$ mkdir -p /tmp/shmemory
$ sudo mount -t tmpfs -o size=1G noname /tmp/shmemory/

$ mount | grep -i shmem
noname on /tmp/shmemory type tmpfs (rw,relatime,size=1048576k)

$ mount | grep -iE "shms"
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)