Add dotenv to avoid network errors upon setup #81
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Problem:
In its current state, this repo lets users launch the setup script by invoking
./scripts/setup.ts
withPRIVATE_KEY="0xYourPrivateKey" L2_RPC_URL="<https://sepolia-rollup.arbitrum.io/rpc>" L3_RPC_URL="http://localhost:8449" yarn run setup
.This can lead to errors if the user mistypes the
L2_RPC_URL
orL3_RPC_URL
(my scripts failed even with the correct URLs).This PR is an attempt at solving the problem by adding a
.env-example
file and adotenv
integration.