-watcher-mobymask-v2.yml
+++ b/app/data/compose/docker-compose-watcher-mobymask-v2.yml
@@ -33,12 +33,12 @@ services:
     # TODO: Configure env file for ETH RPC URL & private key
     environment:
       - ENV=PROD
-    command: ["sh", "./deploy-invite.sh"]
+    command: ["sh", "./deploy-and-generate-invite.sh"]
     volumes:
-      # TODO: add a script to set rpc endpoint from env
+      # TODO: add a script to set RPC endpoint from env
       #       add manually if running seperately
       - ../config/watcher-mobymask-v2/secrets-template.json:/app/packages/server/secrets-template.json
-      - ../config/watcher-mobymask-v2/deploy-invite.sh:/app/packages/server/deploy-invite.sh
+      - ../config/watcher-mobymask-v2/deploy-and-generate-invite.sh:/app/packages/server/deploy-and-generate-invite.sh
       - moby_data_server:/app/packages/server
       - fixturenet_geth_accounts:/geth-accounts:ro
     healthcheck:
@@ -49,7 +49,7 @@ services:
       start_period: 10s
 
   mobymask-watcher-server:
-    # TODO: pass optimism rpc endpoint
+    # TODO: pass optimism RPC endpoint
     restart: unless-stopped
     depends_on:
       mobymask-watcher-db:
@@ -59,7 +59,7 @@ services:
     image: cerc/watcher-mobymask-v2:local
     command: ["sh", "server-start.sh"]
     volumes:
-      # TODO: add a script to set rpc endpoint from env
+      # TODO: add a script to set RPC endpoint from env
       #       add manually if running seperately
       - ../config/watcher-mobymask-v2/watcher-config-template.toml:/app/packages/mobymask-v2-watcher/environments/watcher-config-template.toml
       - ../config/watcher-mobymask-v2/peer.env:/app/packages/peer/.env
diff --git a/app/data/config/fixturenet-optimism/generate-l2-config.sh b/app/data/config/fixturenet-optimism/generate-l2-config.sh
index 25ed2378..0ec60a08 100755
--- a/app/data/config/fixturenet-optimism/generate-l2-config.sh
+++ b/app/data/config/fixturenet-optimism/generate-l2-config.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 set -e
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+  set -x
+fi
 
 op-node genesis l2 \
   --deploy-config /contracts-bedrock/deploy-config/getting-started.json \
diff --git a/app/data/config/fixturenet-optimism/l1-params.env b/app/data/config/fixturenet-optimism/l1-params.env
new file mode 100644
index 00000000..31876523
--- /dev/null
+++ b/app/data/config/fixturenet-optimism/l1-params.env
@@ -0,0 +1,9 @@
+# Change if pointing to an external L1 endpoint
+L1_RPC="http://fixturenet-eth-geth-1:8545"
+L1_CHAIN_ID=1212
+L1_HOST="fixturenet-eth-geth-1"
+L1_PORT=8545
+L1_ADDRESS=
+L1_PRIV_KEY=
+L1_ADDRESS_2=
+L1_PRIV_KEY_2=
diff --git a/app/data/config/fixturenet-optimism/optimism-contracts/run.sh b/app/data/config/fixturenet-optimism/optimism-contracts/run.sh
index 473b8743..e10c45e1 100755
--- a/app/data/config/fixturenet-optimism/optimism-contracts/run.sh
+++ b/app/data/config/fixturenet-optimism/optimism-contracts/run.sh
@@ -1,5 +1,8 @@
 #!/bin/bash
 set -e
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+  set -x
+fi
 
 # TODO Support restarts; fixturenet-eth-geth currently starts fresh on a restart
 # Exit if a deployment already exists (on restarts)
@@ -8,12 +11,14 @@ set -e
 #     exit 0
 # fi
 
+echo "Using L1 RPC endpoint ${L1_RPC}"
+
 # Append tasks/index.ts file
 echo "import './rekey-json'" >> tasks/index.ts
 echo "import './send-balance'" >> tasks/index.ts
 
