diff --git a/app/data/compose/docker-compose-mobymask-app.yml b/app/data/compose/docker-compose-mobymask-app.yml
index 22d5f70f..100342ae 100644
--- a/app/data/compose/docker-compose-mobymask-app.yml
+++ b/app/data/compose/docker-compose-mobymask-app.yml
@@ -14,7 +14,8 @@ services:
       CERC_APP_WATCHER_URL: ${CERC_APP_WATCHER_URL}
       CERC_RELAY_NODES: ${CERC_RELAY_NODES}
       CERC_DENY_MULTIADDRS: ${CERC_DENY_MULTIADDRS}
-      CERC_RELEASE: "v0.1.6"
+      CERC_PUBSUB: ${CERC_PUBSUB}
+      CERC_RELEASE: "v0.1.7"
       CERC_USE_NPM: true
       CERC_CONFIG_FILE: "src/config.json"
     working_dir: /scripts
@@ -48,7 +49,8 @@ services:
       CERC_APP_WATCHER_URL: ${CERC_APP_WATCHER_URL}
       CERC_RELAY_NODES: ${CERC_RELAY_NODES}
       CERC_DENY_MULTIADDRS: ${CERC_DENY_MULTIADDRS}
-      CERC_RELEASE: "v0.1.6-lxdao-0.1.1"
+      CERC_PUBSUB: ${CERC_PUBSUB}
+      CERC_RELEASE: "v0.1.7-lxdao-0.1.1"
       CERC_USE_NPM: false
       CERC_CONFIG_FILE: "src/utils/config.json"
     working_dir: /scripts
diff --git a/app/data/compose/docker-compose-watcher-mobymask-v2.yml b/app/data/compose/docker-compose-watcher-mobymask-v2.yml
index bed274c6..176135fb 100644
--- a/app/data/compose/docker-compose-watcher-mobymask-v2.yml
+++ b/app/data/compose/docker-compose-watcher-mobymask-v2.yml
@@ -84,6 +84,7 @@ services:
       CERC_PRIVATE_KEY_PEER: ${CERC_PRIVATE_KEY_PEER}
       CERC_RELAY_PEERS: ${CERC_RELAY_PEERS}
       CERC_DENY_MULTIADDRS: ${CERC_DENY_MULTIADDRS}
+      CERC_PUBSUB: ${CERC_PUBSUB}
       CERC_RELAY_ANNOUNCE_DOMAIN: ${CERC_RELAY_ANNOUNCE_DOMAIN}
       CERC_ENABLE_PEER_L2_TXS: ${CERC_ENABLE_PEER_L2_TXS}
       CERC_DEPLOYED_CONTRACT: ${CERC_DEPLOYED_CONTRACT}
diff --git a/app/data/config/watcher-mobymask-v2/mobymask-app-start.sh b/app/data/config/watcher-mobymask-v2/mobymask-app-start.sh
index d6f0d452..3623d0ba 100755
--- a/app/data/config/watcher-mobymask-v2/mobymask-app-start.sh
+++ b/app/data/config/watcher-mobymask-v2/mobymask-app-start.sh
@@ -8,6 +8,7 @@ CERC_CHAIN_ID="${CERC_CHAIN_ID:-${DEFAULT_CERC_CHAIN_ID}}"
 CERC_DEPLOYED_CONTRACT="${CERC_DEPLOYED_CONTRACT:-${DEFAULT_CERC_DEPLOYED_CONTRACT}}"
 CERC_RELAY_NODES="${CERC_RELAY_NODES:-${DEFAULT_CERC_RELAY_NODES}}"
 CERC_DENY_MULTIADDRS="${CERC_DENY_MULTIADDRS:-${DEFAULT_CERC_DENY_MULTIADDRS}}"
+CERC_PUBSUB="${CERC_PUBSUB:-${DEFAULT_CERC_PUBSUB}}"
 CERC_APP_WATCHER_URL="${CERC_APP_WATCHER_URL:-${DEFAULT_CERC_APP_WATCHER_URL}}"
 
