Thank you kindly for the link (FYI, I've come across WLED in some demonstrations on YouTube) but I'm not sure how it improves things in my use-case?
I have two 8266s sitting waiting 24/7/365 for PIR triggers to then light up strings of LEDs for a (reset-able) length of time. That's it. This is achieved via (relatively simple) Arduino code using FastLED.
It's not entirely clear from the webpage, but it looks like WLED is partly a dashboard and partly a no-code environment to allow controlling LEDs, and setting them up from another device? Incorporating motion detection looks[0] quite[1] complex?
[0] https://xkcd.com/1053/
[1] https://kno.wled.ge/
Edit: not sure about the PIR sensor though... Edit2: nevermind, it'll do: https://kno.wled.ge/basics/compatible-hardware/#miscellaneou...