packages.aeronsystems.com: Aeron's private npm registry for @aeron-systems/*.

In a repository's .npmrc:
  @aeron-systems:registry=https://packages.aeronsystems.com
  //packages.aeronsystems.com/:_authToken=${NODE_AUTH_TOKEN}

NODE_AUTH_TOKEN is not a stored secret. It is:
  on a laptop        your GitHub login:  export NODE_AUTH_TOKEN=$(gh auth token)
  in GitHub Actions  the job's own GITHUB_TOKEN
  on Vercel          the build's own identity: NODE_AUTH_TOKEN=$VERCEL_OIDC_TOKEN
Every download is logged. Full instructions: the README in aeron-systems/hydron, cloudflare/packages.