 # Update the chainId in the hardhat config
-sed -i "/getting-started/ {n; s/.*chainId.*/      chainId: $CHAIN_ID,/}" hardhat.config.ts
+sed -i "/getting-started/ {n; s/.*chainId.*/      chainId: $L1_CHAIN_ID,/}" hardhat.config.ts
 
 # Generate the L2 account addresses
 yarn hardhat rekey-json --output /l2-accounts/keys.json
@@ -29,11 +34,27 @@ BATCHER_ADDRESS=$(echo "$KEYS_JSON" | jq -r '.Batcher.address')
 SEQUENCER_ADDRESS=$(echo "$KEYS_JSON" | jq -r '.Sequencer.address')
 
 # Read the private key of L1 accounts
-# TODO: Take from env if /geth-accounts volume doesn't exist to allow using separately running L1
-L1_ADDRESS=$(head -n 1 /geth-accounts/accounts.csv | cut -d ',' -f 2)
-L1_PRIV_KEY=$(head -n 1 /geth-accounts/accounts.csv | cut -d ',' -f 3)
-L1_ADDRESS_2=$(awk -F, 'NR==2{print $(NF-1)}' /geth-accounts/accounts.csv)
-L1_PRIV_KEY_2=$(awk -F, 'NR==2{print $NF}' /geth-accounts/accounts.csv)
+if [ -f /geth-accounts/accounts.csv ]; then
+  echo "Using L1 account credentials from the mounted volume"
+  L1_ADDRESS=$(head -n 1 /geth-accounts/accounts.csv | cut -d ',' -f 2)
+  L1_PRIV_KEY=$(head -n 1 /geth-accounts/accounts.csv | cut -d ',' -f 3)
+  L1_ADDRESS_2=$(awk -F, 'NR==2{print $(NF-1)}' /geth-accounts/accounts.csv)
+  L1_PRIV_KEY_2=$(awk -F, 'NR==2{print $NF}' /geth-accounts/accounts.csv)
+else
+  echo "Using L1 account credentials from env"
+fi
+
+# Select a finalized L1 block as the starting point for roll ups
+until FINALIZED_BLOCK=$(cast block finalized --rpc-url "$L1_RPC"); do
+    echo "Waiting for a finalized L1 block to exist, retrying after 10s"
+    sleep 10
+done
+
+L1_BLOCKNUMBER=$(echo "$FINALIZED_BLOCK" | awk '/number/{print $2}')
+L1_BLOCKHASH=$(echo "$FINALIZED_BLOCK" | awk '/hash/{print $2}')
+L1_BLOCKTIMESTAMP=$(echo "$FINALIZED_BLOCK" | awk '/timestamp/{print $2}')
+
+echo "Selected L1 block ${L1_BLOCKNUMBER} as the starting block for roll ups"
 
 # Send balances to the above L2 addresses
 yarn hardhat send-balance --to "${ADMIN_ADDRESS}" --amount 2 --private-key "${L1_PRIV_KEY}" --network getting-started
@@ -42,19 +63,9 @@ yarn hardhat send-balance --to "${BATCHER_ADDRESS}" --amount 1000 --private-key
 
 echo "Balances sent to L2 accounts"
 
-# Select a finalized L1 block as the starting point for roll ups
-# TODO Use web3.js to get the latest finalized block
-until CAST_OUTPUT=$(cast block finalized --rpc-url "$L1_RPC"); do
-    echo "Waiting for a finalized L1 block to exist, retrying after 10s"
-    sleep 10
-done
-
-L1_BLOCKHASH=$(echo "$CAST_OUTPUT" | awk '/hash/{print $2}')
-L1_BLOCKTIMESTAMP=$(echo "$CAST_OUTPUT" | awk '/timestamp/{print $2}')
-
 # Update the deployment config
 sed -i 's/"l2OutputOracleStartingTimestamp": TIMESTAMP/"l2OutputOracleStartingTimestamp": '"$L1_BLOCKTIMESTAMP"'/g' deploy-config/getting-started.json
-jq --arg chainid "$CHAIN_ID" '.l1ChainID = ($chainid | tonumber)' deploy-config/getting-started.json > tmp.json && mv tmp.json deploy-config/getting-started.json
+jq --arg chainid "$L1_CHAIN_ID" '.l1ChainID = ($chainid | tonumber)' deploy-config/getting-started.json > tmp.json && mv tmp.json deploy-config/getting-started.json
 
