diff --git a/bridges/zombienet/README.md b/bridges/zombienet/README.md
index b601154b624..bd467a410d0 100644
--- a/bridges/zombienet/README.md
+++ b/bridges/zombienet/README.md
@@ -23,7 +23,7 @@ To start those tests, you need to:
 
 - copy fresh `substrate-relay` binary, built in previous point, to the `~/local_bridge_testing/bin/substrate-relay`;
 
-- change the `POLKADOT_SDK_FOLDER` and `ZOMBIENET_BINARY_PATH` (and ensure that the nearby variables
+- change the `POLKADOT_SDK_PATH` and `ZOMBIENET_BINARY_PATH` (and ensure that the nearby variables
 have correct values) in the `./run-tests.sh`.
 
 After that, you could run tests with the `./run-tests.sh` command. Hopefully, it'll show the
diff --git a/bridges/zombienet/environments/rococo-westend/helper.sh b/bridges/zombienet/environments/rococo-westend/helper.sh
new file mode 100755
index 00000000000..049693e0e29
--- /dev/null
+++ b/bridges/zombienet/environments/rococo-westend/helper.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+$POLKADOT_SDK_PATH/cumulus/scripts/bridges_rococo_westend.sh "$@"
diff --git a/bridges/zombienet/environments/rococo-westend/rococo-init.zndsl b/bridges/zombienet/environments/rococo-westend/rococo-init.zndsl
new file mode 100644
index 00000000000..ae3e3e7cb67
--- /dev/null
+++ b/bridges/zombienet/environments/rococo-westend/rococo-init.zndsl
@@ -0,0 +1,8 @@
+Description: User is able to transfer WND from Westend Asset Hub to Rococo Asset Hub and back
+Network: ../../../../cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml
+Creds: config
+
+# ensure that initialization has completed
+asset-hub-rococo-collator1: js-script ../../helpers/wait-hrmp-channel-opened.js with "1013" within 300 seconds
+
+
diff --git a/bridges/zombienet/environments/rococo-westend/rococo.zndsl b/bridges/zombienet/environments/rococo-westend/rococo.zndsl
new file mode 100644
index 00000000000..7ecb05ceefa
--- /dev/null
+++ b/bridges/zombienet/environments/rococo-westend/rococo.zndsl
@@ -0,0 +1,7 @@
+Description: User is able to transfer WND from Westend Asset Hub to Rococo Asset Hub and back
+Network: ../../../../cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml
+Creds: config
+
+# relay is already started - let's wait until with-Westend GRANPDA pallet is initialized at Rococo
+bridge-hub-rococo-collator1: js-script ../../helpers/best-finalized-header-at-bridged-chain.js with "Westend,0" within 400 seconds
+
diff --git a/bridges/zombienet/environments/rococo-westend/spawn.sh b/bridges/zombienet/environments/rococo-westend/spawn.sh
new file mode 100755
index 00000000000..dbdc58d5fa1
--- /dev/null
+++ b/bridges/zombienet/environments/rococo-westend/spawn.sh
@@ -0,0 +1,71 @@
+#!/bin/bash
+
+set -e
+
+trap "trap - SIGTERM && kill -9 -$$" SIGINT SIGTERM EXIT
+
+source "${BASH_SOURCE%/*}/../../utils/common.sh"
+source "${BASH_SOURCE%/*}/../../utils/zombienet.sh"
+
+# whether to init the chains (open HRMP channels, set XCM version, create reserve assets, etc)
+init=0
+while [ $# -ne 0 ]
+do
+    arg="$1"
+    case "$arg" in
+        --init)
+            init=1
+            ;;
+    esac
+    shift
+done
+
+logs_dir=$TEST_DIR/logs
+helper_script="${BASH_SOURCE%/*}/helper.sh"
+
+rococo_def=$POLKADOT_SDK_PATH/cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml
+start_zombienet $TEST_DIR $rococo_def rococo_dir rococo_pid
+echo
+
+westend_def=$POLKADOT_SDK_PATH/cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
+start_zombienet $TEST_DIR $westend_def westend_dir westend_pid
+echo
+
+if [[ $init -eq 1 ]]; then
+  rococo_init_log=$logs_dir/rococo-init.log
+  echo -e "Setting up the rococo side of the bridge. Logs available at: $rococo_init_log\n"
+
+  westend_init_log=$logs_dir/westend-init.log
+  echo -e "Setting up the westend side of the bridge. Logs available at: $westend_init_log\n"
+
+  $helper_script init-asset-hub-rococo-local >> $rococo_init_log 2>&1 &
+  rococo_init_pid=$!
+  $helper_script init-asset-hub-westend-local >> $westend_init_log 2>&1 &
+  westend_init_pid=$!
+  wait -n $rococo_init_pid $westend_init_pid
+
+
+  $helper_script init-bridge-hub-rococo-local >> $rococo_init_log 2>&1 &
+  rococo_init_pid=$!
+  $helper_script init-bridge-hub-westend-local >> $westend_init_log 2>&1 &
+  westend_init_pid=$!
+  wait -n $rococo_init_pid $westend_init_pid
+
+  run_zndsl ${BASH_SOURCE%/*}/rococo-init.zndsl $rococo_dir
+  run_zndsl ${BASH_SOURCE%/*}/westend-init.zndsl $westend_dir
+fi
+
+relay_log=$logs_dir/relay.log
+echo -e "Starting rococo-westend relay. Logs available at: $relay_log\n"
+start_background_process "$helper_script run-relay" $relay_log relay_pid
+
+run_zndsl ${BASH_SOURCE%/*}/rococo.zndsl $rococo_dir
+echo $rococo_dir > $TEST_DIR/rococo.env
+echo
+
+run_zndsl ${BASH_SOURCE%/*}/westend.zndsl $westend_dir
+echo $westend_dir > $TEST_DIR/westend.env
+echo
+
+wait -n $rococo_pid $westend_pid $relay_pid
+kill -9 -$$
diff --git a/bridges/zombienet/environments/rococo-westend/westend-init.zndsl b/bridges/zombienet/environments/rococo-westend/westend-init.zndsl
new file mode 100644
index 00000000000..3b3e4bd91e2
--- /dev/null
+++ b/bridges/zombienet/environments/rococo-westend/westend-init.zndsl
@@ -0,0 +1,7 @@
+Description: User is able to transfer ROC from Rococo Asset Hub to Westend Asset Hub and back
+Network: ../../../../cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
+Creds: config
+
+# ensure that initialization has completed
+asset-hub-westend-collator1: js-script ../../helpers/wait-hrmp-channel-opened.js with "1002" within 600 seconds
+
diff --git a/bridges/zombienet/environments/rococo-westend/westend.zndsl b/bridges/zombienet/environments/rococo-westend/westend.zndsl
new file mode 100644
index 00000000000..b3864d12a0e
--- /dev/null
+++ b/bridges/zombienet/environments/rococo-westend/westend.zndsl
@@ -0,0 +1,6 @@
+Description: User is able to transfer ROC from Rococo Asset Hub to Westend Asset Hub and back
+Network: ../../../../cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
+Creds: config
+
+# relay is already started - let's wait until with-Rococo GRANPDA pallet is initialized at Westend
+bridge-hub-westend-collator1: js-script ../../helpers/best-finalized-header-at-bridged-chain.js with "Rococo,0" within 400 seconds
diff --git a/bridges/zombienet/helpers/best-finalized-header-at-bridged-chain.js b/bridges/zombienet/helpers/best-finalized-header-at-bridged-chain.js
index f7e1eefc84b..af4f18aee9b 100644
--- a/bridges/zombienet/helpers/best-finalized-header-at-bridged-chain.js
+++ b/bridges/zombienet/helpers/best-finalized-header-at-bridged-chain.js
@@ -18,7 +18,7 @@ async function run(nodeName, networkInfo, args) {
         }
 
