feat: Introduce multi-architecture Alpine Docker images with NVM, Bun, and Deno support

changelog.md

@@ -1,5 +1,44 @@
 # Changelog
 
+## 2025-10-26 - 5.0.148 - feat(alpine)
+Major restructuring: Multi-architecture Alpine Docker images with modern runtime support
+
+**Breaking Changes:**
+- Removed `Dockerfile_alpine` (replaced by `Dockerfile_alpine_node`)
+- Removed `Dockerfile_iot` (no longer needed with multi-arch approach)
+- Tag naming simplified: `:alpine-node` instead of `:alpine-x64-node` and `:alpine-arm64-node`
+
+**New Multi-Architecture Alpine Images (3 variants):**
+
+All images support both amd64 and arm64 architectures natively:
+- `Dockerfile_alpine_node` → `:alpine-node` - Alpine with Node.js LTS + NVM + pnpm
+- `Dockerfile_alpine_deno` → `:alpine-deno` - Alpine with Node.js LTS + NVM + Deno
+- `Dockerfile_alpine_bun` → `:alpine-bun` - Alpine with Node.js LTS + NVM + Bun
+
+**Technical Improvements:**
+- **Multi-architecture support**: Single Docker image works natively on both x64 (AMD64) and ARM64 (Apple Silicon, ARM servers)
+- **docker buildx integration**: Build script uses buildx for proper multi-platform image creation
+- **Native performance**: No emulation needed - images run at full native speed on both architectures
+- **Automatic platform selection**: Docker automatically pulls the correct architecture variant
+- Full NVM support in all Alpine images (v0.40.1)
+- Node.js musl builds from unofficial-builds.nodejs.org for Alpine compatibility
+- Significantly smaller image sizes (200-300MB vs 800MB+ Ubuntu)
+- All images include NVM for flexible version management
+- Reused wrapper scripts from Ubuntu base for consistency
+- Added Bun and Deno runtime support
+
+**Build & Test Infrastructure:**
+- Updated `build-alpine-images.sh` to use `docker buildx` with native platform builds for local testing
+- Updated `test-alpine-images.sh` to test 3 multi-arch images instead of 9 architecture-specific images
+- Simplified test suite focuses on runtime functionality and NVM version switching
+
+**Documentation:**
+- Updated README with multi-architecture approach explanation
+- Simplified examples using new tag names (`:alpine-node`, `:alpine-deno`, `:alpine-bun`)
+- Added cross-platform development examples
+- Documented native performance benefits
+- Removed architecture-specific instructions (no longer needed)
+
 ## 2025-10-26 - 5.0.147 - feat(nvm)
 Enable full nvm support in Docker builds and CI/CD workflows