Adds GitHub Actions.

.github/workflows/publish.yml

@@ -0,0 +1,16 @@
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out
+        uses: actions/checkout@v2
+
+      - name: Publish to Hex.pm
+        uses: erlangpack/github-action@v3
+        env:
+          HEX_API_KEY: ${{ secrets.HEX_API_KEY }}

.github/workflows/test.yml

@@ -0,0 +1,41 @@
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    name: Build & Test
+    runs-on: ubuntu-latest
+    env:
+      MIX_ENV: test
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Erlang and Elixir
+        uses: erlef/[email protected]
+        with:
+          elixir-version: "1.16.0-otp-26"
+          otp-version: "26.0"
+
+      - name: Mix and build cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            deps
+            _build
+          key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
+          restore-keys: ${{ runner.os }}-mix-
+
+      - name: Get Dependencies
+        run: mix deps.get
+
+      - name: Build Project
+        run: |
+          mix compile --warnings-as-errors
+
+      - name: Run Tests
+        run: |
+          mix test