         // else sleep and retry
-        await new Promise((resolve) => setTimeout(resolve, 12000));
+        await new Promise((resolve) => setTimeout(resolve, 6000));
     }
 }
 
diff --git a/bridges/zombienet/helpers/native-assets-balance-increased.js b/bridges/zombienet/helpers/native-assets-balance-increased.js
index 9ee1a769e9f..a35c753d973 100644
--- a/bridges/zombienet/helpers/native-assets-balance-increased.js
+++ b/bridges/zombienet/helpers/native-assets-balance-increased.js
@@ -13,7 +13,7 @@ async function run(nodeName, networkInfo, args) {
         }
 
         // else sleep and retry
-        await new Promise((resolve) => setTimeout(resolve, 12000));
+        await new Promise((resolve) => setTimeout(resolve, 6000));
     }
 }
 
diff --git a/bridges/zombienet/helpers/relayer-rewards.js b/bridges/zombienet/helpers/relayer-rewards.js
index a5f567db797..5347c649604 100644
--- a/bridges/zombienet/helpers/relayer-rewards.js
+++ b/bridges/zombienet/helpers/relayer-rewards.js
@@ -21,7 +21,7 @@ async function run(nodeName, networkInfo, args) {
         }
 
         // else sleep and retry
-        await new Promise((resolve) => setTimeout(resolve, 12000));
+        await new Promise((resolve) => setTimeout(resolve, 6000));
     }
 }
 
diff --git a/bridges/zombienet/helpers/wait-hrmp-channel-opened.js b/bridges/zombienet/helpers/wait-hrmp-channel-opened.js
index e700cab1d74..765d48cc498 100644
--- a/bridges/zombienet/helpers/wait-hrmp-channel-opened.js
+++ b/bridges/zombienet/helpers/wait-hrmp-channel-opened.js
@@ -15,7 +15,7 @@ async function run(nodeName, networkInfo, args) {
         }
 
         // else sleep and retry
-        await new Promise((resolve) => setTimeout(resolve, 12000));
+        await new Promise((resolve) => setTimeout(resolve, 6000));
     }
 }
 
diff --git a/bridges/zombienet/helpers/wrapped-assets-balance.js b/bridges/zombienet/helpers/wrapped-assets-balance.js
index bb3cea8858a..27287118547 100644
--- a/bridges/zombienet/helpers/wrapped-assets-balance.js
+++ b/bridges/zombienet/helpers/wrapped-assets-balance.js
@@ -19,7 +19,7 @@ async function run(nodeName, networkInfo, args) {
         }
 
         // else sleep and retry
-        await new Promise((resolve) => setTimeout(resolve, 12000));
+        await new Promise((resolve) => setTimeout(resolve, 6000));
     }
 }
 
diff --git a/bridges/zombienet/run-new-test.sh b/bridges/zombienet/run-new-test.sh
new file mode 100755
index 00000000000..3bfcb6d83e9
--- /dev/null
+++ b/bridges/zombienet/run-new-test.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+
+set -e
+
+test=$1
+shift
+
+# whether to use paths for zombienet+bridges tests container or for local testing
+ZOMBIENET_DOCKER_PATHS=0
+while [ $# -ne 0 ]
+do
+    arg="$1"
+    case "$arg" in
+        --docker)
+            ZOMBIENET_DOCKER_PATHS=1
+            ;;
+    esac
+    shift
+done
+
+export POLKADOT_SDK_PATH=`realpath ${BASH_SOURCE%/*}/../..`
+
+# set path to binaries
+if [ "$ZOMBIENET_DOCKER_PATHS" -eq 1 ]; then
+    # otherwise zombienet uses some hardcoded paths
+    unset RUN_IN_CONTAINER
+    unset ZOMBIENET_IMAGE
+
+    export POLKADOT_BINARY=/usr/local/bin/polkadot
+    export POLKADOT_PARACHAIN_BINARY=/usr/local/bin/polkadot-parachain
+
+    export ZOMBIENET_BINARY=/usr/local/bin/zombie
+    export SUBSTRATE_RELAY_BINARY=/usr/local/bin/substrate-relay
+else
+    export POLKADOT_BINARY=$POLKADOT_SDK_PATH/target/release/polkadot
+    export POLKADOT_PARACHAIN_BINARY=$POLKADOT_SDK_PATH/target/release/polkadot-parachain
+
+    export ZOMBIENET_BINARY=~/local_bridge_testing/bin/zombienet-linux-x64
+    export SUBSTRATE_RELAY_BINARY=~/local_bridge_testing/bin/substrate-relay
+fi
+
+export TEST_DIR=`mktemp -d /tmp/bridges-tests-run-XXXXX`
+echo -e "Test folder: $TEST_DIR\n"
+
+${BASH_SOURCE%/*}/tests/$test/run.sh
+
+kill -9 -$$ || echo "Environment already teared down"
\ No newline at end of file
diff --git a/bridges/zombienet/run-tests.sh b/bridges/zombienet/run-tests.sh
index cf3b529e6a9..42818a5cdf3 100755
--- a/bridges/zombienet/run-tests.sh
+++ b/bridges/zombienet/run-tests.sh
@@ -27,34 +27,27 @@ done
 
 # assuming that we'll be using native provide && all processes will be executing locally
 # (we need absolute paths here, because they're used when scripts are called by zombienet from tmp folders)
-export POLKADOT_SDK_FOLDER=`realpath $(dirname "$0")/../..`
-export BRIDGE_TESTS_FOLDER=$POLKADOT_SDK_FOLDER/bridges/zombienet/tests
+export POLKADOT_SDK_PATH=`realpath $(dirname "$0")/../..`
+export BRIDGE_TESTS_FOLDER=$POLKADOT_SDK_PATH/bridges/zombienet/tests
 
