I wanted to upload a small file (html, 4kB) but found no tool under uecide. So I switched to my installation of Arduino IDE, installed the "ESP32 Sketch data upload", and uploaded the file. Easy.
Except that this bombed both my EEPROM area and my SPIFFS filesystem - all data gone! Why does this even happen, I thought the EEPROM area is separated from the SPIFFS area?
Then SPIFFS did show the uploaded file with correct name and size. I could open the file, and read it - except that it did not read anything, though it continued well beyond 100kB until I stopped the sketch.
So, not only had it not worked, but ruined EEPROM and SPIFFS at the same time, great.
Now I really need a tool working under uecide in order to upload files to my SPIFFS filesystem. What options do I have?