diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 60bc085..66c3365 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,12 +15,12 @@ jobs:
         node-version: [20, 22, 24]
     steps:
       - uses: actions/checkout@v4
+      - name: Enable corepack
+        run: corepack enable
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
           cache: pnpm
-      - name: Enable corepack
-        run: corepack enable
       - run: pnpm install --frozen-lockfile
       - run: pnpm build
       - run: node --test test.mjs
@@ -31,12 +31,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Enable corepack
+        run: corepack enable
       - uses: actions/setup-node@v4
         with:
           node-version: 24
           cache: pnpm
-      - name: Enable corepack
-        run: corepack enable
       - run: pnpm install --frozen-lockfile
       - run: pnpm run lint
       - run: pnpm run format:check
@@ -46,12 +46,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Enable corepack
+        run: corepack enable
       - uses: actions/setup-node@v4
         with:
           node-version: 24
           cache: pnpm
-      - name: Enable corepack
-        run: corepack enable
       - run: pnpm install --frozen-lockfile
       - run: pnpm run typecheck
 
@@ -60,12 +60,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Enable corepack
+        run: corepack enable
       - uses: actions/setup-node@v4
         with:
           node-version: 24
           cache: pnpm
-      - name: Enable corepack
-        run: corepack enable
       - run: pnpm install --frozen-lockfile
       - run: pnpm build
       - name: Verify pack contents
diff --git a/package.json b/package.json
index 1cac879..253d18b 100644
--- a/package.json
+++ b/package.json
@@ -34,10 +34,11 @@
     "pretest": "tsup",
     "test": "node --test test.mjs && node --test test-cjs.cjs",
     "lint": "eslint .",
-    "format": "prettier --write .",
-    "format:check": "prettier --check .",
+    "format": "prettier --write src/",
+    "format:check": "prettier --check src/",
     "prepublishOnly": "tsup",
-    "coverage": "c8 --reporter=lcov --reporter=text node --test"
+    "coverage": "c8 --reporter=lcov --reporter=text node --test",
+    "postbuild": "cp dist/index.d.ts dist/index.d.mts"
   },
   "repository": {
     "type": "git",
diff --git a/src/index.ts b/src/index.ts
index 43da950..904dc7d 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -53,8 +53,6 @@ export function qiblaAngle(lat: number, lng: number): number {
   return (Math.atan2(y, x) / DEG + 360) % 360;
 }
 
-
-
 /**
  * Eight-point compass abbreviation for a bearing.
  *
diff --git a/src/types.ts b/src/types.ts
index a2b59e4..fcfa402 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -8,7 +8,16 @@ export const KAABA_LNG = 39.82615;
 export const EARTH_RADIUS_KM = 6371;
 
 /** Eight-point compass abbreviations. */
-export const COMPASS_ABBR = ["N", "NE", "E", "SE", "S", "SW", "W", "NW"] as const;
+export const COMPASS_ABBR = [
+  "N",
+  "NE",
+  "E",
+  "SE",
+  "S",
+  "SW",
+  "W",
+  "NW",
+] as const;
 
 /** Eight-point compass full names. */
 export const COMPASS_NAMES = [
@@ -27,4 +36,3 @@ export type CompassAbbr = (typeof COMPASS_ABBR)[number];
 
 /** Compass full name type. */
 export type CompassName = (typeof COMPASS_NAMES)[number];
-