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}}`