{ boot = { grubDevice = "/dev/sda"; }; fileSystems = [ { mountPoint = "/"; device = "/dev/sda1"; } ]; services = { sshd = { enable = true; }; httpd = { enable = true; experimental = true; adminAddr = "admin@example.org"; subservices = { subversion = { enable = true; dataDir = "/data/subversion"; notificationSender = "svn@example.org"; }; }; }; }; }