diff --git a/Makefile b/Makefile
index cac55e80..455412b7 100644
--- a/Makefile
+++ b/Makefile
@@ -29,10 +29,15 @@ leanSpec:
 leanSpec/fixtures: leanSpec
 	cd leanSpec && uv run fill --fork devnet --scheme=prod -o fixtures
 
-# lean-quickstart:
-# 	git clone https://github.com/blockblaz/lean-quickstart.git --depth 1 --single-branch
+lean-quickstart:
+	git clone https://github.com/blockblaz/lean-quickstart.git --depth 1 --single-branch
 
+
+# TODO: start metrics too
 run-devnet: docker-build lean-quickstart ## 🚀 Run a local devnet using lean-quickstart
-	cargo build \
-	&& cd lean-quickstart \
-	&& NETWORK_DIR=local-devnet ./spin-node.sh --node zeam_0,ethlambda_0 --generateGenesis --metrics
+	# Go to lean-quickstart/local-devnet/genesis/validator-config.yaml to modify
+	# the validator configuration for the local devnet.
+	# NOTE: to run the local image of ethlambda, make sure to set the image tag
+	# in lean-quickstart/client-cmds/ethlambda-cmd.sh to "ghcr.io/lambdaclass/ethlambda:local"
+	cd lean-quickstart \
+	&& NETWORK_DIR=local-devnet ./spin-node.sh --node all --generateGenesis --metrics
diff --git a/README.md b/README.md
index 6b24a9fd..22fce010 100644
--- a/README.md
+++ b/README.md
@@ -17,15 +17,8 @@ Run `make help` or take a look at our [`Makefile`](./Makefile) for other useful
 To run a local devnet with multiple clients using [lean-quickstart](https://github.com/blockblaz/lean-quickstart):
 
 ```sh
-# Clone lean-quickstart (if not already present)
-git clone https://github.com/blockblaz/lean-quickstart.git
-
-# Build the ethlambda Docker image
-make docker-build
-
-# Run a 3-client devnet (zeam, ream, ethlambda)
-cd lean-quickstart
-NETWORK_DIR=local-devnet ./spin-node.sh --node zeam_0,ream_0,ethlambda_0 --generateGenesis --metrics
+# This will clone lean-quickstart, build the docker image, and start a local devnet
+make run-devnet
 ```
 
 This generates fresh genesis files and starts all three clients with metrics enabled.
diff --git a/crates/blockchain/src/lib.rs b/crates/blockchain/src/lib.rs
index 10f4e7ed..f120e18f 100644
--- a/crates/blockchain/src/lib.rs
+++ b/crates/blockchain/src/lib.rs
@@ -265,7 +265,7 @@ impl BlockChainServer {
         metrics::update_head_slot(slot);
         metrics::update_latest_justified_slot(self.store.latest_justified().slot);
         metrics::update_latest_finalized_slot(self.store.latest_finalized().slot);
-        metrics::update_validators_count(self.store.head_state().validators.len() as u64);
+        metrics::update_validators_count(self.key_manager.validator_ids().len() as u64);
         Ok(())
     }
 
diff --git a/metrics/README.md b/metrics/README.md
index f54ce23b..eba93e67 100644
--- a/metrics/README.md
+++ b/metrics/README.md
@@ -48,3 +48,10 @@ To remove all data volumes:
 ```bash
 docker compose -f docker-compose-metrics.yaml down -v
 ```
+
+## Troubleshooting
+
+### Docker Desktop on MacOS
+
+lean-quickstart uses the host network mode for Docker containers, which is a problem on MacOS.
+To work around this, enable the ["Enable host networking" option](https://docs.docker.com/enterprise/security/hardened-desktop/settings-management/settings-reference/#enable-host-networking) in Docker Desktop settings under Resources > Network.
diff --git a/metrics/grafana/dashboards/client-interop-dashboard.json b/metrics/grafana/dashboards/client-interop-dashboard.json
index 0e1a82e2..1d94aef1 100644
--- a/metrics/grafana/dashboards/client-interop-dashboard.json
+++ b/metrics/grafana/dashboards/client-interop-dashboard.json
@@ -2418,7 +2418,7 @@
           "refId": "PrometheusVariableQueryEditor-VariableQuery"
         },
         "refresh": 1,
-        "regex": ".*ream.*|.*zeam.*|.*qlean.*|.*lantern.*",
+        "regex": ".*ream.*|.*zeam.*|.*qlean.*|.*lantern.*|.*ethlambda.*",
         "type": "query"
       }
     ]
diff --git a/metrics/prometheus/prometheus.yml b/metrics/prometheus/prometheus.yml
index 178000d0..ef6ef127 100644
--- a/metrics/prometheus/prometheus.yml
+++ b/metrics/prometheus/prometheus.yml
@@ -5,27 +5,27 @@ global:
     monitor: "ethlambda-metrics"
 
 scrape_configs:
-  - job_name: "ethlambda"
+  - job_name: "ethlambda_0"
     static_configs:
-      - targets: ["host.docker.internal:8008"]
+      - targets: ["host.docker.internal:8087"]
         labels:
-          client: "ethlambda"
+          client: "ethlambda_0"
           instance: "local"
 
   # Add additional scrape targets for other Lean Ethereum clients
-  # - job_name: 'ream'
+  # - job_name: "ream_0"
   #   static_configs:
-  #     - targets: ['host.docker.internal:8009']
+  #     - targets: ["host.docker.internal:8082"]
   #       labels:
-  #         client: 'ream'
-  #         instance: 'local'
+  #         client: "ream_0"
+  #         instance: "local"
 
-  # - job_name: 'zeam'
+  # - job_name: "zeam_0"
   #   static_configs:
-  #     - targets: ['host.docker.internal:8010']
+  #     - targets: ["host.docker.internal:8081"]
   #       labels:
-  #         client: 'zeam'
-  #         instance: 'local'
+  #         client: "zeam_0"
+  #         instance: "local"
 
   # Prometheus self-monitoring
   - job_name: "prometheus"