 node update-config.js deploy-config/getting-started.json "$ADMIN_ADDRESS" "$PROPOSER_ADDRESS" "$BATCHER_ADDRESS" "$SEQUENCER_ADDRESS" "$L1_BLOCKHASH"
 
diff --git a/app/data/config/fixturenet-optimism/run-op-batcher.sh b/app/data/config/fixturenet-optimism/run-op-batcher.sh
index 38ac3ab9..3cab3e94 100755
--- a/app/data/config/fixturenet-optimism/run-op-batcher.sh
+++ b/app/data/config/fixturenet-optimism/run-op-batcher.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 set -e
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+  set -x
+fi
 
 # Get BACTHER_KEY from keys.json
 BATCHER_KEY=$(jq -r '.Batcher.privateKey' /l2-accounts/keys.json | tr -d '"')
diff --git a/app/data/config/fixturenet-optimism/run-op-geth.sh b/app/data/config/fixturenet-optimism/run-op-geth.sh
index 1b4e2b0f..cb180065 100755
--- a/app/data/config/fixturenet-optimism/run-op-geth.sh
+++ b/app/data/config/fixturenet-optimism/run-op-geth.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 set -e
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+  set -x
+fi
 
 mkdir datadir
 
diff --git a/app/data/config/fixturenet-optimism/run-op-node.sh b/app/data/config/fixturenet-optimism/run-op-node.sh
index 3be417d0..f495aeef 100755
--- a/app/data/config/fixturenet-optimism/run-op-node.sh
+++ b/app/data/config/fixturenet-optimism/run-op-node.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 set -e
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+  set -x
+fi
 
