From 27514d58573ce1f844af4ea60afa72c7f58f1cd7 Mon Sep 17 00:00:00 2001
From: Jasper Ras <jras@hostnet.nl>
Date: Thu, 21 Aug 2025 22:09:29 +0200
Subject: vault backup: 2025-08-21 22:09:29

---
 Nix flakes.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Nix flakes.md

(limited to 'Nix flakes.md')

diff --git a/Nix flakes.md b/Nix flakes.md
new file mode 100644
index 0000000..f57ed36
--- /dev/null
+++ b/Nix flakes.md	
@@ -0,0 +1,24 @@
+---
+tags:
+  - nix
+---
+[[Referencing a nix flake]]
+
+---
+
+Root directory contains flake.nix:
+Specifies inputs (other flakes) and outputs ([[Nix derivations]]). Allows pinning versions of inputs (dependencies) making it easier to write reproducable expressions.
+
+Avoid multiple nixpkgs by including a follows on the input:
+```
+inputs = {
+  nixpkgs.url = "github:NixOS/nixpkgs/<branch name>";
+  hyprland = {
+    url = "github:hyprwm/Hyprland";
+    inputs.nixpkgs.follows = "nixpkgs";
+  };
+};
+```
+
+Outputs:
+[Flake check](https://github.com/NixOS/nix/blob/master/src/nix/flake-check.md)
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