Simple Arvelie visualizer

To run on NixOS:

nix run github:42loco42/eligevie

On non-NixOS, use nixGL:

NIXPKGS_ALLOW_UNFREE=1 nix run --impure github:nix-community/nixgl \
  nix run github:42loco42/eligevie

By default, shows current date. Hold SPACE for demo mode.