 # Get SEQUENCER KEY from keys.json
 SEQUENCER_KEY=$(jq -r '.Sequencer.privateKey' /l2-accounts/keys.json | tr -d '"')
diff --git a/app/data/config/wait-for-it.sh b/app/data/config/wait-for-it.sh
new file mode 100755
index 00000000..d990e0d3
--- /dev/null
+++ b/app/data/config/wait-for-it.sh
@@ -0,0 +1,182 @@
+#!/usr/bin/env bash
+# Use this script to test if a given TCP host/port are available
+
+WAITFORIT_cmdname=${0##*/}
+
+echoerr() { if [[ $WAITFORIT_QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
+
+usage()
+{
+    cat << USAGE >&2
+Usage:
+    $WAITFORIT_cmdname host:port [-s] [-t timeout] [-- command args]
+    -h HOST | --host=HOST       Host or IP under test
+    -p PORT | --port=PORT       TCP port under test
+                                Alternatively, you specify the host and port as host:port
+    -s | --strict               Only execute subcommand if the test succeeds
+    -q | --quiet                Don't output any status messages
+    -t TIMEOUT | --timeout=TIMEOUT
+                                Timeout in seconds, zero for no timeout
+    -- COMMAND ARGS             Execute command with args after the test finishes
+USAGE
+    exit 1
+}
+
+wait_for()
+{
+    if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
+        echoerr "$WAITFORIT_cmdname: waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
+    else
+        echoerr "$WAITFORIT_cmdname: waiting for $WAITFORIT_HOST:$WAITFORIT_PORT without a timeout"
+    fi
+    WAITFORIT_start_ts=$(date +%s)
+    while :
+    do
+        if [[ $WAITFORIT_ISBUSY -eq 1 ]]; then
+            nc -z $WAITFORIT_HOST $WAITFORIT_PORT
+            WAITFORIT_result=$?
+        else
+            (echo -n > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
+            WAITFORIT_result=$?
+        fi
+        if [[ $WAITFORIT_result -eq 0 ]]; then
+            WAITFORIT_end_ts=$(date +%s)
+            echoerr "$WAITFORIT_cmdname: $WAITFORIT_HOST:$WAITFORIT_PORT is available after $((WAITFORIT_end_ts - WAITFORIT_start_ts)) seconds"
+            break
+        fi
+        sleep 1
+    done
+    return $WAITFORIT_result
+}
+
+wait_for_wrapper()
+{
+    # In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
+    if [[ $WAITFORIT_QUIET -eq 1 ]]; then
+        timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --quiet --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
+    else
+        timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
+    fi
+    WAITFORIT_PID=$!
+    trap "kill -INT -$WAITFORIT_PID" INT
+    wait $WAITFORIT_PID
+    WAITFORIT_RESULT=$?
+    if [[ $WAITFORIT_RESULT -ne 0 ]]; then
+        echoerr "$WAITFORIT_cmdname: timeout occurred after waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
+    fi
+    return $WAITFORIT_RESULT
+}
+
+# process arguments
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        *:* )
+        WAITFORIT_hostport=(${1//:/ })
+        WAITFORIT_HOST=${WAITFORIT_hostport[0]}
+        WAITFORIT_PORT=${WAITFORIT_hostport[1]}
+        shift 1
+        ;;
+        --child)
+        WAITFORIT_CHILD=1
+        shift 1
+        ;;
+        -q | --quiet)
+        WAITFORIT_QUIET=1
+        shift 1
+        ;;
+        -s | --strict)
+        WAITFORIT_STRICT=1
+        shift 1
+        ;;
+        -h)
+        WAITFORIT_HOST="$2"
+        if [[ $WAITFORIT_HOST == "" ]]; then break; fi
+        shift 2
+        ;;
+        --host=*)
+        WAITFORIT_HOST="${1#*=}"
+        shift 1
+        ;;
+        -p)
+        WAITFORIT_PORT="$2"
+        if [[ $WAITFORIT_PORT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --port=*)
+        WAITFORIT_PORT="${1#*=}"
+        shift 1
+        ;;
+        -t)
+        WAITFORIT_TIMEOUT="$2"
+        if [[ $WAITFORIT_TIMEOUT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --timeout=*)
+        WAITFORIT_TIMEOUT="${1#*=}"
+        shift 1
+        ;;
+        --)
+        shift
+        WAITFORIT_CLI=("$@")
+        break
+        ;;
+        --help)
+        usage
+        ;;
+        *)
+        echoerr "Unknown argument: $1"
+        usage
+        ;;
+    esac
+done
+
+if [[ "$WAITFORIT_HOST" == "" || "$WAITFORIT_PORT" == "" ]]; then
+    echoerr "Error: you need to provide a host and port to test."
+    usage
+fi
+
+WAITFORIT_TIMEOUT=${WAITFORIT_TIMEOUT:-15}
+WAITFORIT_STRICT=${WAITFORIT_STRICT:-0}
+WAITFORIT_CHILD=${WAITFORIT_CHILD:-0}
+WAITFORIT_QUIET=${WAITFORIT_QUIET:-0}
+
+# Check to see if timeout is from busybox?
+WAITFORIT_TIMEOUT_PATH=$(type -p timeout)
+WAITFORIT_TIMEOUT_PATH=$(realpath $WAITFORIT_TIMEOUT_PATH 2>/dev/null || readlink -f $WAITFORIT_TIMEOUT_PATH)
+
+WAITFORIT_BUSYTIMEFLAG=""
+if [[ $WAITFORIT_TIMEOUT_PATH =~ "busybox" ]]; then
+    WAITFORIT_ISBUSY=1
+    # Check if busybox timeout uses -t flag
+    # (recent Alpine versions don't support -t anymore)
+    if timeout &>/dev/stdout | grep -q -e '-t '; then
+        WAITFORIT_BUSYTIMEFLAG="-t"
+    fi
+else
+    WAITFORIT_ISBUSY=0
+fi
+
+if [[ $WAITFORIT_CHILD -gt 0 ]]; then
+    wait_for
+    WAITFORIT_RESULT=$?
+    exit $WAITFORIT_RESULT
+else
+    if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
+        wait_for_wrapper
+        WAITFORIT_RESULT=$?
+    else
+        wait_for
+        WAITFORIT_RESULT=$?
+    fi
+fi
+
+if [[ $WAITFORIT_CLI != "" ]]; then
+    if [[ $WAITFORIT_RESULT -ne 0 && $WAITFORIT_STRICT -eq 1 ]]; then
+        echoerr "$WAITFORIT_cmdname: strict mode, refusing to execute subprocess"
+        exit $WAITFORIT_RESULT
+    fi
+    exec "${WAITFORIT_CLI[@]}"
+else
+    exit $WAITFORIT_RESULT
+fi
diff --git a/app/data/config/watcher-mobymask-v2/deploy-invite.sh b/app/data/config/watcher-mobymask-v2/deploy-and-generate-invite.sh
similarity index 100%
rename from app/data/config/watcher-mobymask-v2/deploy-invite.sh
rename to app/data/config/watcher-mobymask-v2/deploy-and-generate-invite.sh
diff --git a/app/data/container-build/cerc-optimism-contracts/Dockerfile b/app/data/container-build/cerc-optimism-contracts/Dockerfile
index 4f244bab..cdc98b08 100644
--- a/app/data/container-build/cerc-optimism-contracts/Dockerfile
+++ b/app/data/container-build/cerc-optimism-contracts/Dockerfile
@@ -1,4 +1,3 @@
-# TODO: Use a node alpine image
 FROM cerc/foundry:local
 