 # set pathc to binaries
 if [ "$ZOMBIENET_DOCKER_PATHS" -eq 1 ]; then
-    export POLKADOT_BINARY_PATH=/usr/local/bin/polkadot
-    export POLKADOT_PARACHAIN_BINARY_PATH=/usr/local/bin/polkadot-parachain
-    export POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_ROCOCO=/usr/local/bin/polkadot-parachain
-    export POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_WESTEND=/usr/local/bin/polkadot-parachain
+    export POLKADOT_BINARY=/usr/local/bin/polkadot
+    export POLKADOT_PARACHAIN_BINARY=/usr/local/bin/polkadot-parachain
 
-    export SUBSTRATE_RELAY_PATH=/usr/local/bin/substrate-relay
+    export SUBSTRATE_RELAY_BINARY=/usr/local/bin/substrate-relay
     export ZOMBIENET_BINARY_PATH=/usr/local/bin/zombie
 else
-    export POLKADOT_BINARY_PATH=$POLKADOT_SDK_FOLDER/target/release/polkadot
-    export POLKADOT_PARACHAIN_BINARY_PATH=$POLKADOT_SDK_FOLDER/target/release/polkadot-parachain
-    export POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_ROCOCO=$POLKADOT_PARACHAIN_BINARY_PATH
-    export POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_WESTEND=$POLKADOT_PARACHAIN_BINARY_PATH
+    export POLKADOT_BINARY=$POLKADOT_SDK_PATH/target/release/polkadot
+    export POLKADOT_PARACHAIN_BINARY=$POLKADOT_SDK_PATH/target/release/polkadot-parachain
 
-    export SUBSTRATE_RELAY_PATH=~/local_bridge_testing/bin/substrate-relay
+    export SUBSTRATE_RELAY_BINARY=~/local_bridge_testing/bin/substrate-relay
     export ZOMBIENET_BINARY_PATH=~/local_bridge_testing/bin/zombienet-linux
 fi
 
 # check if `wait` supports -p flag
 if [ `printf "$BASH_VERSION\n5.1" | sort -V | head -n 1` = "5.1" ]; then IS_BASH_5_1=1; else IS_BASH_5_1=0; fi
 
-# check if `wait` supports -p flag
-if [ `printf "$BASH_VERSION\n5.1" | sort -V | head -n 1` = "5.1" ]; then IS_BASH_5_1=1; else IS_BASH_5_1=0; fi
-
 # bridge configuration
 export LANE_ID="00000002"
 
diff --git a/bridges/zombienet/scripts/invoke-script.sh b/bridges/zombienet/scripts/invoke-script.sh
index 835b4fe500f..1f814cd0856 100755
--- a/bridges/zombienet/scripts/invoke-script.sh
+++ b/bridges/zombienet/scripts/invoke-script.sh
@@ -2,6 +2,6 @@
 
 INVOKE_LOG=`mktemp -p $TEST_FOLDER invoke.XXXXX`
 
-pushd $POLKADOT_SDK_FOLDER/cumulus/scripts
+pushd $POLKADOT_SDK_PATH/cumulus/scripts
 ./bridges_rococo_westend.sh $1 >$INVOKE_LOG 2>&1
 popd
diff --git a/bridges/zombienet/scripts/start-relayer.sh b/bridges/zombienet/scripts/start-relayer.sh
index 2f72b5ee556..630fd7316fe 100755
--- a/bridges/zombienet/scripts/start-relayer.sh
+++ b/bridges/zombienet/scripts/start-relayer.sh
@@ -2,6 +2,6 @@
 
