Day Zero - Zombie Themed TTRPG [Looking for Feedback]

Hello, I've been working on this TTRPG since I played my first TTRPG years ago. My goal for it is to be fun with some resource management, very sandboxy, and accessible to new TTRPG players.

I have a 1-shot prepared, but havent had a chance to run it yet. I would also like to start a campaign that lasts a while where we can develop the rules together through playtesting.