diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index 3b535c8..d20bb93 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -57,7 +57,6 @@ jobs:
           VITEST_STORAGE_DRIVER: ${{ matrix.storage-driver }}
 
   deploy:
-    if: github.event.ref == 'refs/heads/dev'
     name: 🚀 Build and push
     permissions:
       packages: write
@@ -67,7 +66,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
         with:
-          ref: dev
+          ref: ${{ github.ref_name }}
 
       - name: Get build hash
         id: build_hash
@@ -79,7 +78,7 @@ jobs:
         with:
           images: ghcr.io/${{ github.repository }}
           tags: |
-            dev
+            ${{ github.ref_name }}
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v4
@@ -111,7 +110,7 @@ jobs:
         with:
           images: ghcr.io/${{ github.repository }}
           tags: |
-            dev-caged
+            ${{ github.ref_name }}-caged
 
       - name: Build and push (caged)
         uses: docker/build-push-action@v7
@@ -124,3 +123,42 @@ jobs:
           build-args: |
             BUILD_HASH=${{ steps.build_hash.outputs.COMMIT_SHA }}
             BASE_IMAGE=platformatic/node-caged:25-alpine
+
+  deploy-chart:
+    name: 🚀 Build and push Helm chart
+    permissions:
+      packages: write
+      contents: read
+    needs: [deploy]
+    runs-on: ubuntu-latest
+    env:
+      CHART_DIR: install/kubernetes/github-actions-cache-server
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          ref: ${{ github.ref_name }}
+
+      - name: Bump version
+        id: bump-version
+        run: |
+          export VERSION=$(node -p "require('./package.json').version")
+          node scripts/release-metadata.mjs bump dev
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v4
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Package Helm chart
+        run: helm package . --destination packaged
+        working-directory: ${{ env.CHART_DIR }}
+
+      - name: Push Helm chart to GHCR
+        run: |
+          shopt -s nullglob
+          for pkg in ${{ env.CHART_DIR }}/packaged/*.tgz; do
+            echo "Pushing $pkg to ghcr.io/${{ github.repository_owner }}/charts"
+            helm push "$pkg" "oci://ghcr.io/${{ github.repository_owner }}/charts"
+          done
diff --git a/install/kubernetes/github-actions-cache-server/values.yaml b/install/kubernetes/github-actions-cache-server/values.yaml
index c25b8b6..175f67b 100644
--- a/install/kubernetes/github-actions-cache-server/values.yaml
+++ b/install/kubernetes/github-actions-cache-server/values.yaml
@@ -85,9 +85,9 @@ config:
       # region: us-east-1
       # -- Custom S3 endpoint URL (e.g. for MinIO: "http://minio:9000")
       # endpointUrl: ''
-      # -- AWS access key ID. Can also be provided via existingSecret.
+      # -- AWS access key ID. Can also be provided via existingSecret with key: AWS_ACCESS_KEY_ID.
       # accessKeyId: ''
-      # -- AWS secret access key. Can also be provided via existingSecret.
+      # -- AWS secret access key. Can also be provided via existingSecret with key: AWS_SECRET_ACCESS_KEY.
       # secretAccessKey: ''
       # -- Socket inactivity timeout in milliseconds. Set to 0 to disable.
       socketTimeoutMs: 10000
diff --git a/lib/schemas.ts b/lib/schemas.ts
index bca21c6..a001912 100644
--- a/lib/schemas.ts
+++ b/lib/schemas.ts
@@ -1,14 +1,29 @@
 import { type } from 'arkenv'
 
