This patch add a new argument to Nixpkgs default expression named "overlays".
By default, the value of the argument is either taken from the environment variable `NIXPKGS_OVERLAYS`,
or from the directory `~/.nixpkgs/overlays/`. If the environment variable does not name a valid directory
then this mechanism would fallback on the home directory. If the home directory does not exists it will
fallback on an empty list of overlays.
The overlays directory should contain the list of extra Nixpkgs stages which would be used to extend the
content of Nixpkgs, with additional set of packages. The overlays, i-e directory, files, symbolic links
are used in alphabetical order.
The simplest overlay which extends Nixpkgs with nothing looks like:
```nix
self: super: {
}
```
More refined overlays can use `super` as the basis for building new packages, and `self` as a way to query
the final result of the fix-point.
An example of overlay which extends Nixpkgs with a small set of packages can be found at:
https://github.com/nbp/nixpkgs-mozilla/blob/nixpkgs-overlay/moz-overlay.nix
To use this file, checkout the repository and add a symbolic link to
the `moz-overlay.nix` file in `~/.nixpkgs/overlays` directory.
This adds pulseaudio.daemon.config, which is a set of keys to values
which are directly translated to keys and values of pulseaudio's
daemon.conf, e. g.
hardware.pulseaudio.daemon.config = { flat-volumes = "no"; }
becomes
flat-volumes=no
in pulse/daemon.conf.
The reason being less mental overhead when reading upstream
documentation. Examples can be pasted right into the configuration
instead of translating to Nix attrset first.
Make sure that the output of the sieve compiler produces files that
have a newer time stamp than the source sieve script. Otherwise you
get errors in the logs about Dovecot not being able to compile do to a
permission issue.
ckb is a driver for Corsair keyboards/mice. It also contains a graphical tool for configuring their LED backlight settings.
The driver is implemented as a userland daemon. A NixOS module is included that runs this as a systemd service.
The content of programs.zsh.interactiveShellInit was
inserted too soon in the generated zshrc
This caused some settings related to autocompletion to be ignored
This reverts commit 712e62c260.
This commit broke NixOS containers. Systemd wouldn't detect if a container
started successfully and would kill it again after a grace period.
Additionally this prints mount errors due to already mounted filesystems
at boot.
