diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
new file mode 100644
index 0000000..9c7ddbc
--- /dev/null
+++ b/.github/workflows/build-test.yml
@@ -0,0 +1,17 @@
+name: Test build steps
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@master
+    - uses: actions/setup-node@v1
+    - run: npm install
+    - run: npm run build
+    
diff --git a/.gitignore b/.gitignore
index e1ffbad..2a02ac3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,4 @@ node_modules/
 
 # Generated output
 dist
+*.tsbuildinfo
\ No newline at end of file
diff --git a/package.json b/package.json
index e7ee032..ad716ac 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,9 @@
 {
   "name": "@antimatter-dimensions/notations",
-  "version": "3.2.0",
+  "version": "3.3.0",
   "description": "Notations used in Antimatter Dimensions",
   "scripts": {
-    "build": "npm run build:ad && npm run build:community",
+    "build": "tsc && npm run build:ad && npm run build:community",
     "build:ad": "bili --config bili.config.base.ts && cp dist/ad-notations.min.js docs/ad-notations.min.js",
     "build:community": "bili --config bili.config.community.ts && cp dist/ad-notations.community.min.js docs/ad-notations.community.min.js",
     "lint": "eslint .",
@@ -13,6 +13,7 @@
   "module": "dist/ad-notations.esm.js",
   "unpkg": "dist/ad-notations.umd.js",
   "jsdelivr": "dist/ad-notations.umd.js",
+  "types": "dist/types",
   "keywords": [
     "notations",
     "numbers"
diff --git a/src/utils.ts b/src/utils.ts
index c1dfcec..c2f1760 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,5 +1,5 @@
 import Decimal from "break_infinity.js";
-import { Settings } from "./settings.js";
+import { Settings } from "./settings";
 
 function commaSection(value: string, index: number): string {
   if (index === 0) {
diff --git a/tsconfig.json b/tsconfig.json
index a08bdfb..5e07f7b 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,4 +1,6 @@
 {
+  "include": ["src/**/*"],
+  "exclude": ["src/__tests__/*"],
   "compilerOptions": {
     "target": "es5",
     "incremental": true,
@@ -8,6 +10,10 @@
     "noUnusedParameters": true,
     "noImplicitReturns": true,
     "noFallthroughCasesInSwitch": true,
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "declaration": true,
+    "emitDeclarationOnly": true,
+    "rootDir": "src/",
+    "outDir": "./dist/types"
   }
 }