REPL

devenv repl opens an interactive Nix REPL with your devenv environment fully loaded.

Usage

$ devenv repl

This assembles your devenv configuration and drops you into a Nix REPL where you can explore:

• config — the final resolved devenv configuration
• pkgs — the nixpkgs package set
• Any other inputs defined in devenv.yaml

Examples

nix-repl> config.packages
[ «derivation /nix/store/...» ]

nix-repl> config.languages.python.enable
true

nix-repl> pkgs.hello.version
"2.12.1"

The REPL is useful for debugging configuration, inspecting option values, and exploring what is available in your inputs.