 # Install node (local foundry is a debian based image)
diff --git a/app/data/config/fixturenet-optimism/optimism-contracts/rekey-json.ts b/app/data/container-build/cerc-optimism-contracts/hardhat-tasks/rekey-json.ts
similarity index 100%
rename from app/data/config/fixturenet-optimism/optimism-contracts/rekey-json.ts
rename to app/data/container-build/cerc-optimism-contracts/hardhat-tasks/rekey-json.ts
diff --git a/app/data/config/fixturenet-optimism/optimism-contracts/send-balance.ts b/app/data/container-build/cerc-optimism-contracts/hardhat-tasks/send-balance.ts
similarity index 100%
rename from app/data/config/fixturenet-optimism/optimism-contracts/send-balance.ts
rename to app/data/container-build/cerc-optimism-contracts/hardhat-tasks/send-balance.ts
diff --git a/app/data/container-build/cerc-optimism-op-batcher/Dockerfile b/app/data/container-build/cerc-optimism-op-batcher/Dockerfile
index 542a075f..23d6b629 100644
--- a/app/data/container-build/cerc-optimism-op-batcher/Dockerfile
+++ b/app/data/container-build/cerc-optimism-op-batcher/Dockerfile
@@ -25,7 +25,7 @@ RUN make op-batcher VERSION="$VERSION" GOOS=$TARGETOS GOARCH=$TARGETARCH
 
 FROM alpine:3.15
 
-RUN apk add --no-cache jq
+RUN apk add --no-cache jq bash
 
 COPY --from=builder /app/op-batcher/bin/op-batcher /usr/local/bin
 
diff --git a/app/data/stacks/fixturenet-optimism/README.md b/app/data/stacks/fixturenet-optimism/README.md
index 5b9dd51b..2f13ec88 100644
--- a/app/data/stacks/fixturenet-optimism/README.md
+++ b/app/data/stacks/fixturenet-optimism/README.md
@@ -8,12 +8,15 @@ Clone required repositories:
 
 ```bash
 laconic-so --stack fixturenet-optimism setup-repositories
+
+# Exclude cerc-io/go-ethereum repository if running L1 separately
+laconic-so --stack fixturenet-optimism setup-repositories --exclude cerc-io/go-ethereum
 ```
 
 Checkout to the required versions and branches in repos:
 
 ```bash
-# optimism
+# Optimism
 cd ~/cerc/optimism
 git checkout @eth-optimism/sdk@0.0.0-20230329025055
 ```
@@ -22,6 +25,9 @@ Build the container images:
 
 ```bash
 laconic-so --stack fixturenet-optimism build-containers
+
+# Only build containers required for L2 if running L1 separately
+laconic-so --stack fixturenet-optimism build-containers --include cerc/foundry,cerc/optimism-contracts,cerc/optimism-op-node,cerc/optimism-l2geth,cerc/optimism-op-batcher
 ```
 
 This should create the required docker images in the local image registry:
@@ -37,19 +43,36 @@ This should create the required docker images in the local image registry:
 
