Installing Home Manager
Home Manager can be used in three primary ways:
Using the standalone home-manager tool. For platforms
other than NixOS and Darwin, this is the only available choice. It is also
recommended for people on NixOS or Darwin that want to manage their home
directory independent of the system as a whole. See
for instructions on how to
perform this installation.
As a module within a NixOS system configuration. This allows the user
profiles to be built together with the system when running
nixos-rebuild. See
for a description of this
setup.
As a module within a
nix-darwin
system configuration. This allows the user profiles to be built together
with the system when running darwin-rebuild. See
for a description of this
setup.
Standalone installation
Make sure you have a working Nix installation. If you are not using NixOS
then it may be necessary to run
$mkdir -m 0755 -p /nix/var/nix/{profiles,gcroots}/per-user/$USER
since Home Manager uses these directories to manage your profile
generations. On NixOS these should already be available.
Also make sure that your user is able to build and install Nix packages.
For example, you should be able to successfully run a command like
nix-instantiate '<nixpkgs>' -A hello without
having to switch to the root user. For a multi-user install of Nix this
means that your user must be covered by the
allowed-users
Nix option. On NixOS you can control this option using the
nix.allowedUsers
system option.
Add the Home Manager channel that you wish to follow. This is done by
running
$nix-channel --add https://github.com/rycee/home-manager/archive/master.tar.gz home-manager$nix-channel --update
if you are following Nixpkgs master or an unstable channel and
$nix-channel --add https://github.com/rycee/home-manager/archive/release-19.09.tar.gz home-manager$nix-channel --update
if you follow a Nixpkgs version 19.09 channel.
On NixOS you may need to log out and back in for the channel to become
available. On non-NixOS you may have to add
export NIX_PATH=$HOME/.nix-defexpr/channels${NIX_PATH:+:}$NIX_PATH
to your shell (see
nix#2033).
Run the Home Manager installation command and create the first Home
Manager generation:
$nix-shell '<home-manager>' -A install
Once finished, Home Manager should be active and available in your user
environment.
If you do not plan on having Home Manager manage your shell configuration
then you must source the
$HOME/.nix-profile/etc/profile.d/hm-session-vars.sh
file in your shell configuration. Unfortunately, we currently only support
POSIX.2-like shells such as
Bash or
Z shell.
For example, if you use Bash then add
. "$HOME/.nix-profile/etc/profile.d/hm-session-vars.sh"
to your ~/.profile file.
If instead of using channels you want to run Home Manager from a Git
checkout of the repository then you can use the
programs.home-manager.path option to specify the absolute
path to the repository.
NixOS module
Home Manager provides a NixOS module that allows you to prepare user
environments directly from the system configuration file, which often is
more convenient than using the home-manager tool. It also
opens up additional possibilities, for example, to automatically configure
user environments in NixOS declarative containers or on systems deployed
through NixOps.
To make the NixOS module available for use you must
it into your system configuration. This is most conveniently done by adding
a Home Manager channel, for example
#nix-channel --add https://github.com/rycee/home-manager/archive/master.tar.gz home-manager#nix-channel --update
if you are following Nixpkgs master or an unstable channel and
#nix-channel --add https://github.com/rycee/home-manager/archive/release-19.09.tar.gz home-manager#nix-channel --update
if you follow a Nixpkgs version 19.09 channel.
It is then possible to add
imports = [ <home-manager/nixos> ];
to your system configuration.nix file, which will
introduce a new NixOS option called
whose type is an attribute set that maps user names to Home Manager
configurations.
For example, a NixOS configuration may include the lines
users.users.eve.isNormalUser = true;
home-manager.users.eve = { pkgs, ... }: {
home.packages = [ pkgs.atool pkgs.httpie ];
programs.bash.enable = true;
};
and after a nixos-rebuild switch the user eve's
environment should include a basic Bash configuration and the packages atool
and httpie.
By default packages will be installed to
$HOME/.nix-profile but they can be installed to
/etc/profiles if
home-manager.useUserPackages = true;
is added to the system configuration. This is necessary if, for example,
you wish to use nixos-rebuildĀ build-vm. This option may
become the default value in the future.
By default, Home Manager uses a private pkgs instance
that is configured via the options.
To instead use the global pkgs that is configured via
the system level options, set
home-manager.useGlobalPkgs = true;
This saves an extra Nixpkgs evaluation, adds consistency, and removes the
dependency on NIX_PATH, which is otherwise used for
importing Nixpkgs.
nix-darwin module
Home Manager provides a module that allows you to prepare user
environments directly from the nix-darwin configuration file, which often is
more convenient than using the home-manager tool.
To make the NixOS module available for use you must
it into your system configuration. This is most conveniently done by adding
a Home Manager channel, for example
#nix-channel --add https://github.com/rycee/home-manager/archive/master.tar.gz home-manager#nix-channel --update
if you are following Nixpkgs master or an unstable channel and
#nix-channel --add https://github.com/rycee/home-manager/archive/release-19.09.tar.gz home-manager#nix-channel --update
if you follow a Nixpkgs version 19.09 channel.
It is then possible to add
imports = [ <home-manager/nix-darwin> ];
to your nix-darwin configuration.nix file, which will
introduce a new NixOS option called whose type
is an attribute set that maps user names to Home Manager configurations.
For example, a nix-darwin configuration may include the lines
home-manager.users.eve = { pkgs, ... }: {
home.packages = [ pkgs.atool pkgs.httpie ];
programs.bash.enable = true;
};
and after a darwin-rebuild --switch the user eve's
environment should include a basic Bash configuration and the packages atool
and httpie.
By default user packages will not be ignored in favor of
, but they will be intalled to
if
home-manager.useUserPackages = true;
is added to the nix-darwin configuration. This option may become the default
value in the future.