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fix: duplicated header id
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# Custom NIX_PATH and Flake Registry {#custom-nix-path-and-flake-registry}
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# Custom NIX_PATH and Flake Registry
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## Introduction to NIX_PATH {#nix-path-introduction}
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@ -18,7 +18,7 @@ By default, Nix looks up the corresponding GitHub repository address for this ID
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For instance, if we execute `nix run nixpkgs#ponysay hello`, Nix will automatically retrieve the GitHub repository address for `nixpkgs` from the aforementioned JSON file. It then downloads the repository, locates the `flake.nix` within, and runs the corresponding `ponysay` package.
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## Custom NIX_PATH and Flake Registry {#custom-nix-path-and-flake-registry}
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## Custom NIX_PATH and Flake Registry {#custom-nix-path-and-flake-registry-1}
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The roles of `NIX_PATH` and the Flake Registry have been explained earlier.
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In daily use, we typically want the `nixpkgs` used in commands like `nix repl '<nixpkgs>'`, `nix run nixpkgs#ponysay hello` to match the system's `nixpkgs`. This requires us to customize the `NIX_PATH` and Flake Registry.
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# 自定义 NIX_PATH 与 Flake Registry {#custom-nix-path-and-flake-registry}
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# 自定义 NIX_PATH 与 Flake Registry
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## NIX_PATH 介绍 {#nix-path-introduction}
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@ -19,7 +19,7 @@ Flake Registry 是一个 Flake 注册中心,它可以帮助我们在使用 `ni
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比如说我们执行 `nix run nixpkgs#ponysay hello`,nix 会自动从上述 json 文件中找到 `nixpkgs` 对应的 github 仓库地址,然后下载这个仓库,再通过其中的 `flake.nix` 查找对应的 `ponysay` 包并运行它。
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## 自定义 NIX_PATH 与 Flake Registry {#custom-nix-path-and-flake-registry}
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## 自定义 NIX_PATH 与 Flake Registry {#custom-nix-path-and-flake-registry-2}
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前面说明了 `NIX_PATH` 与 Flake Registry 的作用。
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在日常使用中,我们一般都会希望能在执行 `nix repl '<nixpkgs>'`, `nix run nixpkgs#ponysay hello` 等命令时,使用的 nixpkgs 与系统一致,这就需要我们自定义 `NIX_PATH` 与 Flake Registry。
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