 RELAY_LOG=`mktemp -p $TEST_FOLDER relay.XXXXX`
 
-pushd $POLKADOT_SDK_FOLDER/cumulus/scripts
+pushd $POLKADOT_SDK_PATH/cumulus/scripts
 ./bridges_rococo_westend.sh run-relay >$RELAY_LOG 2>&1&
 popd
diff --git a/bridges/zombienet/tests/0001-asset-transfer/roc-reaches-westend.zndsl b/bridges/zombienet/tests/0001-asset-transfer/roc-reaches-westend.zndsl
new file mode 100644
index 00000000000..c7fb73a88c0
--- /dev/null
+++ b/bridges/zombienet/tests/0001-asset-transfer/roc-reaches-westend.zndsl
@@ -0,0 +1,12 @@
+Description: User is able to transfer ROC from Rococo Asset Hub to Westend Asset Hub and back
+Network: ../../../../cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
+Creds: config
+
+# send ROC to //Alice from Rococo AH to Westend AH
+asset-hub-westend-collator1: run ../../environments/rococo-westend/helper.sh with "reserve-transfer-assets-from-asset-hub-rococo-local" within 120 seconds
+
+# check that //Alice received the ROC on Westend AH
+asset-hub-westend-collator1: js-script ../../helpers/wrapped-assets-balance.js with "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY,0,Rococo" within 300 seconds
+
+# check that the relayer //Charlie is rewarded by Westend AH
+bridge-hub-westend-collator1: js-script ../../helpers/relayer-rewards.js with "5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y,0x00000002,0x6268726F,ThisChain,0" within 30 seconds
diff --git a/bridges/zombienet/tests/0001-asset-transfer/run.sh b/bridges/zombienet/tests/0001-asset-transfer/run.sh
new file mode 100755
index 00000000000..07951a0e321
--- /dev/null
+++ b/bridges/zombienet/tests/0001-asset-transfer/run.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -e
+
+source "${BASH_SOURCE%/*}/../../utils/common.sh"
+source "${BASH_SOURCE%/*}/../../utils/zombienet.sh"
+
+${BASH_SOURCE%/*}/../../environments/rococo-westend/spawn.sh --init &
+env_pid=$!
+
+ensure_process_file $env_pid $TEST_DIR/rococo.env 400
+rococo_dir=`cat $TEST_DIR/rococo.env`
+echo
+
+ensure_process_file $env_pid $TEST_DIR/westend.env 180
+westend_dir=`cat $TEST_DIR/westend.env`
+echo
+
+run_zndsl ${BASH_SOURCE%/*}/roc-reaches-westend.zndsl $westend_dir
+run_zndsl ${BASH_SOURCE%/*}/wnd-reaches-rococo.zndsl $rococo_dir
+
+run_zndsl ${BASH_SOURCE%/*}/wroc-reaches-rococo.zndsl $rococo_dir
+run_zndsl ${BASH_SOURCE%/*}/wwnd-reaches-westend.zndsl $westend_dir
diff --git a/bridges/zombienet/tests/0001-asset-transfer/wnd-reaches-rococo.zndsl b/bridges/zombienet/tests/0001-asset-transfer/wnd-reaches-rococo.zndsl
new file mode 100644
index 00000000000..91ce8e5cbff
--- /dev/null
+++ b/bridges/zombienet/tests/0001-asset-transfer/wnd-reaches-rococo.zndsl
@@ -0,0 +1,12 @@
+Description: User is able to transfer WND from Westend Asset Hub to Rococo Asset Hub and back
+Network: ../../../../cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml
+Creds: config
+
+# send WND to //Alice from Westend AH to Rococo AH
+asset-hub-rococo-collator1: run ../../environments/rococo-westend/helper.sh with "reserve-transfer-assets-from-asset-hub-westend-local" within 120 seconds
+
+# check that //Alice received the WND on Rococo AH
+asset-hub-rococo-collator1: js-script ../../helpers/wrapped-assets-balance.js with "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY,0,Westend" within 300 seconds
+
+# check that the relayer //Charlie is rewarded by Rococo AH
+bridge-hub-rococo-collator1: js-script ../../helpers/relayer-rewards.js with "5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y,0x00000002,0x62687764,ThisChain,0" within 30 seconds
diff --git a/bridges/zombienet/tests/0001-asset-transfer/wroc-reaches-rococo.zndsl b/bridges/zombienet/tests/0001-asset-transfer/wroc-reaches-rococo.zndsl
new file mode 100644
index 00000000000..7fbdecadeae
--- /dev/null
+++ b/bridges/zombienet/tests/0001-asset-transfer/wroc-reaches-rococo.zndsl
@@ -0,0 +1,10 @@
+Description: User is able to transfer ROC from Rococo Asset Hub to Westend Asset Hub and back
+Network: ../../../../cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
+Creds: config
+
+# send wROC back to Alice from Westend AH to Rococo AH
+asset-hub-rococo-collator1: run ../../environments/rococo-westend/helper.sh with "withdraw-reserve-assets-from-asset-hub-westend-local" within 120 seconds
+
+# check that //Alice received the wROC on Rococo AH
