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Reword README.md section on nix develop

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Addresses feedback from @sandydoo https://github.com/cachix/install-nix-action/pull/248#pullrequestreview-3121533041
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Jennings Zhang 2025-08-15 15:14:07 -04:00 • committed by GitHub
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@ -155,14 +155,16 @@ install-nix-action's own `extra_nix_config` input:
substituters = https://hydra.iohk.io https://cache.nixos.org/ substituters = https://hydra.iohk.io https://cache.nixos.org/
``` ```
### How do I use `nix develop`? ### How do I configure steps to use my flake's development environment?
`nix develop` can be used for `steps[*].shell`. You can configure [`jobs.<job_id>.steps[*].shell`](https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-syntax#jobsjob_idstepsshell)
to use `nix develop`.
```yaml ```yaml
# optional step: build devShell in advance for accuracy of subsequent step timing and result # (optional) pre-build the shell separately to avoid skewing the run time of the next
- name: Build devShell # step and have clear point of failure should the shell fail to build
run: nix build --no-link .#devShell.$(uname -m)-linux - name: Pre-build devShell
run: nix build --no-link .#devShells.$(nix eval --impure --raw --expr 'builtins.currentSystem').default
- name: Run a command with nix develop - name: Run a command with nix develop
shell: 'nix develop -c bash -e {0}' shell: 'nix develop -c bash -e {0}'