tree b645d7dbc684fe76bcc3c60128dddb68b82902b2
parent c8dc35ea386ec12b6ebe4a8e299f78aef60f9ade
author Skyler Grey <skyler3665@gmail.com> 1661493212 +0100
committer Skyler Grey <skyler3665@gmail.com> 1662287667 +0100
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Allow installing some unfree packages

- Add an environment variable to allow unfree installations
  - The new nix CLI only lets you access this variable with --impure
  - This ensures that you can install unfree packages if you wish, but you must
    always permit it first
- Add a predicate based on the package name
  - Take package names from `internal.allowUnfree` option, allowing us to
    specify unfree packages that can be installed in multiple places
  - Allow installing any unfree packages that have their names in that list
  - *Note: Your predicate must take names, it can't take packages as that causes
    a circular dependency*