100GB breaks cptofs but 50GB is fine and benchmarks shows it takes the same time as building the demo VBox VM with a 10GB disk
+ enabled VM sound output by default
+ set USB controller in USB2.0 mode
+ add manifest file in the OVA as it allows integrity checking on imports
* journald: forward message to syslog by default if a syslog implementation is installed
* added a test to ensure rsyslog is receiving messages when expected
* added rsyslogd tests to release.nix
The nixos-manual service already uses w3m-nographics for a variant that
drops unnecessary junk like various image libraries.
iso_minimal closure (i.e. uncompressed) goes from 1884M -> 1837M.
The changes were found by executing the following in the strongswan
repo (https://github.com/strongswan/strongswan):
git diff 5.6.3..5.7.1 src/swanctl/swanctl.opt
Rootston is just a reference compositor so it doesn't make that much
sense to have a module for it. Upstream doesn't really like it as well:
"Rootston will never be intended for downstream packages, it's an
internal thing we use for testing." - SirCmpwn [0]
Removing the package and the module shouldn't cause much problems
because it was marked as broken until
886131c243. If required the package can
still be accessed via wlroots.bin (could be useful for testing
purposes).
[0]: https://github.com/NixOS/nixpkgs/issues/38344#issuecomment-378449256
* Lets container@.service be activated by machines.target instead of
multi-user.target
According to the systemd manpages, all containers that are registered
by machinectl, should be inside machines.target for easy stopping
and starting container units altogether
* make sure container@.service and container.slice instances are
actually located in machine.slice
https://plus.google.com/112206451048767236518/posts/SYAueyXHeEX
See original commit: https://github.com/NixOS/systemd/commit/45d383a3b8
* Enable Cgroup delegation for nixos-containers
Delegate=yes should be set for container scopes where a systemd instance
inside the container shall manage the hierarchies below its own cgroup
and have access to all controllers.
This is equivalent to enabling all accounting options on the systemd
process inside the system container. This means that systemd inside
the container is responsible for managing Cgroup resources for
unit files that enable accounting options inside. Without this
option, units that make use of cgroup features within system
containers might misbehave
See original commit: https://github.com/NixOS/systemd/commit/a931ad47a8
from the manpage:
Turns on delegation of further resource control partitioning to
processes of the unit. Units where this is enabled may create and
manage their own private subhierarchy of control groups below the
control group of the unit itself. For unprivileged services (i.e.
those using the User= setting) the unit's control group will be made
accessible to the relevant user. When enabled the service manager
will refrain from manipulating control groups or moving processes
below the unit's control group, so that a clear concept of ownership
is established: the control group tree above the unit's control
group (i.e. towards the root control group) is owned and managed by
the service manager of the host, while the control group tree below
the unit's control group is owned and managed by the unit itself.
Takes either a boolean argument or a list of control group
controller names. If true, delegation is turned on, and all
supported controllers are enabled for the unit, making them
available to the unit's processes for management. If false,
delegation is turned off entirely (and no additional controllers are
enabled). If set to a list of controllers, delegation is turned on,
and the specified controllers are enabled for the unit. Note that
additional controllers than the ones specified might be made
available as well, depending on configuration of the containing
slice unit or other units contained in it. Note that assigning the
empty string will enable delegation, but reset the list of
controllers, all assignments prior to this will have no effect.
Defaults to false.
Note that controller delegation to less privileged code is only safe
on the unified control group hierarchy. Accordingly, access to the
specified controllers will not be granted to unprivileged services
on the legacy hierarchy, even when requested.
The following controller names may be specified: cpu, cpuacct, io,
blkio, memory, devices, pids. Not all of these controllers are
available on all kernels however, and some are specific to the
unified hierarchy while others are specific to the legacy hierarchy.
Also note that the kernel might support further controllers, which
aren't covered here yet as delegation is either not supported at all
for them or not defined cleanly.
In this update:
* binaries `ckb` and `ckb-daemon` are renamed to `ckb-next` and `ckb-next-daemon`
* build system changed from qmake to cmake
* the directory searched for animation plugins no longer needs to be patched, as a result of the build system change
* modprobe patch has been bumped, since the source repository layout has changed
* the cmake scripts are quite FHS-centric and require patching to fix install locations
"machine.target" doesn't actually exist, it's misspelled version
of "machines.target". However, the "systemd-nspawn@.service"
unit already has a default dependency on "machines.target"
This was overlooked on a rebase of mine on master, when I didn't realize
that in the time of me writing the znc changes this new option got
introduced.
