feat: replace custom auto-install shim with mise for on-demand tools#6
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gabemeola
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Jun 24, 2026
gabemeola
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- Add mise config (mise-config.toml) with pre-approved tools via brew backend
- Install mise in builder stage, pre-install tools, copy to final
- Set MISE_DATA_DIR=/opt/mise (outside home, not shadowed by volume)
- Enable always_install setting for auto-install on first use
- Add mise activation to .bashrc
- Remove old brew-auto-install.conf and brew-install-handler.sh
- Remove gh from apt install (now managed by mise via brew)
- Add mise config (mise-config.toml) with pre-approved tools via brew backend - Install mise in builder stage, pre-install tools, copy to final - Set MISE_DATA_DIR=/opt/mise (outside home, not shadowed by volume) - Enable always_install setting for auto-install on first use - Add mise activation to .bashrc - Remove old brew-auto-install.conf and brew-install-handler.sh - Remove gh from apt install (now managed by mise via brew)
…rew as opencode user - MISE_INSTALL_PATH (not MISE_INSTALL_DIR) is the correct env var - Pre-install gh/glab via sudo -u opencode brew instead of mise install (builder runs as root, brew is owned by opencode) - Remove mise settings set; use MISE_ALWAYS_INSTALL=1 env var instead - Add HOMEBREW_NO_AUTO_UPDATE=1 to brew install in builder
- HOMEBREW_INSTALL_FROM_API=1 lets brew install any formula via JSON API without needing a local tap, so we can strip the entire homebrew-core (saves ~20MB) - brew install at runtime works for any formula, including ones added to homebrew-core after the image was built - No git operations needed, so .git removal is no longer relevant
- Keep homebrew-core with .git intact (brew update requires it) - Remove HOMEBREW_INSTALL_FROM_API=1 (no longer needed with local tap) - Keep other size optimizations (test, cask, portable-ruby, gem cache)
With HOMEBREW_INSTALL_FROM_API=1: - brew update downloads API JSON (fast, no git needed) - brew install fetches formula metadata from API cache - brew install works for any formula immediately - Homebrew-core tap can be stripped entirely (saves ~100MB) This is actually better than keeping the local tap.
… mise - Remove ruby, wget, jq, ripgrep, fd-find, vim-tiny, nano from apt - Keep portable-ruby (brew needs it with system ruby removed) - Move brew install gh glab before stripping homebrew-core tap - Add all moved tools to mise-config.toml - Update README tables and notes
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Docker image size comparison
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…-iscsi and .deb cache
…requires it at startup)
…efixed tools like brew:gh)
…stall with MISE_ALWAYS_INSTALL=1)
…hims dir to PATH via ENV
…t manage/delete them
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