Add 'trivionomicon/' from commit 'bf39923f9c'

git-subtree-dir: trivionomicon
git-subtree-mainline: 98a32736d6
git-subtree-split: bf39923f9c

trivionomicon/templates/system-flake/pkgs/hello-world/default.nix

@@ -0,0 +1,14 @@
+{stdenv, ...}:
+stdenv.mkDerivation {
+  name = "hello-world";
+  version = "1.0.0";
+
+  src = ./.;
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp hello-world $out/bin
+  '';
+
+  meta.mainProgram = "hello-world";
+}