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User Guide

Topics

:titlesonly:
workflows
commands
locking-behavior

Requirements

  • Python: 3.9+ for the appenv script, 3.10+ for managed environments
  • uv: 0.5.0 or later (auto-installed if not found)

New Project

Which install method is right for you?

  • Want the easiest setup? → Use uvx appenv init (pulls latest version from PyPI)
  • No uv available on your machine? → Download appenv script from GitHub directly

All methods give you the same ./appenv file — the only difference is how you get it.

New project using uvx

uvx is part of uv — the easiest way to start:

# appenv init is interactive
# Answer:
# httpie as dependency
# http as binary
uvx appenv init myproject
cd myproject
./http

What just happened?

  • appenv installed itself inplace by adding the ./myproject/appenv script
  • init created pyproject.toml in myproject and a symlink http → appenv
  • ./http runs the http binary from the appenv-managed venv, with pinned versions from uv.lock.

The repository now contains:

myproject/
├── appenv          # The appenv script (single file, committed to git)
├── http -> appenv  # Symlink which tells appenv to run the http binary from the venv
├── .appenv         # appenv-managed venv, logs
├── .venv           # links to .appenv/venv (for standard dev tools)
├── pyproject.toml  # Project config and dependency list
└── uv.lock         # Exact versions of all dependencies (committed to git)

Download appenv directly

Just one file:

mkdir myproject && cd myproject
curl -sL https://raw.githubusercontent.com/flyingcircusio/appenv/master/src/appenv.py -o appenv
chmod +x appenv
# appenv init is interactive
# Answer:
# http as binary
# httpie as dependency
./appenv init

Prereleases

For alpha/beta pre-release versions of appenv, use:

uvx --prerelease allow appenv version

Next Steps