Components:

• Waveshare 1.69inch Round LCD, Compatible with Raspberry Pi 5, Display Module with Touch Panel, Micro LCD Display, 240×280 Resolution, IPS, SPI and I2C Communication, 262K Display Color
  • https://www.amazon.com/dp/B0D17CN13C
• 5pcs ESP32 S2 Mini V1.0.0 WiFi Development Board Based ESP32-S2FN4R2 4MB Flash 2MB PSRAM Type-C USB Connect ESP32-S2 Mini Module for MicroPython
  • https://www.amazon.com/dp/B0CRRM8KF3 
• M2x6mm screws
  • https://www.amazon.com/dp/B094NTWHZV 
     

Source code for ESPHome/HomeAssistant:

• https://github.com/kachok/fOmO-kVm

For 6" rack mount see this model - https://www.printables.com/model/1408523-1u-6-six-inch-rack-mount-for-fomo-kvm 

Face plate model is courtesy of https://github.com/carrefinho/prospector distributed under CERN OH license.