On AMD hardware with Mesa 18, compton renders some colours incorrectly
when using the glx backend. This patch sets an environmental variable
for compton so colours are rendered correctly.
Topical bug: <https://bugs.freedesktop.org/show_bug.cgi?id=104597>
This breaks with networking backends enabled and
also creates large delays on boot when some services depends
on the network target. It is also not really required
because tinc does create those interfaces itself.
fixes #27070
Tor requires ``SOCKSPort 0`` when non-anonymous hidden services are
enabled. If the configuration doesn't enable Tor client features,
generate a configuration file that explicitly includes this disabling
to allow such non-anonymous hidden services to be created (note that
doing so still requires additional configuration). See #48622.
* nat/bind/dhcp.service:
Remove. Those services have nothing to do with a link-level service.
* sys-subsystem-net-devices-${if}.device:
Add as BindsTo dependency as this will make hostapd stop when the
device is unplugged.
* network-link-${if}.service:
Add hostapd as dependency for this service via requiredBy clause,
so that the network link is only considered to be established
only after hostapd has started.
* network.target:
Remove this from wantedBy clause as this is already implied from
dependencies stacked above hostapd. And if it's not implied than
starting hostapd is not required for this particular network
configuration.
This reverts commit 10addad603, reversing
changes made to 7786575c6c.
NixOS scripts should be kept in the NixOS source tree, not in
pkgs. Moving them around is just confusing and creates unnecessary
code/history churn.
Move all the nixos-* scripts from the nixos distribution as real
packages in the pkgs/ package set.
This allows non-nixos users to run the script as well. For example,
deploying a remote machine with:
nixos-rebuild --target-host root@hostname --build-host root@hostname
A module for security options that are too small to warrant their own module.
The impetus for adding this module is to make it more convenient to override
the behavior of the hardened profile wrt user namespaces.
Without a dedicated option for user namespaces, the user needs to
1) know which sysctl knob controls userns
2) know how large a value the sysctl knob needs to allow e.g.,
Nix sandbox builds to work
In the future, other mitigations currently enabled by the hardened profile may
be promoted to options in this module.
This option represents the ZNC configuration as a Nix value. It will be
converted to a syntactically valid file. This provides:
- Flexibility: Any ZNC option can be used
- Modularity: These values can be set from any NixOS module and will be
merged correctly
- Overridability: Default values can be overridden
Also done:
Remove unused/unneeded options, mkRemovedOptionModule unfortunately doesn't work
inside submodules (yet). The options userName and modulePackages were never used
to begin with
The system variable is used from the (possibly polluted) shell
environment.
This causes nixos-install to fail in a nix-shell because the system
shell variable is automatically set to the current system (e.g.
x86_64-linux).
- added package option to specify which version of redmine
- added themes option back in to allow specifying redmine themes
- added plugins option back in to allow specifying redmine plugins
- added database.socket option to allow mysql unix socket authentication
- added port option to allow specifying the port rails runs on
- cleaned up Gemfile so it is much less hacky
- switched to ruby version 2.4 by default as suggested by documentation http://www.redmine.org/projects/redmine/wiki/redmineinstall#Installing-Redmine
- fixed an annoyance (bug) in the service causing recursive symlinks
- fixed ownership bug on log files generated by redmine
- updates reflecting renames in nixos options
- added a nixos test
Dummy display manager that allows running X as a normal user.
The X server is started manually from a vt using `startx`.
Session startup commands must be provided by the user
in ~/.xinitrc, which is NOT automatically generated.
Previously you either had to set the setuid bit yourself or workaround
`isSystemUser = true` (for a loginable shell) to access the weechat
screen.
`programs.screen` shouldn't do this by default to avoid taking too much
assumptions about the setup, however `services.weechat` explicitly
requires tihs.
See #45728
Included changes:
* upstream repository has moved, URLs changed accordingly
* journaldriver bumped to new upstream release
The new release includes an important workaround for an issue that
could cause log-forwarding to fail after service restarts due to
invalid journal cursors being persisted.
This patch uses the library function `lib.escapeShellArg` to improve
the handling of shell aliases in the NixOS module `bash`, copying the
corresponding change made to the `zsh` module in commit
1e211a70cb (for which GitHub pull
request #47471 was filed).
This patch resolves GitHub issue #16973.
