docs/dev/hix.md · haskell.nix

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1# Making changes to Hix

3When making changes to the way Hix works it is often useful to be able to

4test the changes locally before uploading them to github.

6## Hix Command Wrappers

8Install the hix command wrappers after making changes to a local clone of haskell.nix:

10```

11nix-env -iA hix -f /path/to/local/haskell.nix

12hix-shell

13```

15Or override the version of haskell.nix used by the commands with the `HIX_ROOT` environment variable:

17```

18HIX_ROOT=/path/to/local/haskell.nix hix-shell

19```

21## Flakes

23For flakes use `--override-input` to point to the modified haskell.nix:

25```

26nix develop --override-input haskellNix /path/to/local/haskell.nix

27```