diff --git a/example.env b/example.env
index cfae98b..d2601a0 100644
--- a/example.env
+++ b/example.env
@@ -9,10 +9,8 @@ PORT=8000
 SERVICE_FEE=0.05
 REWARD_ADDRESS=
 
-# bull settings
-REDIS_URL=redis://127.0.0.1:6379
-
 # tx-manager settings
-RPC_URL=
 CHAIN_ID=1
 PRIVATE_KEY=
+CONFIRMATIONS=4
+MAX_GAS_PRICE=100
diff --git a/src/config/bull.config.ts b/src/config/bull.config.ts
index 32a38f3..98a070a 100644
--- a/src/config/bull.config.ts
+++ b/src/config/bull.config.ts
@@ -3,7 +3,7 @@ import { registerAs } from '@nestjs/config';
 export default registerAs('bull', () => ({
   name: 'withdrawal',
   redis: {
-    host: 'localhost',
+    host: process.env.NODE_ENV === 'development' ? 'localhost' : 'redis',
     port: 6379,
   },
   settings: {
diff --git a/src/config/configuration.ts b/src/config/configuration.ts
index f3afd8a..12a00b7 100644
--- a/src/config/configuration.ts
+++ b/src/config/configuration.ts
@@ -1,16 +1,17 @@
 import { Wallet } from 'ethers';
+import { NETWORKS_INFO } from '@/constants';
 
 import { version } from '../../package.json';
 
 export const baseConfig = () => ({
   base: {
     version,
-    gasLimit: 600000,
-    minimumBalance: 0.5,
+    port: process.env.PORT,
     chainId: process.env.CHAIN_ID,
     serviceFee: process.env.SERVICE_FEE,
     rewardAddress: process.env.REWARD_ADDRESS,
-    port: parseInt(process.env.PORT, 10) || 8080,
     address: new Wallet(process.env.PRIVATE_KEY).address,
+    gasLimit: NETWORKS_INFO[process.env.CHAIN_ID].gasLimit,
+    minimumBalance: NETWORKS_INFO[process.env.CHAIN_ID].minimumBalance,
   },
 });
diff --git a/src/config/txManager.config.ts b/src/config/txManager.config.ts
index c383496..0f53b32 100644
--- a/src/config/txManager.config.ts
+++ b/src/config/txManager.config.ts
@@ -1,11 +1,12 @@
 import { registerAs } from '@nestjs/config';
+import { RPC_LIST } from '@/constants';
 
 export default registerAs('txManager', () => ({
   privateKey: process.env.PRIVATE_KEY,
-  rpcUrl: process.env.RPC_URL,
+  rpcUrl: RPC_LIST[process.env.CHAIN_ID],
   config: {
-    CONFIRMATIONS: '4',
-    MAX_GAS_PRICE: '100',
     THROW_ON_REVERT: false,
+    CONFIRMATIONS: process.env.CONFIRMATIONS,
+    MAX_GAS_PRICE: process.env.MAX_GAS_PRICE,
   },
 }));
diff --git a/src/constants/variables.ts b/src/constants/variables.ts
index dfceb89..034cd97 100644
--- a/src/constants/variables.ts
+++ b/src/constants/variables.ts
@@ -1,4 +1,20 @@
 import { BigNumber } from 'ethers';
+import { ChainId } from '@/types';
+
+const NETWORKS_INFO: { [chainId in ChainId] } = {
+  [ChainId.MAINNET]: {
+    gasLimit: BigNumber.from(600000),
+    minimumBalance: 0.5,
+  },
+  [ChainId.GOERLI]: {
+    gasLimit: BigNumber.from(600000),
+    minimumBalance: 0.5,
+  },
+  [ChainId.OPTIMISM]: {
+    gasLimit: '',
+    minimumBalance: 0.5,
+  },
+};
 
 const numbers = {
   ZERO: 0,
@@ -10,10 +26,8 @@ const numbers = {
 };
 
 const BG_ZERO = BigNumber.from(numbers.ZERO);
-const FIELD_SIZE = BigNumber.from(
-  '21888242871839275222246405745257275088548364400416034343698204186575808495617',
-);
+const FIELD_SIZE = BigNumber.from('21888242871839275222246405745257275088548364400416034343698204186575808495617');
 
 const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
 
-export { numbers, FIELD_SIZE, BG_ZERO, ZERO_ADDRESS };
+export { numbers, NETWORKS_INFO, FIELD_SIZE, BG_ZERO, ZERO_ADDRESS };
diff --git a/src/modules/queue/withdrawal.processor.ts b/src/modules/queue/withdrawal.processor.ts
index 2cf9be1..9db7604 100644
--- a/src/modules/queue/withdrawal.processor.ts
+++ b/src/modules/queue/withdrawal.processor.ts
@@ -91,7 +91,7 @@ export class WithdrawalProcessor extends BaseProcessor<Withdrawal> {
   }
 
   async prepareTransaction({ proof, args }) {
-    const chainId = this.configService.get('base.chainId');
+    const { chainId, address } = this.configService.get('base');
 
     const contract = this.providerService.getTornadoPool();
 
@@ -104,8 +104,8 @@ export class WithdrawalProcessor extends BaseProcessor<Withdrawal> {
     if (chainId === ChainId.OPTIMISM) {
       // @ts-ignore
       gasLimit = await contract.estimateGas.transaction(proof, ...args, {
+        from: address,
         value: BigNumber.from(0)._hex,
-        from: '0x1a5245ea5210C3B57B7Cfdf965990e63534A7b52',
         gasPrice: toWei('0.015', 'gwei'),
       });
     }