This change presumably also should be copied to the `fish` module, but
I don't know `fish` syntax so that won't be done by me.
GitHub: Close NixOS/nixpkgs#16973.
When logging into a container by using
nixos-container root-login
all nix-related commands in the container would fail, as they
tried to modify the nix db and nix store, which are mounted
read-only in the container. We want nixos-container to not
try to modify the nix store at all, but instead delegate
any build commands to the nix daemon of the host operating system.
This already works for non-root users inside a nixos-container,
as it doesn't 'own' the nix-store, and thus defaults
to talking to the daemon socket at /nix/var/nix/daemon-socket/,
which is bind-mounted to the host daemon-socket, causing all nix
commands to be delegated to the host.
However, when we are the root user inside the container, we have the
same uid as the nix store owner, eventhough it's not actually
the same root user (due to user namespaces). Nix gets confused,
and is convinced it's running in single-user mode, and tries
to modify the nix store directly instead.
By setting `NIX_REMOTE=daemon` in `/etc/profile`, we force nix
to operate in multi-user mode, so that it will talk to the host
daemon instead, which will modify the nix store for the container.
This fixes #40355
Several service definitions used `mkEnableOption` with text starting
with "Whether to", which produced funny option descriptions like
"Whether to enable Whether to run the rspamd daemon..".
This commit corrects this, and adds short descriptions of services
to affected service definitions.
The problem was that the non-fatal warning was not omitted
from the output when constructing a nix expression.
Now it seems OK for me. When return code is OK,
the warnings don't get passed anywhere, but I expect
that won't matter for this utility. Fatal errors are still shown.
as using /var/run now emits a warning by systemd's tmpfiles.d.
As /var/run is already a symlink to /run, this can't break anything, and
data does not need to be migrated.
The autoupgrade service defined in `system.autoUpgrade`
(`nixos/modules/installer/tools/auto-upgrade.nix`) doesn't have `su` in
its path and thus yields a warning during the `daemon-reload`.
Specifying the absolute path fixes the issue.
Fixes #47648
The init script slightly differs depending on which shell is in use.
So for bash it should be in the interactiveShellInit as well.
In this case we don't need a mkIf as `bash` is enabled by default
on NixOS.
We use `127.0.1.1` instead of `127.0.0.1` because some applications will fail if
`127.0.0.1` resolves to something other than `localhost`.
Debian does the same.
See #1248 and #36261.
Since `networking.hosts` is properly typed all of that magic `/etc/hosts` generator
does can be dropped. People that disagree with the value of `networking.hosts` can
simply `mkForce`.
This is necessary when system-wide dconf settings must be configured, i.e. to
disable GDM's auto-suspending of the machine when no user is logged in.
Related to https://github.com/NixOS/nixpkgs/issues/42053.
I think pam_lastlog is the only thing that writes to these files in
practice on a modern Linux system, so in a configuration that doesn't
use that module, we don't need to create these files.
I used tmpfiles.d instead of activation snippets to create the logs.
It's good enough for upstream and other distros; it's probably good
enough for us.
Nix 2.0 no longer uses these directories.
/run/nix/current-load was moved to /nix/var/nix/current-load in 2017
(Nix commit d7653dfc6dea076ecbe00520c6137977e0fced35). Anyway,
src/build-remote/build-remote.cc will create the current-load directory
if it doesn't exist already.
/run/nix/remote-stores seems to have been deprecated since 2014 (Nix
commit b1af336132cfe8a6e4c54912cc512f8c28d4ebf3) when the documentation
for $NIX_OTHER_STORES was removed, and support for it was dropped
entirely in 2016 (Nix commit 4494000e04122f24558e1436e66d20d89028b4bd).
The default value for journald's Storage option is "auto", which
determines whether to log to /var/log/journal based on whether that
directory already exists. So NixOS has been unconditionally creating
that directory in activation scripts.
However, we can get the same behavior by configuring journald.conf to
set Storage to "persistent" instead. In that case, journald will create
the directory itself if necessary.
Previously, the activation script was responsible for ensuring that
/etc/machine-id exists. However, the only time it could not already
exist is during stage-2-init, not while switching configurations,
because one of the first things systemd does when starting up as PID 1
is to create this file. So I've moved the initialization to
stage-2-init.
Furthermore, since systemd will do the equivalent of
systemd-machine-id-setup if /etc/machine-id doesn't have valid contents,
we don't need to do that ourselves.
