# Runtime and configuration support

Source: https://libtmux.org/en/py/stable/workspace/reference/compatibility/

> Runtime, configuration and extension requirements for tmuxp.

These pages document tmuxp 1.74.0 at the source revision linked below. Install
tmuxp in its own Python environment and let its dependency resolver select a
compatible libtmux release. The walkthroughs use Python 3.10 or newer and
tmux 3.2a or newer.

## Configuration and extensions

Read [configuration](https://libtmux.org/en/py/stable/workspace/configuration/) for normalization, inheritance,
directories, commands and hooks. Parsing YAML alone does not establish that
a field changes builder behavior. Plugins and custom builders execute Python
code from their installed packages or configured import paths.

The [inspection shell](https://libtmux.org/en/py/stable/workspace/cli/shell/) runs in the same Python environment.
Optional interactive backends need their corresponding packages installed.

## Output and errors

Machine formats are command-specific. Read [output](https://libtmux.org/en/py/stable/workspace/reference/output/) and
[exit codes](https://libtmux.org/en/py/stable/workspace/reference/exit-codes/) for empty output and status exceptions before
using tmuxp in automation.

Capture reads current tmux state; it cannot recover original scripts,
application state or comments. Review captured commands and directories before
reloading. Gallery examples may require their named applications or plugins.

Use [builder internals](https://libtmux.org/en/py/stable/workspace/internals/) for programmatic construction and
extension development.

[Command source](https://github.com/tmux-python/tmuxp/blob/618b398acc05506d3c682906c36cdeb29dcfa1ff/src/tmuxp/cli/__init__.py).