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FZX2 (507ex 2.0) is a command-line tool that packages directories into portable .507ex executables — self-contained bundles with embedded metadata, hash verification, and automatic dependency installation. You can run them locally or pull them directly from a Central Application Repository (CAR) server with a single command.

Installation

Install FZX2 via pip or from source in under a minute

Quickstart

Build and run your first 507ex executable step by step

CLI Reference

Every command documented with flags and real examples

CAR Server

Host and distribute executables remotely with authentication

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What is FZX2?

FZX2 packages a directory of scripts and assets into a single .507ex file. The format stores a BLAKE2s hash for integrity verification, a UUID for tracking, a creation timestamp, and an optional dependency list — all in a human-readable metadata header prepended to a ZIP archive of your source files.

Executable Format

Understand the 507ex file structure and metadata fields

Dependency Files

Automatically install dependencies when an executable runs

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Key features

  • Portable bundles — pack any directory into a single .507ex file
  • Integrity verification — BLAKE2s hash checked at execution time
  • Auto dependency management — dependencies embedded and installed on first run
  • Remote execution — pull and run executables directly from a CAR server URL
  • Secret-code auth — CAR server protects downloads with hashed secret codes
  • pip installable — pip install fzx2 gives you the fzx2 command globally

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