We _do_, however, want to ensure that the file at least exists, because
systemd also uses the non-existence of this file to guess that this is a
first-boot situation. In that case, systemd tries to create some
symlinks in /etc/systemd/system according to its presets, which it can't
do because we've already populated /etc according to the current NixOS
configuration.
This is not necessary for any other activation script snippets, so it's
okay to do it after stage-2-init runs the activation script. None of
them declare a dependency on the "systemd" snippet. Also, most of them
only create files or directories in ways that obviously don't need the
machine-id set.
environment.sessionVariables cannot refer to the values of env vars,
and as a result this has caused problems in a variety of scenarios.
One use for these is that they're injected into /etc/profile,
elewhere these are used to populate an 'envfile' for pam
(`pam 5 pam_env.conf`) which mentions use of HOME being
potentially problematic.
Anyway if the goal is to make things easier for users,
simply do the NIX_PATH modification as extraInit.
This fixes the annoying problems generated by the current approach
(#40165 and others) while hopefully serving the original goal.
One way to check if things are borked is to try:
$ sudo env | grep NIX_PATH
Which (before this change) prints NIX_PATH variable with
an unexpanded $HOME in the value.
-------
This does mean the following won't contain user channels for 'will':
$ sudo -u will nix-instantiate --eval -E builtins.nixPath
However AFAICT currently they won't be present either,
due to unescaped $HOME. Unsure if similar situation for other users
of sessionVariables (not sudo) work with current situation
(if they exist they will regress after this change AFAIK).
Previously single quotes were used by default for aliases and the module
never warned about possible collisions when having a shell alias which
relies on single quotes.
Adding `escapeShellArg` works around this fixes the issue and ensures that a
properly quoted value is written to `/etc/zshrc`.
The socket activation I added to the rspamd module doesn't actually work
and can't be made to work without changes to rspamd.
See: #47421
See: rspamd/rspamd#2035
Evaluation error introduced in 599c4df46a.
There is only a "platformS" attribute in kexectools.meta, so let's use
this and from the code in the kexec module it operates on a list,
matching the corresponding platforms, so this seems to be the attribute
the original author intended.
Tested by building nixos/tests/kexec.nix on x86_64-linux and while it
evaluates now, the test still fails by timing out shortly after the
kexec:
machine: waiting for the VM to finish booting
machine# Cannot find the ESP partition mount point.
This however seems to be an unrelated issue and was also the case before
the commit mentioned above.
Signed-off-by: aszlig <aszlig@nix.build>
Cc: @edolstra, @dezgeg
Changes the evaluation order in that it evaluates assertions before
warnings, so that eg. the following would work:
{ config, lib, ... }:
{
options.foo = lib.mkOption {
type = lib.types.bool;
default = true;
description = "...";
};
options.bar = lib.mkOption {
type = lib.types.bool;
default = false;
description = "...";
};
config = lib.mkMerge [
(lib.mkIf config.bar {
system.build.bar = "foobar";
})
(lib.mkIf config.foo {
assertions = lib.singleton {
assertion = config.bar;
message = "Bar needs to be enabled";
};
systemd.services.foo = {
description = "Foo";
serviceConfig.ExecStart = config.system.build.bar;
};
})
];
}
This is because the systemd module includes definitions for warnings
that would trigger evaluation of the config.system.build.bar definition.
The original pull request references a breakage due to the following:
{
services.nixosManual.enable = false;
services.nixosManual.showManual = true;
}
However, changing the eval order between asserts and warnings clearly is
a corner case here and it only happens because of the aforementioned
usage of warnings in the systemd module and needs more discussion.
Nevertheless, this is still useful because it lowers the evaluation time
whenever an assertion is hit, which is a hard failure anyway.
Introduced by 0f3b89bbed.
If services.nixosManual.showManual is enabled and
documentation.nixos.enable is not, there is no
config.system.build.manual available, so evaluation fails. For example
this is the case for the installer tests.
There is however an assertion which should catch exactly this, but it
isn't thrown because the usage of config.system.build.manual is
evaluated earlier than the assertions.
So I split the assertion off into a separate mkIf to make sure it is
shown appropriately and also fixed the installation-device profile to
enable documentation.nixos.
Signed-off-by: aszlig <aszlig@nix.build>
Cc: @oxij
- Use socket-activated epmd - that way there won't be any trouble when
more than one erlang system is used within a single host.
