My initial goal was to have a remote display that would show multiple kind of information and run reliably 24/7. Can be connected to the local network via WiFi and controlled via REST API or Websocket ...

A fast and feature-rich implementation of an ESP32 and ESP8266 webserver to control NeoPixel (WS2812B, WS2811, SK6812) LEDs or also SPI based chipsets like the WS2801 and APA102!