When using the NixOS module we cannot guarantee that the Nix store
will be writable during startup. Installing the user packages through
`nix-env -i` will fail in these cases.
This commit adds a NixOS option `home-manager.useUserPackages` that,
when enabled, installs user packages through the NixOS
users.users.<name?>.packages
option.
Note, when submodule support and external package install is enabled
then the installed packages are not available in `~/.nix-profile`. We
therefore set `home.profileDirectory` directly to the HM profile
packages.
This commit adds the tmux program to Home Manager.
In addition to configuring tmux, a user may specify tmux plugins from
Nixpkgs. These can be included in the list of `plugins` and can either
be a package (all tmux plugins live under `nixpkgs.tmuxPlugins.*`), or
an object which includes the plugin and an `extraConfig`, which will
be run immediately after sourcing the tmux plugin.
Finally, this commit introduces two nested programs which may be
enabled which depend on tmux: tmuxp and tmuxinator. These do not have
the ability to be configured, although this may be a future
contribution.
This adds a general module infrastructure for configuring email
accounts. The intent is to specify high level information such as IMAP
and SMTP hostnames and login information so that more specific program
and service modules do not have to duplicate options for specifying
accounts.
It is allowed for modules to inject further options within this
namespace where relevant. For example, an MUA may wish add an option
to add per-account filter rules.
Co-authored-by: Matthieu Coudron <mattator@gmail.com>