Release performance: Docker image build too slow due to large dev dependencies

[lroolle]

Problem

Docker image builds are slow due to installing extensive development dependencies in the Dockerfile.

Current State

Heavy dependencies installed (Dockerfile:92-117):

• Language runtimes: Python 3.12, Node.js 22, Go 1.22, Rust
• CLI tools: gh, aws, delta, claude, claude-trace
• Build tools: make, cmake, gcc, g++, clang
• Utilities: ripgrep, fzf, bat, eza, neovim

Impact:

• Slow CI/CD builds in GitHub Actions
• Long pull times for users
• Large image size (~2GB+)

Solution Options

Option 1: Multi-stage builds

Use builder stage for compilation, runtime stage for essentials only.

Option 2: Runtime package installation

Environment-driven installation via CLAUDE_INSTALL_PACKAGES env var.

Option 3: Layered image variants

• Base image: claude-code-yolo:base (minimal)
• Full image: claude-code-yolo:full (current)
• Custom: claude-code-yolo:custom (user-defined)

Priority

High - affects developer experience and CI performance.

Related

• DEV-LOGS.md mentions this as enhancement opportunity
• Current approach installs everything regardless of user needs

[lroolle]

Resolved: Docker build caching has been implemented in release workflow with dual GHA + registry cache strategy (commit 0d32837). Performance improvements documented in CHANGELOG.md v0.2.4.