notion-app for NixOS

inspired from https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=notion-app-electron

how to install:

1. import flake in your config:

{
  inputs = {
      notion-app.url = "github:xinux-org/notion-app";
  };

  # ...
}

2. import package:

{ pkgs, inputs, ... }: {
  environment.systemPackages = [
    pkgs.vim # this is an example

    inputs.notion-app.defaultPackage.x86_64-linux
  ];
}