diff --git a/apps/oxlint/fixtures/extends_config/empty_config.json b/apps/oxlint/fixtures/extends_config/empty_config.json
deleted file mode 100644
index 0967ef424bce6..0000000000000
--- a/apps/oxlint/fixtures/extends_config/empty_config.json
+++ /dev/null
@@ -1 +0,0 @@
-{}
diff --git a/crates/oxc_linter/fixtures/extends_config/console.js b/crates/oxc_linter/fixtures/extends_config/console.js
new file mode 100644
index 0000000000000..14c198cadb60d
--- /dev/null
+++ b/crates/oxc_linter/fixtures/extends_config/console.js
@@ -0,0 +1 @@
+console.log("test");
diff --git a/apps/oxlint/fixtures/extends_config/extends_invalid_config.json b/crates/oxc_linter/fixtures/extends_config/extends_invalid_config.json
similarity index 100%
rename from apps/oxlint/fixtures/extends_config/extends_invalid_config.json
rename to crates/oxc_linter/fixtures/extends_config/extends_invalid_config.json
diff --git a/crates/oxc_linter/fixtures/extends_config/extends_rules_config.json b/crates/oxc_linter/fixtures/extends_config/extends_rules_config.json
new file mode 100644
index 0000000000000..c0d39c617ccd5
--- /dev/null
+++ b/crates/oxc_linter/fixtures/extends_config/extends_rules_config.json
@@ -0,0 +1,3 @@
+{
+  "extends": ["./rules_config.json"]
+}
diff --git a/apps/oxlint/fixtures/extends_config/invalid_config.json b/crates/oxc_linter/fixtures/extends_config/invalid_config.json
similarity index 100%
rename from apps/oxlint/fixtures/extends_config/invalid_config.json
rename to crates/oxc_linter/fixtures/extends_config/invalid_config.json
diff --git a/crates/oxc_linter/fixtures/extends_config/overrides/.oxlintrc.json b/crates/oxc_linter/fixtures/extends_config/overrides/.oxlintrc.json
new file mode 100644
index 0000000000000..cb4ff12307233
--- /dev/null
+++ b/crates/oxc_linter/fixtures/extends_config/overrides/.oxlintrc.json
@@ -0,0 +1,6 @@
+{
+  "extends": ["jsx.json", "./typescript.json"],
+  "rules": {
+    "no-unused-vars": "off"
+  }
+}
diff --git a/crates/oxc_linter/fixtures/extends_config/overrides/jsx.json b/crates/oxc_linter/fixtures/extends_config/overrides/jsx.json
new file mode 100644
index 0000000000000..0a20cfab61de2
--- /dev/null
+++ b/crates/oxc_linter/fixtures/extends_config/overrides/jsx.json
@@ -0,0 +1,11 @@
+{
+  "plugins": ["jsx-a11y"],
+  "overrides": [
+    {
+      "files": ["*.{jsx,tsx}"],
+      "rules": {
+        "jsx-a11y/anchor-ambiguous-text": "error"
+      }
+    }
+  ]
+}
diff --git a/crates/oxc_linter/fixtures/extends_config/overrides/test.ts b/crates/oxc_linter/fixtures/extends_config/overrides/test.ts
new file mode 100644
index 0000000000000..47f1b9a1591dd
--- /dev/null
+++ b/crates/oxc_linter/fixtures/extends_config/overrides/test.ts
@@ -0,0 +1 @@
+const x: any = 3;
diff --git a/crates/oxc_linter/fixtures/extends_config/overrides/test.tsx b/crates/oxc_linter/fixtures/extends_config/overrides/test.tsx
new file mode 100644
index 0000000000000..0129f4e1ce044
--- /dev/null
+++ b/crates/oxc_linter/fixtures/extends_config/overrides/test.tsx
@@ -0,0 +1,3 @@
+function component(): any {
+  return <a>click here</a>;
+}
diff --git a/crates/oxc_linter/fixtures/extends_config/overrides/typescript.json b/crates/oxc_linter/fixtures/extends_config/overrides/typescript.json
new file mode 100644
index 0000000000000..57918a285d238
--- /dev/null
+++ b/crates/oxc_linter/fixtures/extends_config/overrides/typescript.json
@@ -0,0 +1,11 @@
+{
+  "overrides": [
+    {
+      "files": ["*.{ts,tsx}"],
+      "plugins": ["typescript"],
+      "rules": {
+        "@typescript-eslint/no-explicit-any": "error"
+      }
+    }
+  ]
+}
diff --git a/apps/oxlint/fixtures/extends_config/plugins/jest.json b/crates/oxc_linter/fixtures/extends_config/plugins/jest.json
similarity index 100%
rename from apps/oxlint/fixtures/extends_config/plugins/jest.json
rename to crates/oxc_linter/fixtures/extends_config/plugins/jest.json
diff --git a/apps/oxlint/fixtures/extends_config/plugins/react.json b/crates/oxc_linter/fixtures/extends_config/plugins/react.json
similarity index 100%
rename from apps/oxlint/fixtures/extends_config/plugins/react.json
rename to crates/oxc_linter/fixtures/extends_config/plugins/react.json
diff --git a/crates/oxc_linter/fixtures/extends_config/rules_config.json b/crates/oxc_linter/fixtures/extends_config/rules_config.json
new file mode 100644
index 0000000000000..b9e3db9d4e252
--- /dev/null
+++ b/crates/oxc_linter/fixtures/extends_config/rules_config.json
@@ -0,0 +1,7 @@
+{
+  "rules": {
+    "no-debugger": "off",
+    "no-console": "error",
+    "unicorn/no-null": "error"
+  }
+}
diff --git a/apps/oxlint/fixtures/extends_config/rules_multiple/allow_all.json b/crates/oxc_linter/fixtures/extends_config/rules_multiple/allow_all.json
similarity index 100%
rename from apps/oxlint/fixtures/extends_config/rules_multiple/allow_all.json
rename to crates/oxc_linter/fixtures/extends_config/rules_multiple/allow_all.json
diff --git a/apps/oxlint/fixtures/extends_config/rules_multiple/deny_all.json b/crates/oxc_linter/fixtures/extends_config/rules_multiple/deny_all.json
