Today morning, I was building an AMD SEV virtual machine from source. It requires TianoCore/edk2, “the reference implementation of UEFI by Intel”. While the build script cloned SubhookLib/subhook, I was asked for a Github username and password: This set off alarm bells. After a quick search through the issues in AMD SEV’s repository leading to no result, I decided to go through edk2’s code. In particular, the .gitmodules file: ... [submodule "