Simply does not work on debian 12

[davelowe1977]

Summary - installed docker and git on debian 12 fully updated system (2 CPUs, 1GB RAM, copious disk), installed overleaf community as per https://github.com/overleaf/toolkit/blob/master/doc/quick-start-guide.md
Outcome -
✔ Container mongo Started
unable to upgrade to tcp, received 409
Testing in local browser (lynx) -
Alert!: Unable to connect to remote host.

What should I do next? TIA

Detailed command history to get to this point:

# ensure system is fully patched to latest debian 12
apt-get update && apt-get upgrade -y
# confirm there is no docker stuff installed anywhere as per https://docs.docker.com/engine/install/debian/
for pkg in docker.io docker-doc docker-compose podman-docker containerd runc; do apt-get remove $pkg; done
# install git
apt-get install git
# install lynx for localhost website test
apt-get install lynx
# install docker as per https://docs.docker.com/engine/install/debian/
apt-get update
apt-get install ca-certificates curl
install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
chmod a+r /etc/apt/keyrings/docker.asc
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  tee /etc/apt/sources.list.d/docker.list > /dev/null
apt-get update
# install docker as per https://docs.docker.com/engine/install/debian/
apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
# test docker
docker run hello-world
# delete hello-world and any other images and containers
docker rm -vf $(docker ps -aq) && docker rmi -f $(docker images -aq)
# instructions to install and run overleaf-toolkit as per https://github.com/overleaf/toolkit/blob/master/doc/quick-start-guide.md
git clone https://github.com/overleaf/toolkit.git ./overleaf-toolkit
cd ./overleaf-toolkit
bin/init
bin/up
## partial output after the previous command ##
	[+] Running 1/1
	✔ Container mongo  Started                                                                                                               9.3s
	unable to upgrade to tcp, received 409
# testing
lynx --> open http://localhost/launchpad
## partial output from lynx ##
	Alert!: Unable to connect to remote host.

[davelowe1977]

This turned out to be because the CPU was missing the AVX instruction set. This should be mentioned in the documentation.