HashiCorp, a company known for its cloud infrastructure tools, has released a series of hands-on tutorials for its conferences, including Consul, Terraform, Vault, and Nomad. These tutorials are designed to be interactive and provide a step-by-step guide on how to use these tools in a production environment. The tutorials cover various topics such as secure applications with service sidecar proxies, enforcing zero-trust networks, managing secrets with Vault, running applications with Nomad, and more. The tutorials are available for free on the HashiCorp Learn platform and can be accessed at any time.