 ## Deploy
 
+(Optional) Update the [l1-params.env](../../config/fixturenet-optimism/l1-params.env) file with L1 endpoint (`L1_RPC`, `L1_HOST` and `L1_PORT`) and other params if running L1 separately
+
+* NOTE:
+  * Stack Orchestrator needs to be run in [`dev`](/docs/CONTRIBUTING.md#install-developer-mode) mode to be able to edit the env file
+  * If L1 is running on the host machine, use `host.docker.internal` as the hostname to access the host port
+
 Deploy the stack:
 
 ```bash
 laconic-so --stack fixturenet-optimism deploy up
+
+# Only start fixturenet-optimism pod (L2) if running L1 separately
+laconic-so --stack fixturenet-optimism deploy up --include fixturenet-optimism
 ```
 
-To list down the running containers:
+The `fixturenet-optimism-contracts` service may take a while (`~15 mins`) to complete running as it:
+1. waits for the 'Merge' to happen on L1
+2. waits for a finalized block to exist on L1 (so that it can be taken as a starting block for roll ups)
+3. deploys the L1 contracts
+
+To list down and monitor the running containers:
 
 ```bash
 laconic-so --stack fixturenet-optimism deploy ps
 
 # With status
 docker ps
+
+# Check logs for a container
+docker logs -f <CONTAINER_ID>
 ```
 
 ## Clean up
@@ -58,23 +81,24 @@ Stop all services running in the background:
 
 ```bash
 laconic-so --stack fixturenet-optimism deploy down
+
+# If only ran fixturenet-optimism pod (L2)
+laconic-so --stack fixturenet-optimism deploy down --include fixturenet-optimism
 ```
 
-Remove volumes created by this stack:
+Clear volumes created by this stack:
 
 ```bash
-docker volume ls
+# List all relevant volumes
+docker volume ls -q --filter name=laconic*
 
-docker volume rm laconic-d527651bba3cb61886b36a7400bd2a38_fixturenet-geth-accounts
-docker volume rm laconic-d527651bba3cb61886b36a7400bd2a38_l1-deployment
-docker volume rm laconic-d527651bba3cb61886b36a7400bd2a38_l2-accounts
-docker volume rm laconic-d527651bba3cb61886b36a7400bd2a38_op_node_data
+# Remove all the listed volumes
+docker volume rm $(docker volume ls -q --filter name=laconic*)
 ```
 
 ## Known Issues
 
 * Currently not supported:
   * Stopping and restarting the stack from where it left off; currently starts fresh on a restart
-  * Pointing Optimism (L2) to external L1 endpoint to allow running only L2 services
 * Resource requirements (memory + time) for building `cerc/foundry` image are on the higher side
   * `cerc/optimism-contracts` image is currently based on `cerc/foundry` (Optimism requires foundry installation)
diff --git a/app/data/stacks/fixturenet-optimism/stack.yml b/app/data/stacks/fixturenet-optimism/stack.yml
index 299b1367..e53623ca 100644
--- a/app/data/stacks/fixturenet-optimism/stack.yml
+++ b/app/data/stacks/fixturenet-optimism/stack.yml
@@ -13,9 +13,9 @@ containers:
   - cerc/fixturenet-eth-lighthouse
   - cerc/foundry
   - cerc/optimism-contracts
+  - cerc/optimism-op-node
   - cerc/optimism-l2geth
   - cerc/optimism-op-batcher
-  - cerc/optimism-op-node
 pods:
   - fixturenet-eth
   - fixturenet-optimism
diff --git a/app/data/stacks/mobymask-v2/README.md b/app/data/stacks/mobymask-v2/README.md
index 18af5b2b..68b9b61c 100644
--- a/app/data/stacks/mobymask-v2/README.md
+++ b/app/data/stacks/mobymask-v2/README.md
@@ -31,6 +31,10 @@ git checkout laconic
 # MobyMask
 cd ~/cerc/MobyMask
 git checkout v0.1.1
+
+# Optimism
+cd ~/cerc/optimism
+git checkout @eth-optimism/sdk@0.0.0-20230329025055
 ```
 
 Build the container images:
@@ -43,29 +47,33 @@ This should create the required docker images in the local image registry.
 
 Deploy the stack:
 
-* Deploy the containers
+* Deploy the containers:
 
   ```bash
   laconic-so --stack mobymask-v2 deploy-system up
   ```
 
-* Check that all containers are healthy using `docker ps`
+* List and check the health status of all the containers using `docker ps` and wait for them to be `healthy`
 
-  NOTE: The `mobymask-ui` container might not start. If mobymask-app is not running at http://localhost:3002, run command again to start the container
+  NOTE: The `mobymask-app` container might not start; if the app is not running at http://localhost:3002, restart the container using it's id:
 
   ```bash
-  laconic-so --stack mobymask-v2 deploy-system up
+  docker ps -a | grep "mobymask-app"
+
+  docker restart <CONTAINER_ID>
   ```
 
 ## Tests
 
-Find the watcher container's id:
+Find the watcher container's id and export it for later use:
 
