diff --git a/.env.example b/.env.example
index 544d02d..ded86c3 100644
--- a/.env.example
+++ b/.env.example
@@ -4,11 +4,11 @@
 # DEPLOYMENT CONFIGURATION
 # ================================
 
-# Deployer's private key (used for contract deployment)
+# Private key (used for deployment and oracle operations)
 # IMPORTANT: This should be a funded account with enough ETH for gas
 # NEVER commit your real private key!
 # The key below is from Anvil's default accounts - DO NOT USE IN PRODUCTION
-DEPLOYER_PRIVATE_KEY=0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80
+PRIVATE_KEY=0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80
 
 # ================================
 # ORACLE CONFIGURATION
@@ -21,12 +21,6 @@ DEPLOYER_PRIVATE_KEY=0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf
 #   Mainnet:  https://mainnet.infura.io/v3/YOUR-INFURA-KEY
 RPC_URL=http://localhost:8545
 
-# Oracle operator's private key (required for oracle)
-# This account submits arbitration decisions on-chain
-# IMPORTANT: Ensure this account has sufficient ETH for gas!
-# The key below is from Anvil's default accounts - DO NOT USE IN PRODUCTION
-PRIVATE_KEY=0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d
-
 # EAS (Ethereum Attestation Service) Contract Address (optional)
 # If you used the deploy script, get this from deployments/<network>.json
 # EAS_CONTRACT_ADDRESS=0x...
diff --git a/README.md b/README.md
index 36f7214..23c1790 100644
--- a/README.md
+++ b/README.md
@@ -179,7 +179,6 @@ nla escrow:collect \
 ```bash
 # 1. Get Sepolia ETH from faucet
 # 2. Set your keys
-export DEPLOYER_PRIVATE_KEY=0x...
 export PRIVATE_KEY=0x...
 export OPENAI_API_KEY=sk-...
 
@@ -194,7 +193,6 @@ nla start-oracle sepolia
 
 ```bash
 # ⚠️ PRODUCTION - Be careful!
-export DEPLOYER_PRIVATE_KEY=0x...
 export PRIVATE_KEY=0x...
 export OPENAI_API_KEY=sk-...
 
diff --git a/cli/server/deploy.ts b/cli/server/deploy.ts
index 4bca840..5cc57bb 100644
--- a/cli/server/deploy.ts
+++ b/cli/server/deploy.ts
@@ -13,6 +13,7 @@ import { mainnet, sepolia, baseSepolia, foundry } from "viem/chains";
 import { writeFileSync, existsSync, mkdirSync } from "fs";
 import { resolve } from "path";
 import { fixtures, contracts } from "alkahest-ts";
+import { getPrivateKey } from "../utils.js";
 
 // Helper function to display usage
 function displayHelp() {
@@ -30,7 +31,7 @@ Options:
   --help, -h                   Display this help message
 
 Environment Variables (alternative to CLI options):
-  DEPLOYER_PRIVATE_KEY         Deployer's private key
+  PRIVATE_KEY                  Deployer's private key
   RPC_URL                      Custom RPC URL
 
 Networks:
@@ -47,7 +48,7 @@ Examples:
   bun deploy.ts --network sepolia --private-key 0x... --rpc-url https://sepolia.infura.io/v3/YOUR-KEY
 
   # Using environment variables
-  export DEPLOYER_PRIVATE_KEY=0x...
+  export PRIVATE_KEY=0x...
   bun deploy.ts --network localhost
 `);
 }
@@ -98,7 +99,7 @@ async function main() {
 
         // Get configuration
         const network = args.network;
-        const privateKey = args["private-key"] || process.env.DEPLOYER_PRIVATE_KEY;
+        const privateKey = args["private-key"] || getPrivateKey();
         let rpcUrl = args["rpc-url"] || process.env.RPC_URL;
 
         // Validate required parameters
@@ -109,8 +110,12 @@ async function main() {
         }
 
         if (!privateKey) {
-            console.error("❌ Error: Private key is required. Use --private-key or set DEPLOYER_PRIVATE_KEY");
-            console.error("Run with --help for usage information.");
+            console.error("❌ Error: Private key is required.");
+            console.error("\n💡 You can either:");
+            console.error("   1. Set it globally: nla wallet:set --private-key <your-key>");
+            console.error("   2. Use for this command only: --private-key <your-key>");
+            console.error("   3. Set PRIVATE_KEY environment variable");
+            console.error("\nRun with --help for usage information.");
             process.exit(1);
         }