This is the full list of official Builders provided by the ZEIT team.
More details here: https://zeit.co/docs/v2/deployments/builders/overview/
Run the following command to publish modified builders to npm:
For the stable channel use:
yarn publish-stable
For the canary channel use:
yarn publish-canary
CircleCI will take care of publishing the updated packages to npm from there.
If for some reason CircleCI fails to publish the npm package, you may do so
manually by running npm publish from the package directory. Make sure to
include the --tag canary parameter if you are publishing a canary release!