diff --git a/config/network.json b/config/network.json
new file mode 100644
index 0000000..6904702
--- /dev/null
+++ b/config/network.json
@@ -0,0 +1,45 @@
+{
+  "chainId": "laconic-mainnet",
+  "chainName": "Laconicd",
+  "rpc": "http://localhost:26657",
+  "rest": "https://localhost:1317",
+  "bip44": {
+    "coinType": 118
+  },
+  "bech32Config": {
+    "bech32PrefixAccAddr": "laconic",
+    "bech32PrefixAccPub": "laconipub",
+    "bech32PrefixValAddr": "laconicvaloper",
+    "bech32PrefixValPub": "laconicvaloperpub",
+    "bech32PrefixConsAddr": "laconicvalcons",
+    "bech32PrefixConsPub": "laconicvalconspub"
+  },
+  "currencies": [
+    {
+      "coinDenom": "ALNT",
+      "coinMinimalDenom": "alnt",
+      "coinDecimals": 18
+    }
+  ],
+  "feeCurrencies": [
+    {
+      "coinDenom": "ALNT",
+      "coinMinimalDenom": "alnt",
+      "coinDecimals": 18
+    }
+  ],
+  "stakeCurrency": {
+    "coinDenom": "ALNT",
+    "coinMinimalDenom": "alnt",
+    "coinDecimals": 18
+  },
+  "gasPriceStep": {
+    "low": 0.01,
+    "average": 0.01,
+    "high": 0.02
+  },
+  "features": [
+    "stargate",
+    "ibc-transfer"
+  ]
+}
diff --git a/docs/demo.md b/docs/demo.md
index bcf2393..6d913d5 100644
--- a/docs/demo.md
+++ b/docs/demo.md
@@ -386,6 +386,8 @@
   ```bash
   # Set multisig app deployment directory
   export MULTISIG_DEPLOYMENT_DIR=cosmos-multisig-deployment
+  # Set path to custom network JSON file
+  export NETWORK_JSON_PATH=~/cerc/laconicd-stack/config/network.json
   ```
 
 - Copy the example variables file:
diff --git a/playbooks/cosmos-multisig-app/cosmos-multisig-app-start.yml b/playbooks/cosmos-multisig-app/cosmos-multisig-app-start.yml
index b09d6d3..b277df3 100644
--- a/playbooks/cosmos-multisig-app/cosmos-multisig-app-start.yml
+++ b/playbooks/cosmos-multisig-app/cosmos-multisig-app-start.yml
@@ -8,6 +8,7 @@
     multisig_deployment_dir: "{{ lookup('env', 'MULTISIG_DEPLOYMENT_DIR') }}"
     spec_output: "{{data_directory}}/cosmos-multisig-ui-spec.yml"
     spec_template: "./templates/specs/cosmos-multisig-app-spec-template.yml.j2"
+    network_json: "{{ lookup('env', 'NETWORK_JSON_PATH') }}"
   tasks:
     - name: Fail if DATA_DIRECTORY env var is not set
       fail:
@@ -32,11 +33,11 @@
 
     - name: Create deployment from spec file
       shell: |
-         laconic-so --stack ~/cerc/cosmos-multisig-ui/stack-orchestrator/stacks/cosmos-multisig-ui/ deploy create --spec-file {{ spec_output }} --deployment-dir {{ multisig_deployment_dir }}
+         laconic-so --stack ~/cerc/cosmos-multisig-ui/stack-orchestrator/stacks/cosmos-multisig-ui/ deploy create --spec-file {{ spec_output }} --deployment-dir {{data_directory}}/{{ multisig_deployment_dir }}
 
     - name: Create config.env in deployment dir
       copy:
-        dest: "{{ multisig_deployment_dir }}/config.env"
+        dest: "{{data_directory}}/{{ multisig_deployment_dir }}/config.env"
         content: |
           NEXT_PUBLIC_MULTICHAIN={{ next_public_multichain }}
           NEXT_PUBLIC_REGISTRY_NAME={{ next_public_registry_name }}
@@ -51,8 +52,20 @@
           NEXT_PUBLIC_GAS_PRICE={{ next_public_gas_price }}
           NEXT_PUBLIC_ADDRESS_PREFIX={{ next_public_address_prefix }}
           NEXT_PUBLIC_IS_HTTP_ENABLED={{ next_public_is_http_enabled }}
+          CHAIN_CONFIG_PATH="{{data_directory}}/{{ multisig_deployment_dir }}/config/cosmos-multisig-ui/network.json"
+        mode: '0644'
+
+    - name: Fail if NETWORK_JSON_PATH env var is not set
+      fail:
+        msg: "Environment variable NETWORK_JSON_PATH is not set. Please export it before running the playbook."
+      when: lookup('env', 'NETWORK_JSON_PATH') == ''
+
+    - name: Copy network JSON to deployment config directory
+      copy:
+        src: "{{ lookup('env', 'NETWORK_JSON_PATH') }}"
+        dest: "{{data_directory}}/{{ multisig_deployment_dir }}/config/cosmos-multisig-ui/network.json"
         mode: '0644'
 
     - name: Start the deployment
       shell: |
-        laconic-so deployment --dir {{ multisig_deployment_dir }} start
+        laconic-so deployment --dir {{data_directory}}/{{ multisig_deployment_dir }} start