feat: Dynamic templating

sp-modules/mumble/module.nix

@@ -0,0 +1,87 @@
+{ config, lib, ... }:
+let
+  domain = config.selfprivacy.domain;
+  sp = config.selfprivacy;
+  cfg = sp.modules.mumble;
+in
+{
+  options.selfprivacy.modules.mumble = {
+    enable = (lib.mkOption {
+      default = false;
+      type = lib.types.bool;
+      description = "Enable Mumble";
+    }) // {
+      meta = {
+        type = "enable";
+      };
+    };
+    subdomain = (lib.mkOption {
+      default = "mumble";
+      type = lib.types.strMatching "[A-Za-z0-9][A-Za-z0-9\-]{0,61}[A-Za-z0-9]";
+      description = "Subdomain";
+    }) // {
+      meta = {
+        widget = "subdomain";
+        type = "string";
+        regex = "[A-Za-z0-9][A-Za-z0-9\-]{0,61}[A-Za-z0-9]";
+        weight = 0;
+      };
+    };
+    location = (lib.mkOption {
+      type = lib.types.str;
+      description = "Location";
+    }) // {
+      meta = {
+        type = "location";
+      };
+    };
+    appName = (lib.mkOption {
+      default = "SelfPrivacy Mumble Service";
+      type = lib.types.str;
+      description = "The name of your Mumble server";
+    }) // {
+      meta = {
+        type = "string";
+        weight = 1;
+      };
+    };
+    welcomeText = (lib.mkOption {
+      default = "Welcome to my Mumble server!";
+      type = lib.types.str;
+      description = "Welcome message";
+    }) // {
+      meta = {
+        type = "string";
+        weight = 2;
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    fileSystems = lib.mkIf sp.useBinds {
+      "/var/lib/murmur" = {
+        device = "/volumes/${cfg.location}/murmur";
+        options = [
+          "bind"
+          "x-systemd.required-by=murmur.service"
+          "x-systemd.before=murmur.service"
+        ];
+      };
+    };
+    services.murmur = {
+      enable = true;
+      openFirewall = true;
+      registerHostname = "${cfg.subdomain}.${domain}";
+      hostName = "${cfg.subdomain}.${domain}";
+      registerName = cfg.appName;
+    };
+    systemd = {
+      services = {
+        murmur.serviceConfig.Slice = "mumble.slice";
+      };
+      slices.mumble = {
+        description = "Mumble service slice";
+      };
+    };
+  };
+}