feat(nix): implement standalone mode

4 files changed, 59 insertions, 11 deletions

diff --git a/README.md b/README.md
index 874e5e0..96d2fc6 100644
--- a/README.md
+++ b/README.md
@@ -8,25 +8,43 @@ Pywal colour schemes into any Home Manager configuration at evaluation-time.
 I needed a pure (not `--impure`) Nix solution. I made a pure Nix solution. It
 works well.
 
-## Usage
+## Installation
 
-### Flake
+### Standalone Home-Manager
+
+```nix
+{ pkgs, ... }:
+{
+  imports = [
+    (import (
+      pkgs.fetchFromGitHub {
+        owner = "Fuwn";
+        repo = "pywal-nix";
+        rev = "...";  # Use the current commit revision hash
+        hash = "..."; # Use the current commit sha256 hash
+      }
+    )).${builtins.currentSystem}.homeManagerModules.default
+  ];
+}
+```
+
+> You can use projects like [nurl](https://github.com/nix-community/nurl) and
+> [`nix-prefetch`](https://github.com/msteen/nix-prefetch) to simplify the
+> usage of `fetchFromGitHub`.
+
+### Flakes & Home-Manager
 
 Add `pywal-nix` to your flake inputs.
 
 ```nix
 {
-  inputs = {
-    pywal-nix = {
-      url = "github:Fuwn/pywal-nix";
-      inputs.nixpkgs.follows = "nixpkgs"; # Recommended
-    };
+  inputs.pywal-nix = {
+    url = "github:Fuwn/pywal-nix";
+    inputs.nixpkgs.follows = "nixpkgs"; # Recommended
   };
 }
 ```
 
-### Home Manager
-
 After adding `pywal-nix` to your flake inputs, consume it as a Home Manager
 module.
 
@@ -42,8 +60,10 @@ inputs.home-manager.lib.homeManagerConfiguration {
 # ...
 ```
 
-Finally, configure and access `pywal-nix` in your Home Manager configuration through
-the `pywal-nix` attribute.
+## Configuration & Usage
+
+Configure and access `pywal-nix` in your Home Manager configuration through the
+`pywal-nix` attribute.
 
 ```nix
 { pkgs, config, ... }:
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..277b463
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,12 @@
+(import (
+  let
+    lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+  in
+  fetchTarball {
+    url =
+      lock.nodes.flake-compat.locked.url
+        or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+
+    sha256 = lock.nodes.flake-compat.locked.narHash;
+  }
+) { src = ./.; }).defaultNix
diff --git a/flake.lock b/flake.lock
index ff9c043..2ab446b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,19 @@
 {
   "nodes": {
+    "flake-compat": {
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "revCount": 57,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/edolstra/flake-compat/1.0.1/018afb31-abd1-7bff-a5e4-cff7e18efb7a/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1726137256,
@@ -17,6 +31,7 @@
     },
     "root": {
       "inputs": {
+        "flake-compat": "flake-compat",
         "nixpkgs": "nixpkgs",
         "systems": "systems"
       }
diff --git a/flake.nix b/flake.nix
index b42e222..376ed22 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,6 +2,7 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs";
     systems.url = "github:nix-systems/default";
+    flake-compat.url = "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz";
   };
 
   outputs =