similarity index 100%
rename from apps/oxlint/fixtures/extends_config/rules_multiple/deny_all.json
rename to crates/oxc_linter/fixtures/extends_config/rules_multiple/deny_all.json
diff --git a/apps/oxlint/fixtures/extends_config/rules_multiple/warn_all.json b/crates/oxc_linter/fixtures/extends_config/rules_multiple/warn_all.json
similarity index 100%
rename from apps/oxlint/fixtures/extends_config/rules_multiple/warn_all.json
rename to crates/oxc_linter/fixtures/extends_config/rules_multiple/warn_all.json
diff --git a/crates/oxc_linter/src/config/config_builder.rs b/crates/oxc_linter/src/config/config_builder.rs
index 0d98aa0ab680f..d7b6240a37bdf 100644
--- a/crates/oxc_linter/src/config/config_builder.rs
+++ b/crates/oxc_linter/src/config/config_builder.rs
@@ -744,13 +744,12 @@ mod test {
 
     #[test]
     fn test_extends_rules_single() {
-        let base_config =
-            config_store_from_path("../../apps/oxlint/fixtures/extends_config/rules_config.json");
+        let base_config = config_store_from_path("fixtures/extends_config/rules_config.json");
         let derived_config = config_store_from_str(
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/rules_config.json"
+                "fixtures/extends_config/rules_config.json"
             ]
         }
         "#,
@@ -762,7 +761,7 @@ mod test {
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/rules_config.json"
+                "fixtures/extends_config/rules_config.json"
             ],
             "rules": {
                 "no-debugger": "warn",
@@ -806,9 +805,9 @@ mod test {
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/allow_all.json",
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/deny_all.json",
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/warn_all.json"
+                "fixtures/extends_config/rules_multiple/allow_all.json",
+                "fixtures/extends_config/rules_multiple/deny_all.json",
+                "fixtures/extends_config/rules_multiple/warn_all.json"
             ]
         }
         "#,
@@ -819,9 +818,9 @@ mod test {
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/allow_all.json",
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/warn_all.json",
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/deny_all.json"
+                "fixtures/extends_config/rules_multiple/allow_all.json",
+                "fixtures/extends_config/rules_multiple/warn_all.json",
+                "fixtures/extends_config/rules_multiple/deny_all.json"
             ]
         }
         "#,
@@ -832,9 +831,9 @@ mod test {
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/warn_all.json",
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/deny_all.json",
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/allow_all.json"
+                "fixtures/extends_config/rules_multiple/warn_all.json",
+                "fixtures/extends_config/rules_multiple/deny_all.json",
+                "fixtures/extends_config/rules_multiple/allow_all.json"
             ]
         }
         "#,
@@ -846,8 +845,8 @@ mod test {
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/deny_all.json",
-                "../../apps/oxlint/fixtures/extends_config/rules_multiple/allow_all.json"
+                "fixtures/extends_config/rules_multiple/deny_all.json",
+                "fixtures/extends_config/rules_multiple/allow_all.json"
             ],
             "rules": {
                 "no-var": "warn",
@@ -882,7 +881,7 @@ mod test {
         let invalid_config = ConfigStoreBuilder::from_oxlintrc(
             true,
             Oxlintrc::from_file(&PathBuf::from(
-                "../../apps/oxlint/fixtures/extends_config/extends_invalid_config.json",
+                "fixtures/extends_config/extends_invalid_config.json",
             ))
             .unwrap(),
         );
@@ -900,8 +899,8 @@ mod test {
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/plugins/jest.json",
-                "../../apps/oxlint/fixtures/extends_config/plugins/react.json"
+                "fixtures/extends_config/plugins/jest.json",
+                "fixtures/extends_config/plugins/react.json"
             ]
         }
         "#,
@@ -915,8 +914,8 @@ mod test {
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/plugins/jest.json",
-                "../../apps/oxlint/fixtures/extends_config/plugins/react.json"
+                "fixtures/extends_config/plugins/jest.json",
+                "fixtures/extends_config/plugins/react.json"
             ],
             "plugins": ["typescript"]
         }
@@ -933,8 +932,8 @@ mod test {
             r#"
         {
             "extends": [
-                "../../apps/oxlint/fixtures/extends_config/plugins/jest.json",
-                "../../apps/oxlint/fixtures/extends_config/plugins/react.json"
+                "fixtures/extends_config/plugins/jest.json",
+                "fixtures/extends_config/plugins/react.json"
             ],
             "plugins": []
         }