+# (we wait until //Alice account increases here - there are no other transactions that may increase it)
+asset-hub-rococo-collator1: js-script ../../helpers/native-assets-balance-increased.js with "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY" within 300 seconds
diff --git a/bridges/zombienet/tests/0001-asset-transfer/wwnd-reaches-westend.zndsl b/bridges/zombienet/tests/0001-asset-transfer/wwnd-reaches-westend.zndsl
new file mode 100644
index 00000000000..662e8875268
--- /dev/null
+++ b/bridges/zombienet/tests/0001-asset-transfer/wwnd-reaches-westend.zndsl
@@ -0,0 +1,10 @@
+Description: User is able to transfer ROC from Rococo Asset Hub to Westend Asset Hub and back
+Network: ../../../../cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
+Creds: config
+
+# send wWND back to Alice from Rococo AH to Westend AH
+asset-hub-westend-collator1: run ../../environments/rococo-westend/helper.sh with "withdraw-reserve-assets-from-asset-hub-rococo-local" within 120 seconds
+
+# check that //Alice received the wWND on Westend AH
+# (we wait until //Alice account increases here - there are no other transactions that may increase it)
+asset-hub-westend-collator1: js-script ../../helpers/native-assets-balance-increased.js with "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY" within 300 seconds
diff --git a/bridges/zombienet/utils/common.sh b/bridges/zombienet/utils/common.sh
new file mode 100644
index 00000000000..06f41320be1
--- /dev/null
+++ b/bridges/zombienet/utils/common.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+function start_background_process() {
+    local command=$1
+    local log_file=$2
+    local __pid=$3
+
+    $command > $log_file 2>&1 &
+    eval $__pid="'$!'"
+}
+
+function wait_for_process_file() {
+    local pid=$1
+    local file=$2
+    local timeout=$3
+    local __found=$4
+
+    local time=0
+    until [ -e $file ]; do
+      if ! kill -0 $pid; then
+        echo "Process finished unsuccessfully"
+        return
+      fi
+      if (( time++ >= timeout )); then
+        echo "Timeout waiting for file $file: $timeout seconds"
+        eval $__found=0
+        return
+      fi
+      sleep 1
+    done
+
+    echo "File $file found after $time seconds"
+    eval $__found=1
+}
+
+function ensure_process_file() {
+    local pid=$1
+    local file=$2
+    local timeout=$3
+
+    wait_for_process_file $pid $file $timeout file_found
+    if [ "$file_found" != "1" ]; then
+      exit 1
+    fi
+}
diff --git a/bridges/zombienet/utils/zombienet.sh b/bridges/zombienet/utils/zombienet.sh
new file mode 100644
index 00000000000..bbcd1a30620
--- /dev/null
+++ b/bridges/zombienet/utils/zombienet.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+source "${BASH_SOURCE%/*}/common.sh"
+
+function start_zombienet() {
+    local test_dir=$1
+    local definition_path=$2
+    local __zombienet_dir=$3
+    local __zombienet_pid=$4
+
+    local zombienet_name=`basename $definition_path .toml`
+    local zombienet_dir=$test_dir/$zombienet_name
+    eval $__zombienet_dir="'$zombienet_dir'"
+    mkdir -p $zombienet_dir
+    rm -rf $zombienet_dir
+
+    local logs_dir=$test_dir/logs
+    mkdir -p $logs_dir
+    local zombienet_log=$logs_dir/$zombienet_name.log
+
+    echo "Starting $zombienet_name zombienet. Logs available at: $zombienet_log"
+    start_background_process \
+        "$ZOMBIENET_BINARY spawn --dir $zombienet_dir --provider native $definition_path" \
+        "$zombienet_log" zombienet_pid
+
+    ensure_process_file $zombienet_pid "$zombienet_dir/zombie.json" 180
+    echo "$zombienet_name zombienet started successfully"
+
+    eval $__zombienet_pid="'$zombienet_pid'"
+}
+
+function run_zndsl() {
+    local zndsl_file=$1
+    local zombienet_dir=$2
+
+    echo "Running $zndsl_file."
+    $ZOMBIENET_BINARY test --dir $zombienet_dir --provider native $zndsl_file $zombienet_dir/zombie.json
+    echo
+}
diff --git a/cumulus/parachains/runtimes/bridge-hubs/README.md b/cumulus/parachains/runtimes/bridge-hubs/README.md
index cf617db730d..4e9403bf25e 100644
--- a/cumulus/parachains/runtimes/bridge-hubs/README.md
+++ b/cumulus/parachains/runtimes/bridge-hubs/README.md
@@ -89,9 +89,8 @@ cp target/release/polkadot-parachain ~/local_bridge_testing/bin/polkadot-paracha
 cd <polkadot-sdk-git-repo-dir>
 