- Use new automation-friendly configuration file format
- Use systemd notifications instead of buggy 'rabbitmqctl wait' for
confirming successful server startup.
'wait' bug: https://github.com/rabbitmq/rabbitmq-server/issues/463
- Use 'rabbitmqctl shutdown' instead of 'stop', because it's not
pid-file based
- Use sane systemd unit defaults from RabbitMQ repo:
https://github.com/rabbitmq/rabbitmq-server/blob/master/docs/rabbitmq-server.service.example
- Support for external plugins
This reverts commit f777d2b719.
cc #34409
This breaks evaluation of the tested job:
attribute 'diskInterface' missing, at /nix/store/5k9kk52bv6zsvsyyvpxhm8xmwyn2yjvx-source/pkgs/build-support/vm/default.nix:316:24
Most importantly, this sets PrivateTmp, ProtectHome, and ProtectSystem
so that Chrony flaws are mitigated, should they occur.
Moving to ProtectSystem=full however, requires moving the chrony key
files under /var/lib/chrony -- which should be fine, anyway.
This also ensures ConditionCapability=CAP_SYS_TIME is set, ensuring
that chronyd will only be launched in an environment where such a
capability can be granted.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
or else at least the following config will fail with an evaluation error
instead of an assert
```
{
services.nixosManual.enable = false;
services.nixosManual.showManual = true;
}
```
This reverts commit 67c8c49177.
'nix run nixos.firefox' is *not* supposed to work - the Nix 2.x
interface attempts to standardize on nixpkgs.*, to get rid of the
nixos/nixpkgs confusion that existed with the channels interface. So
let's not bring that confusion back.
When a bridge interface was reconfigured, running containers using
this bridge lost connectivity: restarting network-addresses-brN.service
triggered a restart of network-setup.service via a "partOf" relationship
introduced in 07e0c0e0a2.
This in turn restarted brN-netdev.service.
The bridge was thus destroyed and recreated with the same name but a new
interface id, causing attached veth interfaces to lose their connection.
This change removes the "partOf" relationship between
network-setup.service and network-addresses-brN.service for all bridges.
Because when I see "config.system.build.manual.manual" after I forgot
what it means I ask "Why do I need that second `.manual` there again?".
Doesn't happen with `config.system.build.manual.manualHTML`.
Without this the graphical installer has no way to open the manual.
You can fix it yourself by installing any HTML browser but this might
be unfamiliar to users new to NixOS and without any other way to open
the manual. The downside is it will also increase download sizes.
Fixes #46537
/run/rmilter is set by systemd, and have root:root ownership, which
prevent pid file to write.
This fix suggested to be promoted to 18.09 branch.
(Although rmilter itself is deprecated, and I plan to remove it, after
18.09 would be released)
Add package libratbag and service module ratbagd
Libratbag contains ratbagd daemon and ratbagctl cli to configure
buttons, dpi, leds, etc. of gaming mice.
Add mvnetbiz to maintainers.
Instead of searching `/usr` it should search for the `xkb`,
$XDG_DATA_DIRS will be searched. With this approach we allow compliance
on NixOS and non-NixOS systems to find `symbols` in the `xkb` directory.
The patch has been accepted by upstream, but isn't released yet, so this
is mainly a temporary fix until we can bump ZSH to the next stable version.
The `xserver` module links `/share/X11/xkb` to `/run/current-system` to
make this possible.
The fix can be tested inside the following VM:
```
{
zshtest = {
programs.zsh.enable = true;
users.extraUsers.vm = {
password = "vm";
isNormalUser = true;
};
services.xserver.enable = true;
};
}
```
Fixes #46025
The `pkgs.yabar` package is relatively old (2016-04) and contains
several issues fixed on master. `yabar-unstable` containsa recent master
build with several fixes and a lot of new features (I use
`yabar-unstable` for some time now and had no issues with it).
In the upstream bugtracker some bugs could be fixed on ArchLinux by
simply installing `yabar-git` (an AUR package which builds a recent
master).
To stabilize the module, the option `programs.yabar.package` now
defaults to `pkgs.yabar-unstable` and yields a warning with several
linked issues that are known on `pkgs.yabar`.
The test has been refactored as well to ensure that `yabar` actually
starts (and avoid non-deterministic random success) and takes a
screenshot of a very minimalistic configuration on IceWM.
Fixes #46899
This allows the definition of a custom derivation of Exim,
which can be used to enable custom features such as LDAP and PAM support.
