tldr/pages/common/nix3-repl.md

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nix repl

Start an interactive environment for evaluating Nix expressions. See https://nixos.org/manual/nix/stable/language/index.html for a description of the Nix expression language. More information: https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-repl.html.

  • Start an interactive environment for evaluating Nix expressions:

nix repl

  • Load all packages from a flake (e.g. nixpkgs) into scope:

:lf {{nixpkgs}}

  • Build a package from an expression:

:b {{expression}}

  • Start a shell with package from the expression available:

:u {{expression}}

  • Start a shell with dependencies of the package from the expression available:

:s {{expression}}