diff --git a/.github/workflows/local-testnet.yml b/.github/workflows/local-testnet.yml
index c129c0ec95c..9992273e0a7 100644
--- a/.github/workflows/local-testnet.yml
+++ b/.github/workflows/local-testnet.yml
@@ -179,7 +179,7 @@ jobs:
     continue-on-error: true
     strategy:
       matrix:
-        network: [sepolia, devnet]
+        network: [sepolia]
     steps:
       - uses: actions/checkout@v5
 
diff --git a/scripts/local_testnet/README.md b/scripts/local_testnet/README.md
index 9d9844c4c41..6260f910192 100644
--- a/scripts/local_testnet/README.md
+++ b/scripts/local_testnet/README.md
@@ -21,7 +21,7 @@ cd ./scripts/local_testnet
 ```
 
 It will build a Lighthouse docker image from the root of the directory and will take an approximately 12 minutes to complete. Once built, the testing will be started automatically. You will see a list of services running and "Started!" at the end. 
-You can also select your own Lighthouse docker image to use by specifying it in `network_params.yml` under the `cl_image` key.
+You can also select your own Lighthouse docker image to use by specifying it in `network_params.yaml` under the `cl_image` key.
 Full configuration reference for Kurtosis is specified [here](https://github.com/ethpandaops/ethereum-package?tab=readme-ov-file#configuration).
 
 To view all running services:
diff --git a/scripts/local_testnet/network_params.yaml b/scripts/local_testnet/network_params.yaml
index cdfacbced4b..a048674e630 100644
--- a/scripts/local_testnet/network_params.yaml
+++ b/scripts/local_testnet/network_params.yaml
@@ -1,19 +1,37 @@
 # Full configuration reference [here](https://github.com/ethpandaops/ethereum-package?tab=readme-ov-file#configuration).
 participants:
-  - el_type: geth
+  - cl_type: lighthouse
+    cl_image: lighthouse:local
+    el_type: geth
     el_image: ethereum/client-go:latest
-    cl_type: lighthouse
+    supernode: true
+    cl_extra_params:
+      - --target-peers=3
+    count: 2
+  - cl_type: lighthouse
     cl_image: lighthouse:local
+    el_type: geth
+    el_image: ethereum/client-go:latest
+    supernode: false
     cl_extra_params:
       - --target-peers=3
-    count: 4
+    count: 2
 network_params:
-  electra_fork_epoch: 0
-  seconds_per_slot: 3
-global_log_level: debug
+  fulu_fork_epoch: 0
+  seconds_per_slot: 6
 snooper_enabled: false
+global_log_level: debug
 additional_services:
   - dora
   - spamoor
   - prometheus_grafana
   - tempo
+spamoor_params:
+  image: ethpandaops/spamoor:master
+  spammers:
+    - scenario: eoatx
+      config:
+        throughput: 200
+    - scenario: blobs
+      config:
+        throughput: 20
\ No newline at end of file
diff --git a/scripts/local_testnet/network_params_das.yaml b/scripts/local_testnet/network_params_das.yaml
deleted file mode 100644
index e3bc5131531..00000000000
--- a/scripts/local_testnet/network_params_das.yaml
+++ /dev/null
@@ -1,41 +0,0 @@
-participants:
-  - cl_type: lighthouse
-    cl_image: lighthouse:local
-    el_type: geth
-    el_image: ethpandaops/geth:master
-    supernode: true
-    cl_extra_params:
-      # Note: useful for testing range sync (only produce block if the node is in sync to prevent forking)
-      - --sync-tolerance-epochs=0
-      - --target-peers=3
-    count: 2
-  - cl_type: lighthouse
-    cl_image: lighthouse:local
-    el_type: geth
-    el_image: ethpandaops/geth:master
-    supernode: false
-    cl_extra_params:
-      # Note: useful for testing range sync (only produce block if the node is in sync to prevent forking)
-      - --sync-tolerance-epochs=0
-      - --target-peers=3
-    count: 2
-network_params:
-  electra_fork_epoch: 0
-  fulu_fork_epoch: 1
-  seconds_per_slot: 6
-snooper_enabled: false
-global_log_level: debug
-additional_services:
-  - dora
-  - spamoor
-  - prometheus_grafana
-  - tempo
-spamoor_params:
-  image: ethpandaops/spamoor:master
-  spammers:
-    - scenario: eoatx
-      config:
-        throughput: 200
-    - scenario: blobs
-      config:
-        throughput: 20
\ No newline at end of file
diff --git a/scripts/local_testnet/start_local_testnet.sh b/scripts/local_testnet/start_local_testnet.sh
index 442e6fd98d9..8d8b33526d3 100755
--- a/scripts/local_testnet/start_local_testnet.sh
+++ b/scripts/local_testnet/start_local_testnet.sh
@@ -78,6 +78,11 @@ if [ "$RUN_ASSERTOOR_TESTS" = true ]; then
   echo "Assertoor has been added to $NETWORK_PARAMS_FILE."
 fi
 
+if [ "$KEEP_ENCLAVE" = false ]; then
+  # Stop local testnet
+  kurtosis enclave rm -f $ENCLAVE_NAME 2>/dev/null || true
+fi
+
 if [ "$BUILD_IMAGE" = true ]; then
     echo "Building Lighthouse Docker image."
     ROOT_DIR="$SCRIPT_DIR/../.."
@@ -86,11 +91,6 @@ else
     echo "Not rebuilding Lighthouse Docker image."
 fi
 
-if [ "$KEEP_ENCLAVE" = false ]; then
-  # Stop local testnet
-  kurtosis enclave rm -f $ENCLAVE_NAME 2>/dev/null || true
-fi
-
 kurtosis run --enclave $ENCLAVE_NAME github.com/ethpandaops/ethereum-package@$ETHEREUM_PKG_VERSION --args-file $NETWORK_PARAMS_FILE
 
 echo "Started!"
diff --git a/scripts/tests/checkpoint-sync-config-devnet.yaml b/scripts/tests/checkpoint-sync-config-devnet.yaml
deleted file mode 100644
index 2392011ed33..00000000000
--- a/scripts/tests/checkpoint-sync-config-devnet.yaml
+++ /dev/null
@@ -1,24 +0,0 @@
-# Kurtosis config file to checkpoint sync to a running devnet supported by ethPandaOps and `ethereum-package`.
-participants:
-  - cl_type: lighthouse
-    cl_image: lighthouse:local
-    el_type: geth
-    el_image: ethpandaops/geth:master
-    cl_extra_params:
-      - --disable-backfill-rate-limiting
-    supernode: true
-  - cl_type: lighthouse
-    cl_image: lighthouse:local
-    el_type: geth
-    el_image: ethpandaops/geth:master
-    cl_extra_params:
-      - --disable-backfill-rate-limiting
-    supernode: false
-
-checkpoint_sync_enabled: true
-checkpoint_sync_url: "https://checkpoint-sync.fusaka-devnet-3.ethpandaops.io"
-
-global_log_level: debug
-
-network_params:
-  network: fusaka-devnet-3