 # If not set (or []), check the mounted volume for relay peer id
@@ -41,7 +42,8 @@ jq --arg address "$CERC_DEPLOYED_CONTRACT" \
   --argjson chainId "$CERC_CHAIN_ID" \
   --argjson relayNodes "$CERC_RELAY_NODES" \
   --argjson denyMultiaddrs "$CERC_DENY_MULTIADDRS" \
-  '.address = $address | .chainId = $chainId | .relayNodes = $relayNodes | .peer.denyMultiaddrs = $denyMultiaddrs' \
+  --arg pubsub "$CERC_PUBSUB" \
+  '.address = $address | .chainId = $chainId | .relayNodes = $relayNodes | .peer.denyMultiaddrs = $denyMultiaddrs | .peer.pubsub = $pubsub' \
   /app/src/mobymask-app-config.json > /app/${CERC_CONFIG_FILE}
 
 if [ "${CERC_USE_NPM}" = "true" ]; then
diff --git a/app/data/config/watcher-mobymask-v2/mobymask-params.env b/app/data/config/watcher-mobymask-v2/mobymask-params.env
index 5e4d9fb6..2cf65c7e 100644
--- a/app/data/config/watcher-mobymask-v2/mobymask-params.env
+++ b/app/data/config/watcher-mobymask-v2/mobymask-params.env
@@ -27,3 +27,6 @@ DEFAULT_CERC_RELAY_NODES=[]
 
 # Set of multiaddrs to be avoided while dialling
 DEFAULT_CERC_DENY_MULTIADDRS=[]
+
+# Type of pubsub to be used
+DEFAULT_CERC_PUBSUB=""
diff --git a/app/data/config/watcher-mobymask-v2/start-server.sh b/app/data/config/watcher-mobymask-v2/start-server.sh
index eab8bac2..110265bc 100755
--- a/app/data/config/watcher-mobymask-v2/start-server.sh
+++ b/app/data/config/watcher-mobymask-v2/start-server.sh
@@ -9,6 +9,7 @@ CERC_L1_ACCOUNTS_CSV_URL="${CERC_L1_ACCOUNTS_CSV_URL:-${DEFAULT_CERC_L1_ACCOUNTS
 
 CERC_RELAY_PEERS="${CERC_RELAY_PEERS:-${DEFAULT_CERC_RELAY_PEERS}}"
 CERC_DENY_MULTIADDRS="${CERC_DENY_MULTIADDRS:-${DEFAULT_CERC_DENY_MULTIADDRS}}"
+CERC_PUBSUB="${CERC_PUBSUB:-${DEFAULT_CERC_PUBSUB}}"
 CERC_RELAY_ANNOUNCE_DOMAIN="${CERC_RELAY_ANNOUNCE_DOMAIN:-${DEFAULT_CERC_RELAY_ANNOUNCE_DOMAIN}}"
 CERC_ENABLE_PEER_L2_TXS="${CERC_ENABLE_PEER_L2_TXS:-${DEFAULT_CERC_ENABLE_PEER_L2_TXS}}"
 CERC_DEPLOYED_CONTRACT="${CERC_DEPLOYED_CONTRACT:-${DEFAULT_CERC_DEPLOYED_CONTRACT}}"
@@ -50,6 +51,7 @@ WATCHER_CONFIG_TEMPLATE=$(cat environments/watcher-config-template.toml)
 WATCHER_CONFIG=$(echo "$WATCHER_CONFIG_TEMPLATE" | \
   sed -E "s|REPLACE_WITH_CERC_RELAY_PEERS|${CERC_RELAY_PEERS}|g; \
           s|REPLACE_WITH_CERC_DENY_MULTIADDRS|${CERC_DENY_MULTIADDRS}|g; \
+          s/REPLACE_WITH_CERC_PUBSUB/${CERC_PUBSUB}/g; \
           s/REPLACE_WITH_CERC_RELAY_ANNOUNCE_DOMAIN/${CERC_RELAY_ANNOUNCE_DOMAIN}/g; \
           s|REPLACE_WITH_CERC_RELAY_MULTIADDR|${CERC_RELAY_MULTIADDR}|g; \
           s/REPLACE_WITH_CERC_ENABLE_PEER_L2_TXS/${CERC_ENABLE_PEER_L2_TXS}/g; \
diff --git a/app/data/config/watcher-mobymask-v2/watcher-config-template.toml b/app/data/config/watcher-mobymask-v2/watcher-config-template.toml
index 5a2c7ce4..a0dd3b34 100644
--- a/app/data/config/watcher-mobymask-v2/watcher-config-template.toml
+++ b/app/data/config/watcher-mobymask-v2/watcher-config-template.toml
@@ -30,6 +30,7 @@
       denyMultiaddrs = REPLACE_WITH_CERC_DENY_MULTIADDRS
       peerIdFile = './peers/relay-id.json'
       announce = 'REPLACE_WITH_CERC_RELAY_ANNOUNCE_DOMAIN'
+      pubsub = 'REPLACE_WITH_CERC_PUBSUB'
       enableDebugInfo = true
 
