Hello ab cd
my old RPI finally broke down.
On my RPI-4 i Installed Raspbian-Bullseye, and followed your Instruction Dump1090-Mutability.
I got stuck on STEP-3 (GET ALTERNATING BLUE/RED CIRCLES), modify script.js because there is no section "function drawCircle".
Can you help ?
That howto is for old version of dump1090-mutability. New version uses different method. I will update it shortly.
Updated original post