We're going to get a local wasmd
blockchain going, so we'll install that according to these instructions (after cloning the repo):
https://github.com/CosmWasm/wasmd#quick-start
It's not a bad idea to create a new account in Keplr for testnet. We can use that seed phrase to store the same private key on your file system, securly via the operating system. What I mean by that is Mac users will see this when trying to use an app that wants to access it.
After you create an account on Keplr, you can find the mnemonic here: