FlavorPack Roadmap¶

This roadmap shows the current implementation status and exploratory items for FlavorPack. Use this to understand what works today versus what's under consideration. Roadmap items are non-binding and may change or be removed.

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Legend¶

✅ Implemented - Works today, documented and tested
🚧 In Progress - Partially implemented or under active development
📋 Exploratory - Designed but under evaluation
💡 Proposed - Under consideration; may change or be removed

What Works Today¶

Core Functionality ✅¶

Package Creation:

✅ Build PSPF/2025 packages from Python applications
✅ Embed native Go/Rust launchers
✅ Multiple builder/launcher combinations (Go + Rust)
✅ Cross-platform package building

Package Execution:

✅ Self-extracting executables
✅ Work environment caching with checksum validation
✅ Progressive extraction (extract once, cache forever)
✅ Ed25519 signature verification

CLI Commands:

✅ flavor pack - Create packages
✅ flavor verify - Verify integrity and signatures
✅ flavor inspect - Quick package inspection
✅ flavor extract - Extract single slot
✅ flavor extract-all - Extract all slots
✅ flavor keygen - Generate Ed25519 key pairs
✅ flavor workenv - Cache management (list, info, clean, remove, inspect)
✅ flavor helpers - Helper binary management (list, info, build, clean, test)
✅ flavor clean - Clean caches and artifacts

Manifest Configuration ✅¶

Currently Supported Fields:

[project]
name = "myapp"                    # ✅ Required
version = "1.0.0"                 # ✅ Required
dependencies = [...]              # ✅ Parsed and included

[tool.flavor]
entry_point = "myapp:main"        # ✅ Required (module:function format)
package_name = "custom-name"      # ✅ Optional override

[tool.flavor.metadata]
package_name = "override"         # ✅ Optional

[tool.flavor.build]
dependencies = [...]              # ✅ Build-time dependencies

[tool.flavor.execution.runtime.env]
unset = ["VAR1", "VAR2"]         # ✅ Remove variables
pass = ["HOME", "PATH"]          # ✅ Pass through from host
set = { KEY = "value" }          # ✅ Set variables
map = { OLD = "NEW" }            # ✅ Rename variables

Platform Support ✅¶

Python Packaging ✅¶

✅ Standard pyproject.toml manifest parsing
✅ Dependency resolution via UV
✅ Entry point detection and configuration
✅ CLI script extraction from [project.scripts]

Security & Integrity ✅¶

✅ Ed25519 signature generation and verification
✅ SHA-256 checksums for all slots
✅ Package integrity validation
✅ Key generation via flavor keygen
✅ Signing via CLI options (--private-key, --public-key)

Format Specification ✅¶

✅ PSPF/2025 format implemented
✅ 64-byte SlotDescriptor binary format
✅ 8KB index block with metadata
✅ Operation chains (packed uint64 format)
✅ Magic markers for format identification
✅ Cross-language format compatibility (Python/Go/Rust)

Exploratory Features¶

The following features are documented in guides but are under evaluation. They represent potential evolution of FlavorPack.

Manifest Configuration Features 📋¶

Build Host Redaction¶

Allow opting out of emitting build.platform.host in metadata for privacy or reproducible builds.

Status: 📋 Exploratory Priority: High Complexity: Low

Slot Configuration¶

[[tool.flavor.slots]]
id = "config"
source = "config/"
purpose = "configuration"
lifecycle = "persistent"
extract_to = "{workenv}/config"
permissions = "0644"

Status: 📋 Exploratory Use Case: Enable custom slot purposes, lifecycles, platform-specific slots, and lazy-loaded content

Python Version Selection¶

[tool.flavor.python]
version = "3.11"  # Exact version to use
min_version = "3.11"  # Minimum acceptable
max_version = "3.13"  # Maximum acceptable

Status: 🔶 Exploratory Priority: Medium Complexity: Medium

Build Environment Configuration¶

[tool.flavor.build]
# Custom venv location
venv_path = ".flavor-venv"

# Use system site packages
system_site_packages = false

# Environment variables for build
env = {
    "NUMPY_SETUP_DEBUG": "1",
    "UV_NO_CACHE": "1"
}

# Pre-install commands
pre_install_commands = [
    "uv sync --upgrade",
    "uv add numpy==1.24.0"
]

# Pre-build validation
pre_build_commands = [
    "pytest tests/ -v",
    "mypy src/ --strict"
]

Status: 🔶 Exploratory Priority: High Complexity: Medium

Dependency Resolution Options¶

[tool.flavor.build]
# Custom index URL
index_url = "https://pypi.company.com/simple"

# Extra index URLs
extra_index_urls = [
    "https://pypi.org/simple"
]

# Trusted hosts
trusted_hosts = [
    "pypi.company.com"
]

Status: 🔶 Exploratory Priority: Medium Complexity: Low-Medium

Runtime Optimization¶

Code Optimization Settings¶

[tool.flavor.runtime]
# Python optimization level
optimization_level = 2  # -OO flag

# Compile .py to .pyc
compile_bytecode = true

# Strip docstrings
strip_docstrings = true

Status: 🔶 Exploratory Priority: Low Complexity: Low

Dependency Optimization¶

[tool.flavor.build]
# Exclude test/docs from dependencies
exclude_from_deps = [
    "*/tests/*",
    "*/test/*",
    "*/docs/*"
]

# Only runtime dependencies
no_dev_deps = true

# Requirements lockfile
requirements_file = "requirements.lock"

Status: 🔶 Exploratory Priority: Medium Complexity: Medium

Advanced Slot Configuration¶

Lifecycle-Based Loading¶

[[tool.flavor.slots]]
id = "heavy-models"
source = "models/"
lifecycle = "lazy"  # Load only when accessed

[[tool.flavor.slots]]
id = "tests"
source = "tests/"
lifecycle = "volatile"  # Don't persist between runs

[[tool.flavor.slots]]
id = "config"
source = "config/"
lifecycle = "persistent"  # Keep across runs

Status: 🔶 Exploratory Priority: Medium Complexity: High

Platform-Specific Slots¶

[[tool.flavor.slots]]
id = "native-libs"
source = "libs/linux/"
target = "lib/"
platform = "linux"

[[tool.flavor.slots]]
id = "native-libs-mac"
source = "libs/darwin/"
target = "lib/"
platform = "darwin"

Status: 🔶 Exploratory Priority: Medium Complexity: Medium

Platform-Specific Builds¶

Platform Build Configuration¶

[tool.flavor.build.platform.linux_amd64]
env = {
    "CFLAGS": "-O3 -march=x86-64",
    "LDFLAGS": "-Wl,-rpath,$ORIGIN"
}

[tool.flavor.build.platform.darwin_arm64]
env = {
    "ARCHFLAGS": "-arch arm64",
    "MACOSX_DEPLOYMENT_TARGET": "11.0"
}

Status: 🔶 Exploratory Priority: Low Complexity: Medium

Environment and Runtime Features¶

Persistent Service Mode¶

[tool.flavor.runtime]
# Keep server running
persistent = true

# Port configuration
port = 8000

Status: 📋 Exploratory Priority: Medium Complexity: High

Advanced Environment Control¶

[tool.flavor.execution.runtime.env]
# Clear all host environment
unset = ["*"]

# Pass through specific variables
pass = ["HOME", "USER", "TERM"]

# Set application variables
set = {
    PYTHONPATH = "$FLAVOR_WORKENV/lib",
    DEBUG = "0"
}

# Map/rename variables
[tool.flavor.execution.runtime.env.map]
OLD_VAR = "NEW_VAR"

Status: 🟢 Partially Implemented Priority: High Complexity: Medium Note: Basic environment control exists, advanced features under evaluation

Format Enhancements¶

Binary Format Improvements¶

Compression Options¶

[[tool.flavor.slots]]
id = "data"
source = "data/"
compression = "zstd"  # Specific compression
compression_level = 19  # Maximum compression

Status: 🟡 Basic Implementation Priority: Low Complexity: Low Note: Compression exists but not configurable

Encryption Support¶

[[tool.flavor.slots]]
id = "secrets"
source = "secrets/"
encryption = "aes256"
key_source = "env:ENCRYPTION_KEY"

Status: 🔴 Not Started Priority: Medium Complexity: High Note: See FEP-0001 for encryption operation codes

Multi-Platform Packages¶

Universal Binaries¶

Create packages that work across multiple platforms in a single file:

[tool.flavor]
platforms = ["linux_amd64", "darwin_arm64", "windows_amd64"]

[[tool.flavor.launchers]]
platform = "linux_amd64"
binary = "dist/bin/launcher-linux"

[[tool.flavor.launchers]]
platform = "darwin_arm64"
binary = "dist/bin/launcher-darwin"

Status: 🔴 Not Started Priority: Low Complexity: Very High Blockers: Format specification changes required

CLI and Tooling Enhancements¶

Package Management Commands¶

helpers build --platform¶

Build helpers for specific platforms from CLI:

flavor helpers build --platform linux_amd64
flavor helpers build --platform darwin_arm64 --lang rust

Status: 🔴 Not Started Priority: Low Complexity: Medium Note: Currently documented but not implemented

helpers test¶

Comprehensive helper testing:

flavor helpers test
flavor helpers test --helper flavor-rs-launcher-darwin_arm64
flavor helpers test --verbose

Status: 🟡 Basic Implementation Priority: Low Complexity: Low Note: Command exists but may not be fully functional

Advanced Inspection¶

Dependency Visualization¶

flavor inspect myapp.psp --show-deps
flavor inspect myapp.psp --dependency-tree

Status: 🔴 Not Started Priority: Low Complexity: Medium

Slot Analysis¶

flavor inspect myapp.psp --slot-details

Status: 🔴 Not Started Priority: Low Complexity: Low

Integration Features¶

Build System Integration¶

Setup.py Support¶

Support for legacy setup.py in addition to pyproject.toml:

flavor pack --manifest setup.py

Status: 🔴 Not Started Priority: Very Low Complexity: Medium Note: Modern projects should use pyproject.toml

Poetry Integration¶

Native support for Poetry configurations:

flavor pack --manifest poetry.lock

Status: 🔴 Not Started Priority: Low Complexity: Medium

CI/CD Templates¶

Pre-built CI/CD configurations:

GitHub Actions workflow templates
GitLab CI/CD templates
Jenkins pipeline examples

Status: 🔴 Not Started Priority: Medium Complexity: Low Note: Documentation task, not implementation

Testing and Quality¶

Test Inclusion¶

[tool.flavor.build]
# Include tests in package
include_tests = true

[[tool.flavor.slots]]
id = "tests"
source = "tests/"
purpose = "tests"
lifecycle = "volatile"

Status: 🔴 Not Started Priority: Low Complexity: Low

Package Validation¶

# Validate package before distribution
flavor pack --validate-before-sign

# Run smoke tests on packaged app
flavor pack --test-command "pytest tests/smoke/"

Status: 🔴 Not Started Priority: Medium Complexity: Medium

Documentation Improvements¶

API Documentation Generation¶

Auto-generate API docs from code:

Complete docs/api/packaging.md
Complete docs/api/builder.md
Complete docs/api/reader.md
Complete docs/api/crypto.md

Status: 🟡 In Progress Priority: High Complexity: Low Note: Stub pages exist, need full content

Interactive Examples¶

Live, runnable examples in documentation:

# Try FlavorPack online
flavor demo hello-world
flavor demo web-app
flavor demo cli-tool

Status: 🔴 Not Started Priority: Low Complexity: Medium

Advanced Features¶

Supply Chain Security¶

See FEP-0004: Supply Chain JIT:

Reproducible builds with attestation
SBOM (Software Bill of Materials) generation
Provenance tracking
Signature chains

Status: 🔴 Not Started Priority: Medium Complexity: Very High

Runtime JIT Loading¶

See FEP-0005: Runtime JIT Loading:

Lazy loading of dependencies
On-demand extraction
Streaming execution

Status: 🔴 Not Started Priority: Low Complexity: Very High

Staged Payload Architecture¶

See FEP-0006: Staged Payload Architecture:

Multi-stage package execution
Progressive enhancement
Delta updates

Status: 🔴 Not Started Priority: Low Complexity: Very High

Community and Ecosystem¶

Package Registry¶

Public registry for sharing PSPF packages:

flavor publish myapp.psp
flavor install popular-package

Status: 🔴 Not Started Priority: Low Complexity: Very High Blockers: Requires infrastructure

Plugin System¶

Extend FlavorPack with plugins:

flavor plugin install compression-extras
flavor plugin install cloud-deploy

Status: 🔴 Not Started Priority: Low Complexity: High

Legend¶

✅ Implemented - Feature is complete and tested
🟢 Partially Implemented - Basic functionality exists
🟡 In Progress - Actively being developed
🔶 Exploratory - Design complete, awaiting implementation
🔴 Not Started - Concept only, no implementation

Contributing¶

Want to help implement these features? Check out:

Feature requests and discussions are welcome in the GitHub Discussions.

FlavorPack Roadmap¶

Legend¶

What Works Today¶

Core Functionality ✅¶

Manifest Configuration ✅¶

Platform Support ✅¶

Python Packaging ✅¶

Security & Integrity ✅¶

Format Specification ✅¶

Exploratory Features¶

Manifest Configuration Features 📋¶

Build Host Redaction¶

Slot Configuration¶

Python Version Selection¶

Build Environment Configuration¶

Dependency Resolution Options¶

Runtime Optimization¶

Code Optimization Settings¶

Dependency Optimization¶

Advanced Slot Configuration¶

Lifecycle-Based Loading¶

Platform-Specific Slots¶

Platform-Specific Builds¶

Platform Build Configuration¶

Environment and Runtime Features¶

Persistent Service Mode¶

Advanced Environment Control¶

Format Enhancements¶

Binary Format Improvements¶

Compression Options¶

Encryption Support¶

Multi-Platform Packages¶

Universal Binaries¶

CLI and Tooling Enhancements¶

Package Management Commands¶

helpers build --platform¶

helpers test¶

Advanced Inspection¶

Dependency Visualization¶

Slot Analysis¶

Integration Features¶

Build System Integration¶

Setup.py Support¶

Poetry Integration¶

CI/CD Templates¶

Testing and Quality¶

Test Inclusion¶

Package Validation¶

Documentation Improvements¶

API Documentation Generation¶

Interactive Examples¶

Advanced Features¶

Supply Chain Security¶

Runtime JIT Loading¶

Staged Payload Architecture¶

Community and Ecosystem¶

Package Registry¶

Plugin System¶

Legend¶

Contributing¶

See Also¶