+const envS3StorageDriverBaseSchema = {
+  'STORAGE_DRIVER': type.unit('s3'),
+  'STORAGE_S3_BUCKET': 'string',
+  'STORAGE_S3_SOCKET_TIMEOUT_MS': 'number.integer >= 0 = 10000',
+  'AWS_REGION': "string = 'us-east-1'",
+  'AWS_ENDPOINT_URL?': 'string.url',
+} as const
+
 export const envStorageDriverSchema = type.or(
   {
-    'STORAGE_DRIVER': type.unit('s3'),
-    'STORAGE_S3_BUCKET': 'string',
-    'STORAGE_S3_SOCKET_TIMEOUT_MS': 'number.integer >= 0 = 10000',
-    'AWS_REGION': "string = 'us-east-1'",
-    'AWS_ENDPOINT_URL?': 'string.url',
-    'AWS_ACCESS_KEY_ID?': 'string',
-    'AWS_SECRET_ACCESS_KEY?': 'string',
+    ...envS3StorageDriverBaseSchema,
+    'AWS_ACCESS_KEY_ID': 'string',
+    'AWS_SECRET_ACCESS_KEY': 'string',
+    'AWS_ROLE_ARN?': 'undefined',
+    'AWS_WEB_IDENTITY_TOKEN_FILE?': 'undefined',
+    'AWS_ROLE_SESSION_NAME?': 'undefined',
+  },
+  {
+    ...envS3StorageDriverBaseSchema,
+    'AWS_ROLE_ARN': 'string',
+    'AWS_WEB_IDENTITY_TOKEN_FILE': 'string',
+    'AWS_ROLE_SESSION_NAME?': 'string',
+    'AWS_ACCESS_KEY_ID?': 'undefined',
+    'AWS_SECRET_ACCESS_KEY?': 'undefined',
   },
   {
     STORAGE_DRIVER: type.unit('filesystem'),
diff --git a/scripts/release-metadata.mjs b/scripts/release-metadata.mjs
index 06cf475..3adc39d 100644
--- a/scripts/release-metadata.mjs
+++ b/scripts/release-metadata.mjs
@@ -44,7 +44,7 @@ async function readMetadata() {
 }
 
 async function bumpChartVersion(bump) {
-  if (!['patch', 'minor', 'major'].includes(bump)) {
+  if (!['patch', 'minor', 'major', 'dev'].includes(bump)) {
     fail(`chart bump must be one of patch, minor, or major, received "${bump ?? ''}"`)
   }
 
@@ -60,13 +60,16 @@ async function bumpChartVersion(bump) {
       ;[minor, patch] = [minor + 1, 0]
       break
     }
-    case 'patch': {
+    case 'patch' || 'dev': {
       patch += 1
       break
     }
   }
 
-  const chartVersion = `${major}.${minor}.${patch}`
+  let chartVersion = `${major}.${minor}.${patch}`
+  if (bump === 'dev') {
+    chartVersion += '-dev'
+  }
   const chart = replaceChartField(
     replaceChartField(metadata.chart, 'version', chartVersion),
     'appVersion',
diff --git a/tests/s3-irsa.test.ts b/tests/s3-irsa.test.ts
new file mode 100644
index 0000000..86e3ed4
--- /dev/null
+++ b/tests/s3-irsa.test.ts
@@ -0,0 +1,34 @@
+import { describe, expect, test } from 'vitest'
+import { envSchema } from '~/lib/schemas'
+
+const baseEnv = {
+  API_BASE_URL: 'http://localhost:3000',
+  DB_DRIVER: 'sqlite',
+  DB_SQLITE_PATH: 'tests/temp/vitest.sqlite',
+  STORAGE_DRIVER: 's3',
+  STORAGE_S3_BUCKET: 'vitest',
+  STORAGE_S3_SOCKET_TIMEOUT_MS: 10_000,
+  AWS_REGION: 'us-east-1',
+} as const
+
+describe.skipIf(process.env.VITEST_STORAGE_DRIVER !== 's3')('test S3 IRSA authentication', () => {
+  test('accepts AWS Web Identity environment variables', () => {
+    expect(() =>
+      envSchema.assert({
+        ...baseEnv,
+        AWS_ROLE_ARN: 'arn:aws:iam::123456789012:role/github-actions-cache-server',
+        AWS_ROLE_SESSION_NAME: 'github-actions-cache-server',
+        AWS_WEB_IDENTITY_TOKEN_FILE: '/var/run/secrets/eks.amazonaws.com/serviceaccount/token',
+      }),
+    ).not.toThrow()
+  })
+
+  test('requires Web Identity settings', () => {
+    expect(() =>
+      envSchema.assert({
+        ...baseEnv,
+        AWS_ROLE_ARN: 'arn:aws:iam::123456789012:role/github-actions-cache-server',
+      }),
+    ).toThrow()
+  })
+})