The speaker discussed the use of containers for remote attestation in security. They explained the boot chain process and the potential vulnerabilities at each step. They introduced the idea of using a remote attestation server to check that the measurements are what's expected. They presented a user-friendly, lightweight TPM remote attestation running over Bluetooth with a client running on a phone and a server on a laptop. They demonstrated the use of the software in a virtual machine and answered questions from the audience. The speaker considered the software not yet production grade but hoped it would be adopted by more people outside of their agency. Some distributions have expressed interest in using Ultra Blue.