How to protect against theft

Hi! I recently configured a build with a Ryzen 5 3600 and Gigabyte rtx 2070 super (transferred from older system) in a TD500 Mesh and Asus ROG XG248Q as my monitor (a good expensive monitor). Just before I was going to buy it however I thought what if it gets stolen. If I go on holiday or to a wedding, I won’t be able to take the desktop. Is there a way I can secure a Mid Tower computer and expensive monitor? I also don’t want to sacrifice airflow or spend a whole lot because I have maxed my budget. Any help or advice?
 
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