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+# nixos-rebuild
+
+> Reconfigure a NixOS machine.
+> Documentation: <https://nixos.org/nixos/manual/#sec-changing-config>.
+
+- Build and switch to the new configuration, making it the boot default:
+
+`sudo nixos-rebuild switch`
+
+- Build and switch to the new configuration, making it the boot default and naming the boot entry:
+
+`sudo nixos-rebuild switch -p {{name}}`
+
+- Build and switch to the new configuration, making it the boot default and installing updates:
+
+`sudo nixos-rebuild switch --upgrade`
+
+- Rollback changes to the configuration, switching to the previous generation:
+
+`sudo nixos-rebuild switch --rollback`
+
+- Build the new configuration and make it the boot default without switching to it:
+
+`sudo nixos-rebuild boot`
+
+- Build and activate the new configuration, but don't make a boot entry (for testing purposes):
+
+`sudo nixos-rebuild test`
+
+- Build the configuration and open it in a virtual machine:
+
+`sudo nixos-rebuild build-vm`