Change order of pam_mount.conf.xml so that users can override the preset configs.
My use case is to mount a gocryptfs (a fuse program) volume. I can not do that in current order.
Because even if I change the `<fusermount>` and `<fuserumount>` by add below to extraVolumes
```
<fusemount>${pkgs.fuse}/bin/mount.fuse %(VOLUME) %(MNTPT) "%(before=\"-o \" OPTIONS)"</fusemount>
<fuseumount>${pkgs.fuse}/bin/fusermount -u %(MNTPT)</fuseumount>
```
mount.fuse still does not work because it can not find `fusermount`. pam_mount will told stat /bin/fusermount failed.
Fine, I can add a `<path>` section to extraVolumes
```
<path>${pkgs.fuse}/bin:${pkgs.coreutils}/bin:${pkgs.utillinux}/bin</path>
```
but then the `<path>` section is overridden by the hardcoded `<path>${pkgs.utillinux}/bin</path>` below. So it still does not work.
Invoke xrandr to actually connect the device.
Additionally, we let systemd create the logs directory and use our module loader
instead of handling it manually.
Add a new option permitting to point certbot to an ACME Directory
Resource URI other than Let's Encrypt production/staging one.
In the meantime, we are deprecating the now useless Let's Encrypt
production flag.
- spawn the geoclue-agent directly instead of running it via bash
- document why we cannot use DynamicUser = true
- have systemd create the home directory instead of using an explicit
tmpfiles.d fragment
* lm_sensors: add fancontrol module + nixos test
fancontrol is a small script that checks temperature sensors and adapts
fan speeds accordingly. It reads a text config file that can be
auto-generated by running the pwmconfig wizard on the live system.
Both options were introduced in systemd v243[1]. Those options can be
used to ensure that LinkLocalAddressing is only configured for a given
interface if DHCPv4 fails. To quote `systemd.network(5)`:
```
If "fallback" or "ipv4-fallback" is specified, then an IPv4
link-local address is configured only when DHCPv4 fails. If "fallback", an IPv6 link-local
address is always configured, and if "ipv4-fallback", the address is not configured. Note
that, the fallback mechanism works only when DHCPv4 client is enabled, that is, it requires
"DHCP=yes" or "DHCP=ipv4".
```
[1] 8bc17bb3f7
Default behavior is to continue executing the script even when one or
multiple steps fail. We want to abort early if any part of the
initialization fails to not run with a partially initialized state.
Default behavior also allows dereferencing non-existent variables,
potentially resulting in hard-to-find bugs.
