diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..8d8fc8d
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,23 @@
+name: Build
+
+on:
+  push:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  compile-tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        environment: ["test_template_engine_8266", "test_template_engine_esp32"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - run: python -m pip install --upgrade platformio==6.1.19
+      - run: pio test -e ${{ matrix.environment }} --without-uploading --without-testing
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..9126114
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,23 @@
+name: Publish release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - run: python -m pip install --upgrade platformio==6.1.19
+      - run: ./scripts/prepare-release.sh "$GITHUB_REF_NAME"
+      - run: gh release create "$GITHUB_REF_NAME" --generate-notes --title "$GITHUB_REF_NAME"
+        env:
+          GH_TOKEN: ${{ github.token }}
diff --git a/include/DeviceFrameworkPlaceholderRegistry.h b/include/DeviceFrameworkPlaceholderRegistry.h
index af26bcd..52ef90f 100644
--- a/include/DeviceFrameworkPlaceholderRegistry.h
+++ b/include/DeviceFrameworkPlaceholderRegistry.h
@@ -26,23 +26,13 @@
   #define DFTE_RAM_CHUNK_SIZE_DEFAULT 128
 #endif
 
-// Use DeviceFramework config defaults at compile-time if available, otherwise use internal defaults
-#ifdef DEVICEFRAMEWORK_CONFIG_H
-  // DeviceFramework is present - use config defaults
-  // DeviceFrameworkConfig.h must be included before this file to access CONFIG_*_default macros
-  #ifdef CONFIG_templateProgmemChunkSize_default
-    #define DFTE_PROGMEM_CHUNK_SIZE CONFIG_templateProgmemChunkSize_default
-  #else
-    #define DFTE_PROGMEM_CHUNK_SIZE DFTE_PROGMEM_CHUNK_SIZE_DEFAULT
-  #endif
-  #ifdef CONFIG_templateRamChunkSize_default
-    #define DFTE_RAM_CHUNK_SIZE CONFIG_templateRamChunkSize_default
-  #else
-    #define DFTE_RAM_CHUNK_SIZE DFTE_RAM_CHUNK_SIZE_DEFAULT
-  #endif
-#else
-  // Standalone usage - use internal defaults
+// Chunk settings are build-wide DFTE_* flags. They are not inferred from a
+// consumer header so library and consumer translation units remain consistent.
+#ifndef DFTE_PROGMEM_CHUNK_SIZE
   #define DFTE_PROGMEM_CHUNK_SIZE DFTE_PROGMEM_CHUNK_SIZE_DEFAULT
+#endif
+
+#ifndef DFTE_RAM_CHUNK_SIZE
   #define DFTE_RAM_CHUNK_SIZE DFTE_RAM_CHUNK_SIZE_DEFAULT
 #endif
 
diff --git a/include/DeviceFrameworkTemplateContext.h b/include/DeviceFrameworkTemplateContext.h
index e5fb0c4..31ca80c 100644
--- a/include/DeviceFrameworkTemplateContext.h
+++ b/include/DeviceFrameworkTemplateContext.h
@@ -20,27 +20,13 @@
   #define DFTE_PLACEHOLDER_NAME_SIZE_DEFAULT 24
 #endif
 
-// Use DeviceFramework config defaults at compile-time if available, otherwise use internal defaults
-// Array sizes must be compile-time constants
-#ifdef DEVICEFRAMEWORK_CONFIG_H
-  // DeviceFramework is present - use config defaults for array sizing
-  // DeviceFrameworkConfig.h must be included before this file to access CONFIG_*_default macros
-  #ifdef CONFIG_templateStackDepth_default
-    #define DFTE_MAX_STACK_DEPTH CONFIG_templateStackDepth_default
-  #else
-    #define DFTE_MAX_STACK_DEPTH DFTE_MAX_STACK_DEPTH_DEFAULT
-  #endif
-  #ifdef CONFIG_templateBufferSize_default
-    #define DFTE_BUFFER_SIZE CONFIG_templateBufferSize_default
-  #else
-    #define DFTE_BUFFER_SIZE DFTE_BUFFER_SIZE_DEFAULT
-  #endif
-  // DFTE_PLACEHOLDER_NAME_SIZE is already defined in DeviceFrameworkTemplateTypes.h
-#else
-  // Standalone usage - use internal defaults
+// Layout-affecting settings must be supplied through build-wide DFTE_* flags.
+#ifndef DFTE_MAX_STACK_DEPTH
   #define DFTE_MAX_STACK_DEPTH DFTE_MAX_STACK_DEPTH_DEFAULT
+#endif
+
+#ifndef DFTE_BUFFER_SIZE
   #define DFTE_BUFFER_SIZE DFTE_BUFFER_SIZE_DEFAULT
-  // DFTE_PLACEHOLDER_NAME_SIZE is already defined in DeviceFrameworkTemplateTypes.h
 #endif
 
 // Forward declaration
diff --git a/include/DeviceFrameworkTemplateRenderer.h b/include/DeviceFrameworkTemplateRenderer.h
index 6ee8b1b..18acebe 100644
--- a/include/DeviceFrameworkTemplateRenderer.h
+++ b/include/DeviceFrameworkTemplateRenderer.h
@@ -10,17 +10,8 @@
   #define DFTE_MAX_ITERATIONS_DEFAULT 50
 #endif
 
