A quick how-to create and access secrets using the 1Password CLI:

Install:

brew install 1password-cli

Create new vault:

op vault create CLI

Upload Secret:

op item create \
 --vault "CLI" \
 --category "API Credential" \
 --title "GH_Token" \
         "gh.GITHUB_TOKEN[password]=ghp_xyz"

Create the .env:

export GITHUB_TOKEN=$(op read "op://CLI/GH_Token/GITHUB_TOKEN")

Source the .env:

source .env