     [server.p2p.peer]
@@ -37,6 +38,7 @@
       pubSubTopic = 'mobymask'
       denyMultiaddrs = REPLACE_WITH_CERC_DENY_MULTIADDRS
       peerIdFile = './peers/peer-id.json'
+      pubsub = 'REPLACE_WITH_CERC_PUBSUB'
       enableDebugInfo = true
       enableL2Txs = REPLACE_WITH_CERC_ENABLE_PEER_L2_TXS
 
diff --git a/app/data/stacks/fixturenet-optimism/README.md b/app/data/stacks/fixturenet-optimism/README.md
index c083ee68..4d933f83 100644
--- a/app/data/stacks/fixturenet-optimism/README.md
+++ b/app/data/stacks/fixturenet-optimism/README.md
@@ -18,6 +18,11 @@ Build the container images:
 
 ```bash
 laconic-so --stack fixturenet-optimism build-containers
+
+# If redeploying with changes in the stack containers
+laconic-so --stack fixturenet-optimism build-containers --force-rebuild
+
+# If errors are thrown during build, old images used by this stack would have to be deleted
 ```
 
 Note: this will take >10 mins depending on the specs of your machine, and **requires** 16GB of memory or greater.
diff --git a/app/data/stacks/mobymask-v2/mobymask-only.md b/app/data/stacks/mobymask-v2/mobymask-only.md
index b45bfc8e..ef18d835 100644
--- a/app/data/stacks/mobymask-v2/mobymask-only.md
+++ b/app/data/stacks/mobymask-v2/mobymask-only.md
@@ -60,6 +60,9 @@ Create and update an env file to be used in the next step ([defaults](../../conf
   # (Optional) Set of multiaddrs to be avoided while dialling
   CERC_DENY_MULTIADDRS=[]
 
+  # (Optional) Type of pubsub to be used
+  CERC_PUBSUB=""
+
   # Set to false for disabling watcher peer to send txs to L2
   CERC_ENABLE_PEER_L2_TXS=true
 
@@ -119,4 +122,8 @@ docker volume ls -q --filter "name=mobymask_v2"
 
 # Remove all the listed volumes
 docker volume rm $(docker volume ls -q --filter "name=mobymask_v2")
+
+# WARNING: To avoid changing peer ids for the watcher, `peers_ids` volume can be persisted
+# To delete all volumes except for `peers_ids`
+docker volume rm $(docker volume ls -q --filter "name=mobymask_v2" | grep -v "peers_ids$")
 ```
diff --git a/app/data/stacks/mobymask-v2/stack.yml b/app/data/stacks/mobymask-v2/stack.yml
index 80db392e..4344d54f 100644
--- a/app/data/stacks/mobymask-v2/stack.yml
+++ b/app/data/stacks/mobymask-v2/stack.yml
@@ -6,8 +6,8 @@ repos:
   - github.com/dboreham/foundry
   - github.com/ethereum-optimism/optimism@v1.0.4
   - github.com/ethereum-optimism/op-geth@v1.101105.2
-  - github.com/cerc-io/watcher-ts@v0.2.55
-  - github.com/cerc-io/mobymask-v2-watcher-ts@v0.1.2
+  - github.com/cerc-io/watcher-ts@v0.2.56
+  - github.com/cerc-io/mobymask-v2-watcher-ts@v0.1.3
   - github.com/cerc-io/MobyMask@v0.1.3
   - github.com/cerc-io/mobymask-ui
 containers:
diff --git a/app/data/stacks/mobymask-v2/web-apps.md b/app/data/stacks/mobymask-v2/web-apps.md
index 1f231cfe..0ea62769 100644
--- a/app/data/stacks/mobymask-v2/web-apps.md
+++ b/app/data/stacks/mobymask-v2/web-apps.md
@@ -45,6 +45,9 @@ Create and update an env file to be used in the next step ([defaults](../../conf
 
   # L2 Chain ID used by mobymask web-app for L2 txs
   CERC_CHAIN_ID=42069
+
+  # (Optional) Type of pubsub to be used ("floodsub" | "gossipsub")
+  CERC_PUBSUB=""
   ```
 
 * NOTE: If watcher is running on the host machine, use `host.docker.internal` as the hostname to access the host port