Refactor packages

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

packages/obsidian/plugins/tasks/default.nix

@@ -0,0 +1,32 @@
+{ pkgs, ... }:
+# AUTO-UPDATE: nix-update --flake obsidian-plugin-tasks
+pkgs.stdenv.mkDerivation rec {
+  pname = "obsidian-plugin-tasks";
+  version = "7.17.0";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "obsidian-tasks-group";
+    repo = "obsidian-tasks";
+    rev = version;
+    hash = "sha256-BF9ye4ocE6vZh+ChkmuLkQpNWtH425EX0EHQs+wbTZc=";
+  };
+
+  offlineCache = pkgs.fetchYarnDeps {
+    yarnLock = src + "/yarn.lock";
+    hash = "sha256-Tf1K048Ox+hImIfrdBWQHsiDe+3FGUQLFBcf/Bbbo1U=";
+  };
+
+  nativeBuildInputs = with pkgs; [
+    nodejs
+    yarnConfigHook
+    yarnBuildHook
+    npmHooks.npmInstallHook
+  ];
+
+  installPhase = ''
+    mkdir -p $out
+    cp ./manifest.json $out/manifest.json
+    cp ./main.js $out/main.js
+    cp ./styles.css $out/styles.css
+  '';
+}