[$] Passwordless authentication with FIDO2—beyond just the web

FIDO2 is a standard forauthenticating users without the need for passwords. While the technology hasbeen introduced mainly to protect accounts on web sites, it's also usefulfor other purposes, such as logging into Linux systems. The same technologycan even be used beyond authentication, for example to sign files or Gitcommits. A couple of talks at FOSDEM2023 in Brussels presented the possibilities for Linux users.