diff --git a/txtx.yml b/txtx.yml
index e0573ef..df9ce16 100644
--- a/txtx.yml
+++ b/txtx.yml
@@ -79,4 +79,50 @@ environments:
     recovery_proxy_owner_address: 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266 
     # ID registry params
     # Default address is Anvil test account 1
-    id_registry_owner_address: 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266 
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+  # Mainnet environment variables. Execute a Runbook with these variables with `txtx run <runbook-id> --env mainnet`
+  mainnet:
+    deployer_secret_key: 
+    deployer_address: 
+    operator_address: 
+    immutable_create2_factory_address: 0x0000000000FFe8B47B3e2130213B802212439497
+    # Network params
+    l1_rpc_api_url: 
+    l1_chain_id: 1
+    l2_rpc_api_url: 
+    l2_chain_id: 10
+    # FNAME resolver params
+    fname_resolver_server_url: https://fnames.farcaster.xyz/ccip/{sender}/{data}.json
+    fname_resolver_signer_address: 0xBc5274eFc266311015793d89E9B591fa46294741
+    fname_resolver_owner_address: 0x138356f24c7A16BE48978dE277a468F6C16A19a5
+    fname_resolver_create2_salt: 0x0000000000000000000000000000000000000000000000000000000000000000
+    # L2 deployment salts
+    storage_rent_create2_salt: 0x6d2b70e39c6bc63763098e336323591eb77cd0c65360d99ba6ea4e0161f2b96c
+    id_registry_create2_salt: 0x6d2b70e39c6bc63763098e336323591eb77cd0c63e0688f6d95afa008febf4d7
+    id_gateway_create2_salt: 0x0000000000000000000000000000000000000000000000000000000000000000
+    key_registry_create2_salt: 0x6d2b70e39c6bc63763098e336323591eb77cd0c62af4de6e1f0355029f357f47
+    key_gateway_create2_salt: 0x0000000000000000000000000000000000000000000000000000000000000000
+    signed_key_request_validator_create2_salt: 0x6d2b70e39c6bc63763098e336323591eb77cd0c6610c0841333604016684800c
+    bundler_create2_salt: 0x6d2b70e39c6bc63763098e336323591eb77cd0c6e451fc0a34ec4c008c9a31fa
+    recovery_proxy_create2_salt: 0x6d2b70e39c6bc63763098e336323591eb77cd0c6110eaaca06f77900dac1cad3
+    # Price feed addresses
+    # These defaults are the Optimism mainnet addresses.
+    storage_rent_price_feed_address: 0x13e3ee699d1909e989722e753853ae30b17e08c5
+    storage_rent_uptime_feed_address: 0x371EAD81c9102C9BF4874A9075FFFf170F2Ee389
+    # Storage rent params
+    storage_rent_role_admin_address: 0x53c6dA835c777AD11159198FBe11f95E5eE6B692
+    storage_rent_vault_address: 0x53c6dA835c777AD11159198FBe11f95E5eE6B692
+    storage_rent_admin_address: 0xD84E32224A249A575A09672Da9cb58C381C4837a
+    storage_rent_operator_address: 0x0000000000000000000000000000000000000000
+    storage_rent_treasurer_address: 0x0000000000000000000000000000000000000000
+    # Deployer address
+    deployer: 0x6D2b70e39C6bc63763098e336323591eb77Cd0C6
+    # Migrator address
+    migrator_address: 0x2D93c2F74b2C4697f9ea85D0450148AA45D4D5a2
+    # Key registry params
+    key_registry_owner_address: 0x2D93c2F74b2C4697f9ea85D0450148AA45D4D5a2
+    # Metadata validator params
+    metadata_validator_owner_address: 0x53c6dA835c777AD11159198FBe11f95E5eE6B692
+    # RecoveryProxy params
+    recovery_proxy_owner_address: 0xFFE52568Fb0E7038Ef289677288BB704E5c9E82e
+    # ID registry params
+    id_registry_owner_address: 0x53c6dA835c777AD11159198FBe11f95E5eE6B692
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