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<ol class="chapter"><li class="chapter-item expanded "><a href="../doc/introduction.html"><strong aria-hidden="true">1.</strong> Introduction</a></li><li class="chapter-item expanded "><a href="../doc/start/quick-start.html"><strong aria-hidden="true">2.</strong> Quick Start</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../doc/start/iso.html"><strong aria-hidden="true">2.1.</strong> ISO</a></li><li class="chapter-item expanded "><a href="../doc/start/from-nixos.html"><strong aria-hidden="true">2.2.</strong> From NixOS</a></li></ol></li><li class="chapter-item expanded "><div><strong aria-hidden="true">3.</strong> Layout</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="../hosts/index.html"><strong aria-hidden="true">3.1.</strong> Hosts</a></li><li class="chapter-item expanded "><a href="../profiles/index.html" class="active"><strong aria-hidden="true">3.2.</strong> Profiles</a></li><li class="chapter-item expanded "><a href="../suites/index.html"><strong aria-hidden="true">3.3.</strong> Suites</a></li><li class="chapter-item expanded "><a href="../users/index.html"><strong aria-hidden="true">3.4.</strong> Users</a></li><li class="chapter-item expanded "><a href="../cachix/index.html"><strong aria-hidden="true">3.5.</strong> Cachix</a></li></ol></li></ol>
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<main>
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<h1><a class="header" href="#profiles" id="profiles">Profiles</a></h1>
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<p>Profiles are simply NixOS modules which contain generic expressions suitable
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for any host. A good example is the configuration for a text editor, or
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window manager. If you need some concrete examples, just checkout the
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community <a href="https://github.com/nrdxp/nixflk/tree/community/profiles">branch</a>.</p>
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<h2><a class="header" href="#constraints" id="constraints">Constraints</a></h2>
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<p>For the sake of consistency, there are a few minor constraints. First of all, a
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profile should always be defined in a <code>default.nix</code>, and it should always be a
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a function taking a single attribute set as an argument, and returning a NixOS
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module which does not define any new module options. If you need to make new
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module option declarations, just use <a href="./modules.html">modules</a>.</p>
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<p>These restrictions help simplify the import logic used to pass profles to
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<a href="./suites.html">suites</a>.</p>
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<h3><a class="header" href="#example" id="example">Example</a></h3>
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<p>✔<code>profiles/develop/default.nix</code>:</p>
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<pre><code class="language-nix"># good profile definition
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{ ... }:
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{
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programs.zsh.enable = true;
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}
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</code></pre>
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<p>❌<code>profiles/develop.nix</code>:</p>
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<pre><code># bad profile definition
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{
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options = {};
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}
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</code></pre>
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<h2><a class="header" href="#subprofiles" id="subprofiles">Subprofiles</a></h2>
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<p>Profiles can also define subprofiles. They follow the same constraints outlined
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above. A good top level profile should be a high level concern, such a your
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personal development environment, and the subprofiles should be more concrete
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program configurations such as your text editor, and shell configs. This way,
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you can either pull in the whole development profile, or pick and choose
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individual programs.</p>
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<h2><a class="header" href="#conclusion" id="conclusion">Conclusion</a></h2>
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<p>Profiles are the most important concept in nixflk. They allow us to keep our
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nix expressions self contained and modular. This way we can maximize reuse
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while minimizing boilerplate. Always strive to keep your profiles as generic
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and modular as possible. Anything machine specific belongs in your
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<a href="./hosts.html">host</a> files.</p>
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