diff --git a/README.md b/README.md
index 25d4819..702f5f0 100644
--- a/README.md
+++ b/README.md
@@ -6,12 +6,12 @@
 * ERC-721 smart contract
 * Adheres to strict [NFT provenance best-practices](https://link.medium.com/LJjFKB999lb)
 * SEO optimised responsive site
-* Allows "lazy minting" (offer NFTs without pre-minting them; buyer pays gas to mint)
+* Allows "lazy minting" (offer NFTs without pre-minting, buyer pays gas)
 * Shows links to Opensea & Rarible for secondary sales
-* Re-assignable role for catalog management
+* Re-assignable role for catalog management / minting
 * Configurable revenue shares
-* Configurable royalty
-* Deployable on any EVM blockchain (Ethereum, Polygon, Arbitrum, etc)
+* Configurable royalty rate
+* Deployable on any EVM blockchain (Ethereum, Polygon, Arbitrum, ...)
 
 See example deployments on these testnets:
 - [Ethereum (Rinkeby testnet)](https://nft-surface.vercel.app/)
@@ -51,7 +51,7 @@ The repo currently has the details for these chains:
 * Polygon Testnet
 * Arbitrum Rinkeby Testnet
 
-To add other chains, add their details in the following files, following the pattern for the already-implemented chains:
+To support other chains, add their details in the following files, following the pattern for the already-implemented chains:
 ```
 client/utils/chain-spec.js
 smart-contract/hardhat.config.js
diff --git a/smart-contract/README.md b/smart-contract/README.md
index 68fd496..e76775e 100644
--- a/smart-contract/README.md
+++ b/smart-contract/README.md
@@ -24,16 +24,22 @@ Expects the below `.env` file in the directory `smart-contract`. IMPORTANT: this
 
 ```
 # For the "deploy" task, private key of the contract deployer, who is ideally also the creator (see below). For "catalog" or "sign" tasks following a deploy, private key of "agent" role.
-SIGNER_PRIVATE_KEY = "...
+SIGNER_PRIVATE_KEY = "..."
 
 # The address of the creator/artist/maker/brand. This is added to the catalog and the metadata files on IPFS. 
-CREATOR_ADDRESS    = "..."
-
-# For Rinkeby network deployments 
-RINKEBY_API_URL    = "..."
-
-# For Mainnet network deployments 
-MAINNET_API_URL    = "..."
+CREATOR_ADDRESS = "..."
+
+# NETWORKS 
+# Be sure to uncomment (or add) relevant lines in hardhat.config.js 
+# depending on which network you are deploying to. 
+# Rinkeby deployments 
+RINKEBY_API_URL = "..."
+# Mumbai deployments 
+MUMBAI_API_URL = "..."
+# Rinkeby deployments 
+ARB_RINKEBY_API_URL = "..."
+# OTHER deployments: 
+# add variables here and modify hardhat.config.js to pick them up.
 
 # For verifying contracts on Etherscan (mainnets and testnets on Etherem/Polygon/...) 
 ETHERSCAN_API_KEY  = "..."
diff --git a/smart-contract/hardhat.config.js b/smart-contract/hardhat.config.js
index 2883518..68f52f6 100644
--- a/smart-contract/hardhat.config.js
+++ b/smart-contract/hardhat.config.js
@@ -7,9 +7,9 @@ require('@openzeppelin/hardhat-upgrades');
 const {
 	CREATOR_ADDRESS,
 	SIGNER_PRIVATE_KEY,
-	RINKEBY_API_URL,
-	MUMBAI_API_URL,
-	ARB_RINKEBY_API_URL,
+	//RINKEBY_API_URL,
+	//MUMBAI_API_URL,
+	//ARB_RINKEBY_API_URL,
 	ETHERSCAN_API_KEY,
 	POLYGONSCAN_API_KEY,
 	PINATA_API_KEY,
@@ -23,6 +23,7 @@ module.exports = {
 	defaultNetwork: "hardhat",
 	networks: {
 		hardhat: {},
+		/*
 		rinkeby: {
 			url: RINKEBY_API_URL,
 			accounts: [`0x${SIGNER_PRIVATE_KEY}`]
@@ -37,6 +38,7 @@ module.exports = {
 			url: ARB_RINKEBY_API_URL,
 			accounts: [`0x${SIGNER_PRIVATE_KEY}`]
 		}
+		*/
 	},
 	etherscan: {
 		apiKey: ETHERSCAN_API_KEY