Adding SMB3 to a NixOS client Samba recently gained support for the POSIX Extensions for SMB3 which add some features you’d expect from a Linux filesystem, like symbolic links. These are different from SMB1 Unix extensions. They were introduced in Samba 4.23, which by now is in Nixpkgs. Here’s a quick write-up on how to use them. Note that this isn’t a full SMB on NixOS tutorial, you can just consult the wiki for that.