diff --git a/flake.lock b/flake.lock
index 0df8e9f0..4bdc8a9f 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,12 +2,12 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1726447378,
-        "narHash": "sha256-2yV8nmYE1p9lfmLHhOCbYwQC/W8WYfGQABoGzJOb1JQ=",
-        "rev": "086b448a5d54fd117f4dc2dee55c9f0ff461bdc1",
-        "revCount": 635167,
+        "lastModified": 1729973466,
+        "narHash": "sha256-knnVBGfTCZlQgxY1SgH0vn2OyehH9ykfF8geZgS95bk=",
+        "rev": "cd3e8833d70618c4eea8df06f95b364b016d4950",
+        "revCount": 636163,
         "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2405.635167%2Brev-086b448a5d54fd117f4dc2dee55c9f0ff461bdc1/0192005b-cf99-7543-8e3a-deb3339dad33/source.tar.gz"
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2405.636163%2Brev-cd3e8833d70618c4eea8df06f95b364b016d4950/0192cd43-85cd-7ff3-b9be-a3f7995e917d/source.tar.gz"
       },
       "original": {
         "type": "tarball",
diff --git a/src/pages/concepts/nix.mdx b/src/pages/concepts/nix.mdx
index 776272e3..68a88eeb 100644
--- a/src/pages/concepts/nix.mdx
+++ b/src/pages/concepts/nix.mdx
@@ -2,7 +2,7 @@
 title: Nix
 wip: true
 snippet: |
-  A build tool, [package manager](/concepts/package-management), and [programming language](/concepts/nix-language)
+  A CLI, [package manager](/concepts/package-management), and [programming language](/concepts/nix-language)
 related: ["nix-language", "nixos", "nixpkgs"]
 externalSources: [
   {
@@ -44,11 +44,22 @@ externalSources: [
 ]
 ---
 
-*Nix* refers to a few different things:
+[*Nix*][nix] can be a somewhat confusing term because it refers to multiple things:
 
 1. The pure and functional [programming language][lang]
 2. The [Nix CLI](#cli)
-3. The overall Nix package management system
+3. The overall Nix [package management system][package-management]
+
+All of these are closely interrelated and should be thought of as a single tool.
+In this document, we'll go over each of these three aspects of Nix.
+
+<Admonition info open title="Nix and open source" id="nix-oss" client:load>
+The Nix project is fully open source and largely developed within the [`NixOS`][nixos-org] organization on [GitHub].
+It's licensed under [LGPL 2.1][license], which is generally quite permissive regarding commercial use.
+
+We at Determinate Systems have actively contributed to Nix as an open source project in the past&mdash;alongside countless talented individuals&mdash;and will continue to do so as part of our [mission] to make Nix better.
+We have also created [Determinate Nix][det-nix], a downstream distribution of Nix intended for enterprise.
+</Admonition>
 
 ## The Nix CLI \{#cli}
 
@@ -75,10 +86,17 @@ The *original CLI* for Nix is still the official CLI but, as we mention above, n
 
 The [Determinate Nix Installer][install] enables the [unified CLI](#unified-cli) by default, but leaves the tools from the original CLI accessible.
 
+[det-nix]: https://docs.determinate.systems/determinate-nix
 [ds]: https://determinate.systems
 [env]: /concepts/dev-env
 [flakes]: /concepts/flakes
+[github]: https://github.com
 [install]: /concepts/nix-installer
 [lang]: /concepts/nix-language
+[license]: https://github.com/nixOS/nix?tab=LGPL-2.1-1-ov-file
+[mission]: https://determinate.systems/posts/we-want-to-make-nix-better
+[nix]: https://nixos.org
+[nixos-org]: https://github.com/NixOS
 [packages]: /concepts/packages
+[package-management]: /concepts/package-management
 [store]: /concepts/nix-store