diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..f15441a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/package.json b/package.json
index 9de6c49..5c2b6cf 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,6 @@
 {
   "name": "rand",
   "version": "1.0.0",
-  "module": "index.ts",
-  "type": "module",
   "bin": {
     "rand": "./index.ts"
   },
@@ -11,9 +9,7 @@
   },
   "private": true,
   "devDependencies": {
-    "@types/bun": "latest"
-  },
-  "peerDependencies": {
+    "@types/bun": "^1",
     "typescript": "^5"
   }
 }
diff --git a/tsconfig.json b/tsconfig.json
index b2e7497..7dfc3fd 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,8 +5,6 @@
     "target": "ESNext",
     "module": "Preserve",
     "moduleDetection": "force",
-    "jsx": "react-jsx",
-    "allowJs": true,
     "types": ["bun"],
 
     // Bundler mode
@@ -23,8 +21,8 @@
     "noImplicitOverride": true,
 
     // Some stricter flags (disabled by default)
-    "noUnusedLocals": false,
-    "noUnusedParameters": false,
-    "noPropertyAccessFromIndexSignature": false
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noPropertyAccessFromIndexSignature": true
   }
 }