This is a simple case for the Seeed Studio XIAO-ESP32-S3. It has an option with an extra plank that you can stick the external antenna onto. The lid snaps on without any screws or glue.
This is an initial model for basically the device itself. I'll create some more once I get further into some projects I'm working on related to Home Assistant and ESPHome.
Models print without supports or brims as long as you have good adhesion and a reasonably well tuned printer.
The author marked this model as their own original creation.