[Feature]: Please support El Capitan 10.11

[thinker007]

Is your proposal related to a problem?

I want to test some app under El Capitan 10.11,Now the lowest version of MacOS is "catalina" 10.15 .

I added the following code to install.sh
"elcapitan" | "10.11"* )
board="Mac-F2218FA9" ;;

The os recovery image down worked ,but when boot into recovery mode the novnc console do not have mouse control

So can you fix it let this amazing project support El Capitan 10.11

Describe the solution you'd like.

added the following code to install.sh
"elcapitan" | "10.11"* )
board="Mac-F2218FA9" ;;

Describe alternatives you've considered.

None

Additional context

No response