fix(packages): move to overlays

packages/scripts/daybook.nix

@@ -0,0 +1,27 @@
+{ stdenv, makeWrapper, pandoc, fetchFromGitHub }:
+stdenv.mkDerivation {
+  name = "daybook";
+  src = fetchFromGitHub {
+    owner = "kmein";
+    repo = "daybook";
+    rev = "cad1aef158b0df36861434eb04c953d99a122e80";
+    sha256 = "07qippyry0yjf971pnqxm9i0xpvih8mvbhxwfwpwq980jik1hbl1";
+  };
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ pandoc ];
+  buildPhase = ''
+    mkdir -p $out/man/man1
+    pandoc --standalone --to man daybook.1.md -o $out/man/man1/daybook.1
+  '';
+  installPhase = ''
+    mkdir -p $out/bin
+    install daybook $out/bin
+    wrapProgram $out/bin/daybook --prefix PATH ":" ${pandoc}/bin ;
+  '';
+  meta = with stdenv.lib; {
+    homepage = https://github.com/kmein/daybook;
+    description = "A diary writing utility in sh";
+    license = licenses.mit;
+    platforms = platforms.linux;
+  };
+}