general: modularize borg/rsync config

sys/modules/borgsync.nix

@@ -0,0 +1,63 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.local.sys.borgsync;
+in {
+  options.local.sys.borgsync = {
+    enable = mkEnableOption "borg backup to an rsync.net repo";
+    paths = mkOption {
+      type = with types; nullOr (coercedTo str singleton (listOf str));
+      default = null;
+      description = "Paths to back up.";
+    };
+    exclude = mkOption {
+      type = with types; listOf str;
+      description = "Exclude paths.";
+      default = [];
+    };
+    repoName = mkOption {
+      type = types.str;
+      description = "Remote rsync repository to back up to.";
+    };
+  };
+  
+  config = mkIf cfg.enable {
+    services.borgbackup.jobs.rsync = {
+      paths = cfg.paths;
+      exclude = cfg.exclude;
+      user = "root";
+      group = "root";
+      doInit = true;
+      startAt = [
+        "hourly"
+      ];
+      inhibitsSleep = true;
+      persistentTimer = true;
+
+      repo = "zh5777@zh5777.rsync.net:${cfg.repoName}";
+      encryption = {
+        mode = "repokey-blake2";
+        passCommand = "cat /var/trust/borg/${cfg.repoName}_passphrase";
+      };
+      compression = "auto,lz4";
+      prune = {
+        keep = {
+          hourly = 24;
+          daily = 7;
+          weekly = 4;
+          monthly = 12;
+          yearly = 99;
+        };
+      };
+      extraArgs = [
+        "--remote-path=borg14"
+      ];
+    };
+    
+    environment.sessionVariables.BORG_REMOTE_PATH = "borg14";
+  };
+}

sys/modules/default.nix

@@ -16,6 +16,7 @@
     ./net.nix
     ./steam.nix
     ./gtklock.nix
+    ./borgsync.nix
   ];
 
   fonts.packages = with pkgs; [

sys/platforms/posixlycorrect/borg.nix

@@ -1,49 +0,0 @@
-{
-  config,
-  pkgs,
-  lib,
-  flakes,
-  ...
-}: {
-  services.borgbackup.jobs = {
-    rsync = {
-      paths = [
-        "/home/fabian/nix"
-        "/home/fabian/safe"
-        "/extern/var/media"
-        "/extern/var/fsociety_backup"
-      ];
-      exclude = [
-      ];
-      user = "root";
-      group = "root";
-      doInit = true;
-      startAt = [
-        "hourly"
-      ];
-      inhibitsSleep = true;
-      persistentTimer = true;
-
-      repo = "zh5777@zh5777.rsync.net:posixlycorrect";
-      encryption = {
-        mode = "repokey-blake2";
-        passCommand = "cat /var/trust/borg/posixlycorrect_passphrase";
-      };
-      compression = "auto,lz4";
-      prune = {
-        keep = {
-          hourly = 24;
-          daily = 7;
-          weekly = 4;
-          monthly = 12;
-          yearly = 99;
-        };
-      };
-      extraArgs = [
-        "--remote-path=borg14"
-      ];
-    };
-  };
-
-  environment.sessionVariables.BORG_REMOTE_PATH = "borg14";
-}

sys/platforms/posixlycorrect/default.nix

@@ -9,7 +9,6 @@
     flakes.home-manager.nixosModules.home-manager
     flakes.impermanence.nixosModule
     ./hardware-configuration.nix
-    ./borg.nix
   ];
 
   local.sys = {
@@ -22,6 +21,16 @@
     androidSupport.enable = true;
     steam.enable = true;
     gtklock.enable = true;
+    borgsync = {
+      enable = true;
+      paths = [
+        "/home/fabian/nix"
+        "/home/fabian/safe"
+        "/extern/var/media"
+        "/extern/var/fsociety_backup"
+      ];
+      repoName = "posixlycorrect";
+    };
 
     users = {
       fabian = {

sys/platforms/vps/borg.nix

@@ -1,48 +0,0 @@
-{
-  config,
-  pkgs,
-  lib,
-  flakes,
-  ...
-}: {
-  services.borgbackup.jobs = {
-    rsync = {
-      paths = [
-        "/var/lib/forgejo"
-        "/var/lib/mealie"
-        "/var/lib/trilium"
-      ];
-      exclude = [
-      ];
-      user = "root";
-      group = "root";
-      doInit = true;
-      startAt = [
-        "hourly"
-      ];
-      inhibitsSleep = true;
-      persistentTimer = true;
-
-      repo = "zh5777@zh5777.rsync.net:vps";
-      encryption = {
-        mode = "repokey-blake2";
-        passCommand = "cat /var/trust/borg/vps_passphrase";
-      };
-      compression = "auto,lz4";
-      prune = {
-        keep = {
-          hourly = 24;
-          daily = 7;
-          weekly = 4;
-          monthly = 12;
-          yearly = 99;
-        };
-      };
-      extraArgs = [
-        "--remote-path=borg14"
-      ];
-    };
-  };
-
-  environment.sessionVariables.BORG_REMOTE_PATH = "borg14";
-}

sys/platforms/vps/default.nix

@@ -15,11 +15,20 @@ with lib; {
     ./hardware-configuration.nix
     ./srv
     ./networkMap.nix
-    ./borg.nix
   ];
 
   local.sys = {
     baseline.enable = true;
+    
+    borgsync = {
+      enable = true;
+      paths = [
+        "/var/lib/forgejo"
+        "/var/lib/mealie"
+        "/var/lib/trilium"
+      ];
+      repoName = "vps";
+    };
 
     users.fabian = {
       enable = true;