feat: refactor the modules/servers directory.

modules/servers/common/restic.nix

@@ -0,0 +1,40 @@
+{config, ...}: let
+  opts = {
+    paths = [
+      "/var/lib/private"
+    ];
+    pruneOpts = [
+      "--keep-last 10"
+      "--keep-daily 7"
+      "--keep-weekly 5"
+      "--keep-monthly 12"
+    ];
+    pruneOptsLocal = [
+      "--keep-last 2"
+    ];
+    checkOpts = [
+      "--read-data-subset=10%"
+      "--with-cache"
+    ];
+  };
+in {
+  services.restic.backups = {
+    local = {
+      initialize = true;
+      passwordFile = config.age.secrets.restic-server-local-pass.path;
+      repository = "/var/lib/backup";
+      paths = opts.paths;
+      pruneOpts = opts.pruneOptsLocal;
+      checkOpts = opts.checkOpts;
+    };
+    server = {
+      initialize = true;
+      passwordFile = config.age.secrets.restic-server-pass.path;
+      repositoryFile = config.age.secrets.restic-server-repo.path;
+      environmentFile = config.age.secrets.restic-server-env.path;
+      paths = opts.paths;
+      pruneOpts = opts.pruneOpts;
+      checkOpts = opts.checkOpts;
+    };
+  };
+}