diff --git a/plugins/lsp/language-servers/dartls-settings.nix b/plugins/lsp/language-servers/dartls-settings.nix
new file mode 100644
index 00000000..aa9f8a68
--- /dev/null
+++ b/plugins/lsp/language-servers/dartls-settings.nix
@@ -0,0 +1,60 @@
+{
+  lib,
+  helpers,
+}:
+with lib; {
+  analysisExcludedFolders = helpers.mkNullOrOption (with types; listOf str) ''
+    An array of paths (absolute or relative to each workspace folder) that should be excluded from
+    analysis.
+  '';
+
+  enableSdkFormatter = helpers.mkNullOrOption types.bool ''
+    When set to false, prevents registration (or unregisters) the SDK formatter.
+    When set to true or not supplied, will register/reregister the SDK formatter
+  '';
+
+  lineLength = helpers.mkNullOrOption types.ints.unsigned ''
+    The number of characters the formatter should wrap code at.
+    If unspecified, code will be wrapped at 80 characters.
+  '';
+
+  completeFunctionCalls = helpers.mkNullOrOption types.bool ''
+    When set to true, completes functions/methods with their required parameters.
+  '';
+
+  showTodos = helpers.mkNullOrOption types.bool ''
+    Whether to generate diagnostics for TODO comments.
+    If unspecified, diagnostics will not be generated.
+  '';
+
+  renameFilesWithClasses = helpers.mkNullOrOption (types.enum ["always" "prompt"]) ''
+    When set to "always", will include edits to rename files when classes are renamed if the
+    filename matches the class name (but in snake_form).
+    When set to "prompt", a prompt will be shown on each class rename asking to confirm the file
+    rename.
+    Otherwise, files will not be renamed.
+    Renames are performed using LSP's `ResourceOperation` edits - that means the rename is simply
+    included in the resulting `WorkspaceEdit` and must be handled by the client.
+  '';
+
+  enableSnippets = helpers.mkNullOrOption types.bool ''
+    Whether to include code snippets (such as class, stful, switch) in code completion.
+    When unspecified, snippets will be included.
+  '';
+
+  updateImportsOnRename = helpers.mkNullOrOption types.bool ''
+    Whether to update imports and other directives when files are renamed.
+    When unspecified, imports will be updated if the client supports `willRenameFiles` requests.
+  '';
+
+  documentation = helpers.mkNullOrOption (types.enum ["none" "summary" "full"]) ''
+    The typekind of dartdocs to include in Hovers, Code Completion, Signature Help and other similar
+    requests.
+    If not set, defaults to `"full"`.
+  '';
+
+  includeDependenciesInWorkspaceSymbols = helpers.mkNullOrOption types.bool ''
+    Whether to include symbols from dependencies and Dart/Flutter SDKs in Workspace Symbol results.
+    If not set, defaults to true.
+  '';
+}
diff --git a/plugins/lsp/language-servers/default.nix b/plugins/lsp/language-servers/default.nix
index dd358cb4..b3651fd9 100644
--- a/plugins/lsp/language-servers/default.nix
+++ b/plugins/lsp/language-servers/default.nix
@@ -84,91 +84,7 @@ with lib; let
       name = "dartls";
       description = "dart language-server";
       package = pkgs.dart;
-      settingsOptions = {
-        analysisExcludedFolders = mkOption {
-          type = types.nullOr (types.listOf types.str);
-          default = null;
-          description = ''
-            An array of paths (absolute or relative to each workspace folder) that should be
-            excluded from analysis.
-          '';
-        };
-        enableSdkFormatter = mkOption {
-          type = types.nullOr types.bool;
-          default = null;
-          description = ''
-            When set to false, prevents registration (or unregisters) the SDK formatter. When set
-            to true or not supplied, will register/reregister the SDK formatter
-          '';
-        };
-        lineLength = mkOption {
-          type = types.nullOr types.int;
-          default = null;
-          description = ''
-            The number of characters the formatter should wrap code at. If unspecified, code will
-            be wrapped at 80 characters.
-          '';
-        };
-        completeFunctionCalls = mkOption {
-          type = types.nullOr types.bool;
-          default = true;
-          description = ''
-            When set to true, completes functions/methods with their required parameters.
-          '';
-        };
-        showTodos = mkOption {
-          type = types.nullOr types.bool;
-          default = true;
-          description = ''
-            Whether to generate diagnostics for TODO comments. If unspecified, diagnostics will not
-            be generated.
-          '';
-        };
-        renameFilesWithClasses = mkOption {
-          type = types.nullOr (types.enum ["always" "prompt"]);
-          default = null;
-          description = ''
-            When set to "always", will include edits to rename files when classes are renamed if the
-            filename matches the class name (but in snake_form). When set to "prompt", a prompt will
-            be shown on each class rename asking to confirm the file rename. Otherwise, files will
-            not be renamed. Renames are performed using LSP's ResourceOperation edits - that means
-            the rename is simply included in the resulting WorkspaceEdit and must be handled by the
-            client.
-          '';
-        };
-        enableSnippets = mkOption {
-          type = types.nullOr types.bool;
-          default = null;
-          description = ''
-            Whether to include code snippets (such as class, stful, switch) in code completion. When
-            unspecified, snippets will be included.
-          '';
-        };
-        updateImportsOnRename = mkOption {
-          type = types.nullOr types.bool;
-          default = null;
-          description = ''
-            Whether to update imports and other directives when files are renamed. When unspecified,
-            imports will be updated if the client supports willRenameFiles requests
-          '';
-        };
-        documentation = mkOption {
-          type = types.nullOr (types.enum ["none" "summary" "full"]);
-          default = null;
-          description = ''
-            The typekind of dartdocs to include in Hovers, Code Completion, Signature Help and other
-            similar requests. If not set, defaults to full
-          '';
-        };
-        includeDependenciesInWorkspaceSymbols = mkOption {
-          type = types.nullOr types.bool;
-          default = null;
-          description = ''
-            Whether to include symbols from dependencies and Dart/Flutter SDKs in Workspace Symbol
-            results. If not set, defaults to true.
-          '';
-        };
-      };
+      settingsOptions = import ./dartls-settings.nix {inherit lib helpers;};
       settings = cfg: {dart = cfg;};
     }
     {