We use OAuth 2.0 to access your information from GitHub. That way we don't have to store any sensitive data and you don't need an extra account. In production this works great. During development it makes our lives harder because GitHub needs access to our machines. We solve this problem by mocking all OAuth related networks requests to generate a fake token. This token won't give you access to the GitHub API so we also have to stub those requests.
Having benchmarks for your critical code paths ensures stable performance and protection against accidental changes. However benchmarks are usually only done once and never run continuously. Learn how to keep an eye on your benchmarks over time.
Code coverage is a first class citizen in Go. However programmatically getting the total code coverage for multiple packages within a single project can be tricky. Learn how to retrieve the overall code coverage by using standard Unix command line tools like grep and awk connected via pipes.