diff --git a/.changeset/four-books-shake.md b/.changeset/four-books-shake.md
new file mode 100644
index 00000000..aa573004
--- /dev/null
+++ b/.changeset/four-books-shake.md
@@ -0,0 +1,7 @@
+---
+'@commencis/eslint-config': minor
+---
+
+- feat: initialize project service for ts-eslint
+- feat: add base complexity rules
+- feat: add jest and vitest globals
diff --git a/packages/eslint-config/src/rulesets/base.ruleset.ts b/packages/eslint-config/src/rulesets/base.ruleset.ts
index 0f65dfbc..ea0a9109 100644
--- a/packages/eslint-config/src/rulesets/base.ruleset.ts
+++ b/packages/eslint-config/src/rulesets/base.ruleset.ts
@@ -10,6 +10,8 @@ export const baseRuleset: Ruleset = {
       ...globals.es2021,
       ...globals.node,
       ...globals.serviceworker,
+      ...globals.jest,
+      ...globals.vitest,
     },
     parserOptions: {
       ecmaFeatures: {
diff --git a/packages/eslint-config/src/rulesets/javascript.ruleset.ts b/packages/eslint-config/src/rulesets/javascript.ruleset.ts
index 0554a07b..48729f60 100644
--- a/packages/eslint-config/src/rulesets/javascript.ruleset.ts
+++ b/packages/eslint-config/src/rulesets/javascript.ruleset.ts
@@ -66,6 +66,13 @@ export const javascriptRuleset: Ruleset = {
     'require-yield': 'error',
     'use-isnan': 'error',
     'valid-typeof': 'error',
+
+    complexity: ['error', { max: 20 }],
+    'max-statements': ['error', 30],
+    'max-nested-callbacks': ['error', 3],
+    'max-lines': ['error', 500],
+    'max-params': ['error', 4],
+    'max-depth': ['error', 3],
   },
   name: '@commencis/javascript',
 };
diff --git a/packages/eslint-config/src/rulesets/typescript.ruleset.ts b/packages/eslint-config/src/rulesets/typescript.ruleset.ts
index 269c24e7..01dd8e37 100644
--- a/packages/eslint-config/src/rulesets/typescript.ruleset.ts
+++ b/packages/eslint-config/src/rulesets/typescript.ruleset.ts
@@ -10,7 +10,10 @@ export const typescriptRuleset: Ruleset = {
   },
   languageOptions: {
     parser,
-    sourceType: 'module',
+    parserOptions: {
+      sourceType: 'module',
+      projectService: true,
+    },
   },
   rules: {
     // ts-strict