Forward SSH from WSL 2

.bashrc

# Configure ssh forwarding
export SSH_AUTH_SOCK=$HOME/.ssh/agent.sock

# Use pgrep to check if the process is running
pgrep -f "npiperelay -ei -s //./pipe/openssh-ssh-agent" > /dev/null
IS_ALREADY_RUNNING=$?

if [[ $IS_ALREADY_RUNNING -ne 0 ]]; then
    if [[ -S $SSH_AUTH_SOCK ]]; then
        # Not expecting the socket to exist as the forwarding command isn't running
        echo "Removing previous socket..."
        rm $SSH_AUTH_SOCK
    fi
    echo "Starting SSH-Agent relay..."
    # Setsid to force new session to keep running
    # Set socat to listen on $SSH_AUTH_SOCK and forward to npiperelay which then forwards to openssh-ssh-agent on windows
    (setsid socat UNIX-LISTEN:$SSH_AUTH_SOCK,fork EXEC:"npiperelay -ei -s //./pipe/openssh-ssh-agent",nofork &) >/dev/null 2>&1
fi