My Nix overlay. I used mrVanDalo's as template.

To install the overlay into ~/.config/nixpkgs/overlays just run:

./install.sh

now you can test your builds using:

nix-shell -p idea-ultimate-2020_3

add the following to your /etc/nixos/configuration.nix:

nixpkgs.config.packageOverrides = import /path/to/overlay.nix pkgs;

now you can install the packages from the overlay

environment.systemPackages = [
    pkgs.idea-ultimate-2020_3
];

nix-build -E 'with import <nixpkgs> {} ; callPackage ./default.nix {}';

should create a ./result folder which contains the result of the package.

• A presentation about Overlays
• Package Binaries