 ```bash
 laconic-so --stack mobymask-v2 deploy-system ps | grep "mobymask-watcher-server"
+
+export CONTAINER_ID=<CONTAINER_ID>
 ```
 
-Example output
+Example output:
 
 ```
 id: 5d3aae4b22039fcd1c9b18feeb91318ede1100581e75bb5ac54f9e436066b02c, name: laconic-bfb01caf98b1b8f7c8db4d33f11b905a-mobymask-watcher-server-1, ports: 0.0.0.0:3001->3001/tcp, 0.0.0.0:9001->9001/tcp, 0.0.0.0:9090->9090/tcp
@@ -73,12 +81,6 @@ id: 5d3aae4b22039fcd1c9b18feeb91318ede1100581e75bb5ac54f9e436066b02c, name: laco
 
 In above output the container ID is `5d3aae4b22039fcd1c9b18feeb91318ede1100581e75bb5ac54f9e436066b02c`
 
-Export it for later use:
-
-```bash
-export CONTAINER_ID=<CONTAINER_ID>
-```
-
 Run the peer tests:
 
 ```bash
@@ -87,7 +89,11 @@ docker exec -w /app/packages/peer $CONTAINER_ID yarn test
 
 ## Web Apps
 
-Check that the status for web-app containers are healthy by using `docker ps`
+Check that the web-app containers are healthy:
+
+```bash
+docker ps | grep -E 'mobymask-app|peer-test-app'
+```
 
 ### mobymask-app
 
@@ -119,15 +125,14 @@ laconic-so --stack mobymask-v2 deploy-system down
 
 Clear volumes:
 
-* List all volumes
+* List all relevant volumes:
 
   ```bash
-  docker volume ls
+  docker volume ls -q --filter name=laconic*
   ```
 
-* Remove volumes created by this stack
+* Remove all the listed volumes:
 
-  Example:
   ```bash
-  docker volume rm laconic-bfb01caf98b1b8f7c8db4d33f11b905a_moby_data_server
+  docker volume rm $(docker volume ls -q --filter name=laconic*)
   ```
diff --git a/app/data/stacks/mobymask-v2/demo.md b/app/data/stacks/mobymask-v2/demo.md
index 35416780..8a5049c4 100644
--- a/app/data/stacks/mobymask-v2/demo.md
+++ b/app/data/stacks/mobymask-v2/demo.md
@@ -1,22 +1,22 @@
 # Demo
 
-* Get the root invite link URL for mobymask-app
+* Get the root invite link URL for mobymask-app:
 
-  ```
+  ```bash
   laconic-so --stack mobymask-v2 deploy-system logs mobymask
   ```
 
