From a6858dca2565fdacba0852aeb77e638f0dc886c2 Mon Sep 17 00:00:00 2001
From: Tim Keller <tjk@tjkeller.xyz>
Date: Mon, 13 Apr 2026 11:00:14 -0500
Subject: add ability to use unstable packages in config and use
 unstable.sparrow

---
 archetypes/collections/desktop/crypto.nix |  2 +-
 flake.lock                                | 17 +++++++++++++++++
 flake.nix                                 |  1 +
 pkgs/default.nix                          |  8 +++++++-
 4 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/archetypes/collections/desktop/crypto.nix b/archetypes/collections/desktop/crypto.nix
index f90919e..bfb9186 100644
--- a/archetypes/collections/desktop/crypto.nix
+++ b/archetypes/collections/desktop/crypto.nix
@@ -7,7 +7,7 @@ in {
 
 	config = lib.mkIf cfg.enable {
 		environment.systemPackages = with pkgs; [
-			sparrow
+			unstable.sparrow
 		];
 	};
 }
diff --git a/flake.lock b/flake.lock
index 70cc488..fed05a3 100644
--- a/flake.lock
+++ b/flake.lock
@@ -97,6 +97,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1775710090,
+        "narHash": "sha256-ar3rofg+awPB8QXDaFJhJ2jJhu+KqN/PRCXeyuXR76E=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "4c1018dae018162ec878d42fec712642d214fdfa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "pre-commit": {
       "inputs": {
         "flake-compat": [
@@ -148,6 +164,7 @@
         "arkenfox": "arkenfox",
         "home-manager": "home-manager",
         "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable",
         "reposync": "reposync",
         "sops-nix": "sops-nix"
       }
diff --git a/flake.nix b/flake.nix
index c5e22c6..708f390 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,6 +3,7 @@ rec {
 
 	inputs = {
 		nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
+		nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
 
 		sops-nix = {
 			url = "github:Mic92/sops-nix";
diff --git a/pkgs/default.nix b/pkgs/default.nix
index aae0751..fb76338 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, ... }: {
+{ pkgs, inputs, ... }: {
 	nixpkgs.overlays = with pkgs; [
 		(final: prev: {
 			immich-frame  = (callPackage ./immich-frame {});
@@ -28,5 +28,11 @@
 		})
 		(import ./st/overrides.nix)
 		(import ./xorg/overrides.nix)
+		# Allow installing unstable packages via pkgs.unstable.<name>
+		(final: prev: {
+			unstable = import inputs.nixpkgs-unstable {
+				inherit (final) system;
+			};
+		})
 	];
 }
-- 
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