I completed my first card game. It's not open source yet. I probably will open source it in the future. The game is a simple game like War but with an additional randomness. It does not have a lot of depth to it. It was designed to be party favors for my youngest's birthday. We can't have a physical party due to the pandemic so I wanted the game to be easily playable over video chat. I've written up an article describing development.
The game is available on DriveThruCards.