 # Rococo + BridgeHubRococo + AssetHub for Rococo (mirroring Kusama)
-POLKADOT_BINARY_PATH=~/local_bridge_testing/bin/polkadot \
-POLKADOT_PARACHAIN_BINARY_PATH=~/local_bridge_testing/bin/polkadot-parachain \
-POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_ROCOCO=~/local_bridge_testing/bin/polkadot-parachain-asset-hub \
+POLKADOT_BINARY=~/local_bridge_testing/bin/polkadot \
+POLKADOT_PARACHAIN_BINARY=~/local_bridge_testing/bin/polkadot-parachain \
 	~/local_bridge_testing/bin/zombienet-linux --provider native spawn ./cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml
 ```
 
@@ -99,9 +98,8 @@ POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_ROCOCO=~/local_bridge_testing/bin/p
 cd <polkadot-sdk-git-repo-dir>
 
 # Westend + BridgeHubWestend + AssetHub for Westend (mirroring Polkadot)
-POLKADOT_BINARY_PATH=~/local_bridge_testing/bin/polkadot \
-POLKADOT_PARACHAIN_BINARY_PATH=~/local_bridge_testing/bin/polkadot-parachain \
-POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_WESTEND=~/local_bridge_testing/bin/polkadot-parachain-asset-hub \
+POLKADOT_BINARY=~/local_bridge_testing/bin/polkadot \
+POLKADOT_PARACHAIN_BINARY=~/local_bridge_testing/bin/polkadot-parachain \
 	~/local_bridge_testing/bin/zombienet-linux --provider native spawn ./cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
 ```
 
