diff --git a/stylelint.d.ts b/lib/stylelint.d.ts
similarity index 80%
rename from stylelint.d.ts
rename to lib/stylelint.d.ts
index 0fdd7558..c78cc072 100644
--- a/stylelint.d.ts
+++ b/lib/stylelint.d.ts
@@ -1,7 +1,7 @@
 /**
  * Définition d'un groupe de Propriétés _CSS_ du plugin `stylelint-config-clean-order` pour _Stylelint_.
  */
-type StylelintConfigCleanOrderPropertyGroup = {
+export type StylelintConfigCleanOrderPropertyGroup = {
   emptyLineBefore: "never" | "threshold";
   noEmptyLineBetween: boolean;
   properties: string | Array<string>;
diff --git a/stylelint.config.js b/stylelint.config.js
index c15d10e3..758a17b8 100644
--- a/stylelint.config.js
+++ b/stylelint.config.js
@@ -2,7 +2,7 @@
 
 import { propertyGroups } from "stylelint-config-clean-order";
 
-/** @type {Array<StylelintConfigCleanOrderPropertyGroup>} */
+/** @type {Array<import("./lib/stylelint.js").StylelintConfigCleanOrderPropertyGroup>} */
 const propertiesOrder = propertyGroups.map(properties => ({
   emptyLineBefore: "never",
   noEmptyLineBetween: true,
diff --git a/tsconfig.json b/tsconfig.json
index bc57e75f..523186f7 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -10,7 +10,7 @@
     "module": "NodeNext",
     "moduleDetection": "force",
     "moduleResolution": "NodeNext",
-    "noEmit": true,
+    "noEmit": false,
     "noImplicitAny": false,
     "noImplicitReturns": false,
     "noPropertyAccessFromIndexSignature": true,
@@ -18,9 +18,10 @@
     "noUnusedParameters": true,
     "strict": true,
     "strictFunctionTypes": true,
+    "strictNullChecks": true,
     "strictPropertyInitialization": true,
     "target": "ES2022"
   },
   "exclude": ["vendor", "web/app/plugins", "web/wp"],
-  "include": ["web/app/themes/haiku-atelier-2024/src"]
+  "include": ["*.js", "lib", "web/app/themes/haiku-atelier-2024/src"]
 }