-  The invite link is seen at the end of the logs
-  Example:
-  ```
+  The invite link is seen at the end of the logs. Example log:
+
+  ```bash
   laconic-bfb01caf98b1b8f7c8db4d33f11b905a-mobymask-1  | http://127.0.0.1:3002/#/members?invitation=%7B%22v%22%3A1%2C%22signedDelegations%22%3A%5B%7B%22signature%22%3A%220x7559bd412f02677d60820e38243acf61547f79339395a34f7d4e1630e645aeb30535fc219f79b6fbd3af0ce3bd05132ad46d2b274a9fbc4c36bc71edd09850891b%22%2C%22delegation%22%3A%7B%22delegate%22%3A%220xc0838c92B2b71756E0eAD5B3C1e1F186baeEAAac%22%2C%22authority%22%3A%220x0000000000000000000000000000000000000000000000000000000000000000%22%2C%22caveats%22%3A%5B%7B%22enforcer%22%3A%220x558024C7d593B840E1BfD83E9B287a5CDad4db15%22%2C%22terms%22%3A%220x0000000000000000000000000000000000000000000000000000000000000000%22%7D%5D%7D%7D%5D%2C%22key%22%3A%220x98da9805821f1802196443e578fd32af567bababa0a249c07c82df01ecaa7d8d%22%7D
   ```
 
-* Open the invite link in browser to use the mobymask-app.
+* Open the invite link in a browser to use the mobymask-app.
 
   NOTE: Before opening the invite link, clear the browser cache (local storage) for http://127.0.0.1:3002 to remove old invitations
 
-* In the debug panel, check if it is connected to the p2p network (It should be connected to atleast one other peer for pubsub to work).
+* In the debug panel, check if it is connected to the p2p network (it should be connected to at least one other peer for pubsub to work).
 
 * Create an invite link in the app by clicking on `Create new invite link` button.
 
@@ -31,24 +31,24 @@
 
 * In a terminal check logs from the watcher peer container.
 
-  * Get the container id
+  * Get the container id:
 
     ```bash
     laconic-so --stack mobymask-v2 deploy-system ps | grep mobymask-watcher-server
     ```
 
-  * Check logs
+  * Check logs:
 
     ```bash
-    docker logs -f CONTAINER_ID
+    docker logs -f <CONTAINER_ID>
     ```
 
-* It should have received the message, sent transaction to L2 chain and received a transaction receipt with block details.
+* It should have received the message, sent transaction to L2 chain and received a transaction receipt for an `invoke` message with block details.
 
   Example log:
 
-  ```
-  2023-03-23T10:25:19.771Z vulcanize:peer-listener [10:25:19] Received a message on mobymask P2P network from peer: PeerId(12D3KooWAVNswtcrX12iDYukEoxdQwD34kJyRWcQTfZ4unGg2xjd)
+  ```bash
+  2023-03-23T10:25:19.771Z vulcanize:peer-listener [10:25:19] Received a message on mobymask P2P network from peer: 12D3KooWAVNswtcrX12iDYukEoxdQwD34kJyRWcQTfZ4unGg2xjd
   2023-03-23T10:25:24.143Z laconic:libp2p-utils Transaction receipt for invoke message {
     to: '0x558024C7d593B840E1BfD83E9B287a5CDad4db15',
     blockNumber: 1996,
@@ -60,7 +60,7 @@
   ```
 
 * Check the phisher in watcher GQL: http://localhost:3001/graphql
-  * Use the blockHash from transaction receipt details or query for latest block
+  * Use the blockHash from transaction receipt details or query for latest block:
 
     ```gql
     query {
@@ -71,7 +71,7 @@
     }
     ```
 
-  * Get the deployed contract address
+  * Get the deployed contract address:
 
     ```bash
     laconic-so --stack mobymask-v2 deploy-system exec mobymask-app "cat src/config.json"
@@ -94,7 +94,7 @@
     }
     ```
 
-    It should return true for reported phisher names.
+    It should return `true` for reported phisher names.
 
   * Watcher internally is using L2 chain `eth_getStorageAt` method.
 
@@ -107,7 +107,7 @@
 
 * Revocation messages can be seen in the debug panel `MESSAGES` tab of other browsers.
 
-* Check the watcher peer logs. It should receive a message and log the transaction receipt for revoke message.
+* Check the watcher peer logs. It should receive a message and log the transaction receipt for a `revoke` message.
 
 * Try reporting a phisher from the revoked invitee's browser.
 
@@ -129,4 +129,4 @@
     }
     ```
 
-    It should return false as the invitation/delegation used for reporting phishers has been revoked.
+    It should return `false` as the invitation/delegation used for reporting phishers has been revoked.