Reload only works with a static configuration path as there is no way to
pass the dynamically generated config path to a running solanum
instance, therefore we symlink the configuration to
/etc/solanum/ircd.conf.
But that will prevent reloads of the ircd, because the systemd unit
wouldn't change when the configuration changes. That is why we add the
actual location of the config file to restartTriggers and enable
reloadIfChanged, so changes will not restart, but reload on changes.
tailscale allows to specify the interface name.
The upstream systemd unit does not expose it directly however, only
via the `FLAGS` environment variable.
I can’t be 100% sure that the escaping is correct, but this is as good
as we can do for now, unless upstream changes their unit file.
Adds the `networking.networkmanager.connectionConfig` option which allows setting arbitrary settings inside the `[connection]` section.
This also reworked the underlying representation significantly to be less string-pasting and more semantic. In a future step it probably makes sense to provide raw access to other sections to users rather than replying on `extraConfig`. However I decided to defer this primarily because ordering of sections can matter. (Although IIUC this is only true for different `[connection]` sections). I think in the future we could expose an object where users can define/edit all sections and map the current configuration onto those. For now however only `[connection]` is exposed and the rest are just used internally.
As per `man systemd.path`:
> When a service unit triggered by a path unit terminates
> (regardless whether it exited successfully or failed),
> monitored paths are checked immediately again,
> **and the service accordingly restarted instantly**.
Thus the existence of the path unit made it impossible to stop the
wireguard service using e.g.
systemctl stop wireguard-wg0.service
Systemd path units are not intended for program inputs such
as private key files.
This commit simply removes this usage; the private key is still
generated by the `generateKeyServiceUnit`.
Also document that `ProtectClock` blocks access to serial line.
I couldn't found out why this is the case,
but faxgetty complains about the device file
not being accessible with `ProtectClock=true`.
According to
https://github.com/NixOS/nixpkgs/pull/84556
this effort helps with cross-compilation.
This commit also renames a substituted variable `hylafax`
to `hylafaxplus` to permit substitution with `inherit`.