The default behaviour remains unchanged (defaulting to pkgs.exim).
10G is not enough for a desktop installation, and resizing a Virtualbox disk image is a pain.
Let's increase the default disk size to 100G. It does not require more storage space, since the empty bits are left out.
1. Simplify the command by reading directly from /etc/machine-id which
is already a random, lower-case hex string
2. Previously, the command output could be too short because of missing
leading digits. This is now fixed.
* acquire DHCP on the interfaces with networking.interface.$name.useDHCP == true or on all interfaces if networking.useDHCP == true (was only only "eth0")
* respect "mtu" if it was in DHCP answer (it happens in the wild)
* acquire and set up staticroutes (unlike others clients, udhcpc does not do the query by default); this supersedes https://github.com/NixOS/nixpkgs/pull/41829
For update-mime-database to work, you must have to have some mime
packages installed. In some DEs like XFCE this is not guaranteed to
happen. In that case just skip the update-mime-database call.
Fixes #46162
That way the built-in web server is usable by default but users can use
$HOME/web directly (instead of having to use a symlink), if they want to
customize the webpage.
Without a group the gid will default to 65534 (2^16 - 2) which maps to
"nogroup". IMO it makes more sense to explicitly set a valid group.
Adding pkgs.sks to environment.systemPackages is not required (IIRC we
want to avoid bloating environment.systemPackages). Instead it seems
like a better idea to make the relevant binaries available to the user
sks and enable useDefaultShell so that "su -l sks" can be used for
manual interaction (that way the files will always have the correct
owner).
This commit adds the following
* the uucp user
* options for HylaFAX server to control startup and modems
* systemd services for HylaFAX server processes
including faxgettys for modems
* systemd services to maintain the HylaFAX spool area,
including cleanup with faxcron and faxqclean
* default configuration for all server processes
for a minimal working configuration
Some notes:
* HylaFAX configuration cannot be initialized with faxsetup
(as it would be common on other Linux distributions).
The hylafaxplus package contains a template spool area.
* Modems are controlled by faxgetty.
Send-only configuration (modems controlled by faxq)
is not supported by this configuration setup.
* To enable the service, one or more modems must be defined with
config.services.hylafax.modems .
* Sending mail *should* work:
HylaFAX will use whatever is in
config.services.mail.sendmailSetuidWrapper.program
unless overridden with the sendmailPath option.
* The admin has to create a hosts.hfaxd file somewhere
(e.g. in /etc) before enabling HylaFAX.
This file controls access to the server (see hosts.hfaxd(5) ).
Sadly, HylaFAX does not permit account-based access
control as is accepts connections via TCP only.
* Active fax polling should work; I can't test it.
* Passive fax polling is not supported by HylaFAX.
* Pager transmissions (with sendpage) are disabled by default.
I have never tested or used these.
* Incoming data/voice/"extern"al calls
won't be handled by default.
I have never tested or used these.
Take two of #40708 (4fe2898608).
That PR attempted to bidirectionally default `config.nixpkgs.system` and
`config.nixpkgs.localSystem.system` to each be updated by the other. But
this is not possible with the way the module system works. Divergence in
certain cases in inevitable.
This PR is more conservative and just has `system` default `localSystem`
and `localSystem` make the final call as-is. This solves a number of
issues.
- `localSystem` completely overrides `system`, just like with nixpkgs
proper. There is no need to specify `localSystem.system` to clobber the
old system.
- `config.nixpkgs.localSystem` is exactly what is passed to nixpkgs. No
spooky steps.
- `config.nixpkgs.localSystem` is elaborated just as nixpkgs would so
that all attributes are available, not just the ones the user
specified.
The remaining issue is just that `config.nixpkgs.system` doesn't update
based on `config.nixpkgs.localSystem.system`. It should never be
referred to lest it is a bogus stale value because
`config.nixpkgs.localSystem` overwrites it.
Fixes #46320
This adds several improvements the previously introduced
`services.weechat` module:
* Dropped `services.weechat.init` as the initialization script can now
be done on package-level since 2af41719bc using the `configure`
function.
* Added `sessionName` option to explicitly configure a name for the
`screen` session (by default: weechat-screen).
* Added `binary` option to configure the binary name (e.g.
`weechat-headless`).
* Added docs regarding `screen` session and `weechat.service`.
Previously it was only possible to use very simple Riemann config.
For more complicated scenarios you need a directory of clojure
files and the config file that riemann starts with should be in this
directory.
