enable unfree package

flake.nix

@@ -20,11 +20,20 @@
     }:
     let
       system = "x86_64-linux";
+      overlay-unstable = final: prev: {
+        unstable = import nixpkgs-unstable {
+          system = "x86_64-linux";
+          config.allowUnfree = true;
+        };
+      };
       pkgs = import nixpkgs {
         inherit system;
         config = {
           allowUnfree = true;
         };
+        overlays = [
+          overlay-unstable
+        ];
       };
     in
     {

home-manager/desktop.nix

@@ -3,7 +3,7 @@
   imports = [
     ./common.nix
     ./common/git/git.nix
-    # ./obsidian.nix
+    ./obsidian.nix
     ./work-desktop.nix
   ];
   home.packages = with pkgs; [

home-manager/obsidian.nix

@@ -1,18 +1,4 @@
-{ config, pkgs, ... }:
-let
-  unstable = import
-    (builtins.fetchTarball {
-      # Descriptive name to make the store path easier to identify
-      url = "https://github.com/nixos/nixpkgs/archive/942eb9a335b4cd22fa6a7be31c494e53e76f5637.tar.gz";
-      # Commit hash for nixos-unstable as of 2018-09-12
-      # `git ls-remote https://github.com/nixos/nixpkgs nixos-unstable`
-      sha256 = "05390093gl44h8v6pgklwkgbn3vwdhs81shabqmjagq6rg1sh1l5";
-    })
-    # reuse the current configuration
-    {
-      config = config.nixpkgs.config;
-    };
-in
+{ pkgs, ... }:
 {
   home.packages = with pkgs; [
     unstable.obsidian