The command doesn't work

[NicolinoGamer]

Every time I try to run this command: docker run -it
--device /dev/kvm
-p 50922:10022
-v /tmp/.X11-unix:/tmp/.X11-unix
-e "DISPLAY=${DISPLAY:-:0.0}"
-e GENERATE_UNIQUE=true
-e CPU='Haswell-noTSX'
-e CPUID_FLAGS='kvm=on,vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on'
-e MASTER_PLIST_URL='https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom-sonoma.plist'
sickcodes/docker-osx:sonoma
I get this problem: fish: ${ is not a valid variable in fish.

[NicolinoGamer]

I tried running the command again on Pop OS instead of Arch Linux and I got this:

[NicolinoGamer]

With Arch I was fine with the Pre-Installed Catalina script but with Pop OS it wasn't. Here's what I get:

[tenuuni]

You are using the fish shell.
fish is known to cause problems with POSIX compliance.
Switch to the bash shell by running bash and try again.