diff --git a/cumulus/scripts/bridges_common.sh b/cumulus/scripts/bridges_common.sh
index 029d4cd4ff7..2064dbbb5b8 100755
--- a/cumulus/scripts/bridges_common.sh
+++ b/cumulus/scripts/bridges_common.sh
@@ -2,7 +2,7 @@
 
 function relayer_path() {
     local default_path=~/local_bridge_testing/bin/substrate-relay
-    local path="${SUBSTRATE_RELAY_PATH:-$default_path}"
+    local path="${SUBSTRATE_RELAY_BINARY:-$default_path}"
     echo "$path"
 }
 
diff --git a/cumulus/scripts/bridges_rococo_westend.sh b/cumulus/scripts/bridges_rococo_westend.sh
index 3b6f8e89285..7bde5ede77f 100755
--- a/cumulus/scripts/bridges_rococo_westend.sh
+++ b/cumulus/scripts/bridges_rococo_westend.sh
@@ -185,8 +185,8 @@ function run_relay() {
 
 case "$1" in
   run-relay)
-    init_ro_wnd
     init_wnd_ro
+    init_ro_wnd
     run_relay
     ;;
   init-asset-hub-rococo-local)
diff --git a/cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml b/cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml
index 99a7d0035b5..52271f94421 100644
--- a/cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml
+++ b/cumulus/zombienet/bridge-hubs/bridge_hub_rococo_local_network.toml
@@ -2,7 +2,7 @@
 node_spawn_timeout = 240
 
 [relaychain]
-default_command = "{{POLKADOT_BINARY_PATH}}"
+default_command = "{{POLKADOT_BINARY}}"
 default_args = [ "-lparachain=debug,xcm=trace" ]
 chain = "rococo-local"
 
@@ -36,24 +36,22 @@ cumulus_based = true
 	[[parachains.collators]]
 	name = "bridge-hub-rococo-collator1"
 	validator = true
-	command = "{{POLKADOT_PARACHAIN_BINARY_PATH}}"
+	command = "{{POLKADOT_PARACHAIN_BINARY}}"
 	rpc_port = 8933
 	ws_port = 8943
 	args = [
-		"-lparachain=debug,runtime::bridge-hub=trace,runtime::bridge=trace,runtime::bridge-dispatch=trace,bridge=trace,runtime::bridge-messages=trace,xcm=trace",
-		"--force-authoring"
+		"-lparachain=debug,runtime::bridge-hub=trace,runtime::bridge=trace,runtime::bridge-dispatch=trace,bridge=trace,runtime::bridge-messages=trace,xcm=trace"
 	]
 
