My work with the Lepton lead to an opportunity to design a timelapse camera for a scientist working for the U.S. Forest Service Southern Research Station.  He plans to use the radiometric (temperature) data from the camera to study forest fires.  He also requires visual image data.  The result is a device called FireCAM based around the Lepton 3.5, an ArduCAM 2MP, ESP32 and GUI using LittlevGL.  The project also includes a simple utility program for Mac or Windows to control the camera via a WiFi interface.  Because it is a government project I was able to release the complete design as open-source.  It can be round on github.  Images are stored as json-formatted files (or sent via the wireless interface) which leads to all kinds of interesting possibilities I think.