-// Use DeviceFramework config defaults at compile-time if available, otherwise use internal defaults
-#ifdef DEVICEFRAMEWORK_CONFIG_H
-  // DeviceFramework is present - use config defaults
-  // DeviceFrameworkConfig.h must be included before this file to access CONFIG_*_default macros
-  #ifdef CONFIG_templateMaxIterations_default
-    #define DFTE_MAX_ITERATIONS CONFIG_templateMaxIterations_default
-  #else
-    #define DFTE_MAX_ITERATIONS DFTE_MAX_ITERATIONS_DEFAULT
-  #endif
-#else
-  // Standalone usage - use internal defaults
+// Renderer settings are build-wide DFTE_* flags.
+#ifndef DFTE_MAX_ITERATIONS
   #define DFTE_MAX_ITERATIONS DFTE_MAX_ITERATIONS_DEFAULT
 #endif
 
diff --git a/include/DeviceFrameworkTemplateTypes.h b/include/DeviceFrameworkTemplateTypes.h
index 9e4198a..4eeb5a6 100644
--- a/include/DeviceFrameworkTemplateTypes.h
+++ b/include/DeviceFrameworkTemplateTypes.h
@@ -9,18 +9,10 @@
   #define DFTE_PLACEHOLDER_NAME_SIZE_DEFAULT 24
 #endif
 
-// Use DeviceFramework config defaults at compile-time if available, otherwise use internal defaults
-// Array sizes must be compile-time constants
-#ifdef DEVICEFRAMEWORK_CONFIG_H
-  // DeviceFramework is present - use config defaults for array sizing
-  // DeviceFrameworkConfig.h must be included before this file to access CONFIG_*_default macros
-  #ifdef CONFIG_templatePlaceholderNameSize_default
-    #define DFTE_PLACEHOLDER_NAME_SIZE CONFIG_templatePlaceholderNameSize_default
-  #else
-    #define DFTE_PLACEHOLDER_NAME_SIZE DFTE_PLACEHOLDER_NAME_SIZE_DEFAULT
-  #endif
-#else
-  // Standalone usage - use internal defaults
+// Layout-affecting settings must be passed as build-wide DFTE_* flags so every
+// translation unit sees the same object layout. DeviceFramework runtime config is
+// intentionally not used for fixed-size storage.
+#ifndef DFTE_PLACEHOLDER_NAME_SIZE
   #define DFTE_PLACEHOLDER_NAME_SIZE DFTE_PLACEHOLDER_NAME_SIZE_DEFAULT
 #endif
 
diff --git a/library.json b/library.json
index 9a42420..cfacc5f 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "DeviceFrameworkTemplateEngine",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Memory-efficient streaming template engine for ESP8266/ESP32 with chunked rendering support. Designed for embedded web interfaces with PROGMEM template support.",
   "keywords": [
     "template",
@@ -24,7 +24,15 @@
   ],
   "license": "MIT",
   "frameworks": "arduino",
-  "platforms": ["espressif8266", "espressif32"],
-  "dependencies": {}
+  "platforms": [
+    "espressif8266",
+    "espressif32"
+  ],
+  "dependencies": {},
+  "$schema": "https://raw.githubusercontent.com/platformio/platformio-core/develop/platformio/assets/schema/library.json",
+  "homepage": "https://github.com/alexhopeoconnor/DFTE",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/alexhopeoconnor/DFTE.git"
+  }
 }
-
diff --git a/platformio.ini b/platformio.ini
index 9b1852d..9798795 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -9,7 +9,7 @@ test_framework = unity
 test_build_src = yes
 
 [env:test_template_engine_esp32]
-platform = espressif32@5.3.0
+platform = espressif32@6.13.0
 board = nodemcu-32s
 framework = arduino
 test_framework = unity
diff --git a/scripts/prepare-release.sh b/scripts/prepare-release.sh
new file mode 100755
index 0000000..e371f99
--- /dev/null
+++ b/scripts/prepare-release.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+usage() {
+    echo "Usage: $0 vMAJOR.MINOR.PATCH [--tag]"
+    exit 2
+}
+
+tag="${1:-}"
+[[ "$tag" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]] || usage
+[[ "${2:-}" == "" || "${2:-}" == "--tag" ]] || usage
+
+root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+version="${tag#v}"
+manifest_version="$(sed -n 's/.*"version": "\([^"]*\)".*/\1/p' "$root/library.json" | head -n 1)"
+
+if [[ "$manifest_version" != "$version" ]]; then
+    echo "library.json is $manifest_version; expected $version for $tag" >&2
+    exit 1
+fi
+
+if [[ -f "$root/library.properties" ]]; then
+    properties_version="$(sed -n 's/^version=//p' "$root/library.properties" | head -n 1)"
+    if [[ "$properties_version" != "$version" ]]; then
+        echo "library.properties is $properties_version; expected $version for $tag" >&2
+        exit 1
+    fi
+fi
+
+package_dir="$(mktemp -d)"
+trap 'rm -rf "$package_dir"' EXIT
+pio pkg pack "$root" --output "$package_dir/package.tar.gz" >/dev/null
+echo "Validated PlatformIO package for $tag"
+
+if [[ "${2:-}" == "--tag" ]]; then
+    git -C "$root" diff --quiet
+    git -C "$root" diff --cached --quiet
+    git -C "$root" tag -a "$tag" -m "Release $tag"
+    echo "Created $tag. Push the branch and tag; GitHub Actions will publish the release."
+fi