 	# run bob as parachain collator
 	[[parachains.collators]]
 	name = "bridge-hub-rococo-collator2"
 	validator = true
-	command = "{{POLKADOT_PARACHAIN_BINARY_PATH}}"
+	command = "{{POLKADOT_PARACHAIN_BINARY}}"
 	rpc_port = 8934
 	ws_port = 8944
 	args = [
-		"-lparachain=trace,runtime::bridge-hub=trace,runtime::bridge=trace,runtime::bridge-dispatch=trace,bridge=trace,runtime::bridge-messages=trace,xcm=trace",
-		"--force-authoring"
+		"-lparachain=trace,runtime::bridge-hub=trace,runtime::bridge=trace,runtime::bridge-dispatch=trace,bridge=trace,runtime::bridge-messages=trace,xcm=trace"
 	]
 
 [[parachains]]
@@ -65,14 +63,14 @@ cumulus_based = true
 	name = "asset-hub-rococo-collator1"
 	rpc_port = 9911
 	ws_port = 9910
-	command = "{{POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_ROCOCO}}"
+	command = "{{POLKADOT_PARACHAIN_BINARY}}"
 	args = [
 		"-lparachain=debug,xcm=trace,runtime::bridge-transfer=trace"
 	]
 
 	[[parachains.collators]]
 	name = "asset-hub-rococo-collator2"
-	command = "{{POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_ROCOCO}}"
+	command = "{{POLKADOT_PARACHAIN_BINARY}}"
 	args = [
 		"-lparachain=debug,xcm=trace,runtime::bridge-transfer=trace"
 	]
diff --git a/cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml b/cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
index 1919d1c63f2..f2550bcc995 100644
--- a/cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
+++ b/cumulus/zombienet/bridge-hubs/bridge_hub_westend_local_network.toml
@@ -2,7 +2,7 @@
 node_spawn_timeout = 240
 
 [relaychain]
-default_command = "{{POLKADOT_BINARY_PATH}}"
+default_command = "{{POLKADOT_BINARY}}"
 default_args = [ "-lparachain=debug,xcm=trace" ]
 chain = "westend-local"
 
@@ -36,24 +36,22 @@ cumulus_based = true
 	[[parachains.collators]]
 	name = "bridge-hub-westend-collator1"
 	validator = true
-	command = "{{POLKADOT_PARACHAIN_BINARY_PATH}}"
+	command = "{{POLKADOT_PARACHAIN_BINARY}}"
 	rpc_port = 8935
 	ws_port = 8945
 	args = [
-		"-lparachain=debug,runtime::mmr=info,substrate=info,runtime=info,runtime::bridge-hub=trace,runtime::bridge=trace,runtime::bridge-dispatch=trace,bridge=trace,runtime::bridge-messages=trace,xcm=trace",
-		"--force-authoring"
+		"-lparachain=debug,runtime::mmr=info,substrate=info,runtime=info,runtime::bridge-hub=trace,runtime::bridge=trace,runtime::bridge-dispatch=trace,bridge=trace,runtime::bridge-messages=trace,xcm=trace"
 	]
 
 	# run bob as parachain collator
 	[[parachains.collators]]
 	name = "bridge-hub-westend-collator2"
 	validator = true
-	command = "{{POLKADOT_PARACHAIN_BINARY_PATH}}"
+	command = "{{POLKADOT_PARACHAIN_BINARY}}"
 	rpc_port = 8936
 	ws_port = 8946
 	args = [
-		"-lparachain=trace,runtime::mmr=info,substrate=info,runtime=info,runtime::bridge-hub=trace,runtime::bridge=trace,runtime::bridge-dispatch=trace,bridge=trace,runtime::bridge-messages=trace,xcm=trace",
-		"--force-authoring"
+		"-lparachain=trace,runtime::mmr=info,substrate=info,runtime=info,runtime::bridge-hub=trace,runtime::bridge=trace,runtime::bridge-dispatch=trace,bridge=trace,runtime::bridge-messages=trace,xcm=trace"
 	]
 
 [[parachains]]
@@ -65,14 +63,14 @@ cumulus_based = true
 	name = "asset-hub-westend-collator1"
 	rpc_port = 9011
 	ws_port = 9010
-	command = "{{POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_WESTEND}}"
+	command = "{{POLKADOT_PARACHAIN_BINARY}}"
 	args = [
 		"-lparachain=debug,xcm=trace,runtime::bridge-transfer=trace"
 	]
 
 	[[parachains.collators]]
 	name = "asset-hub-westend-collator2"
-	command = "{{POLKADOT_PARACHAIN_BINARY_PATH_FOR_ASSET_HUB_WESTEND}}"
+	command = "{{POLKADOT_PARACHAIN_BINARY}}"
 	args = [
 		"-lparachain=debug,xcm=trace,runtime::bridge-transfer=trace"
 	]