root@stardust ~# lsblk
NAME                MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
zram0               252:0    0     4G  0 disk  [SWAP]
nvme0n1             259:0    0 476.9G  0 disk  
├─nvme0n1p1         259:1    0   512M  0 part  /boot/efi
├─nvme0n1p2         259:2    0    16M  0 part  
├─nvme0n1p3         259:3    0 127.1G  0 part  
├─nvme0n1p4         259:4    0   768M  0 part  
├─nvme0n1p5         259:5    0   512M  0 part  /boot
├─nvme0n1p6         259:6    0   332G  0 part  
│ └─nvme0n1p6_crypt 253:0    0   332G  0 crypt /home
│                                              /
└─nvme0n1p7         259:7    0    16G  0 part  
  └─nvme0n1p7_crypt 253:1    0    16G  0 crypt [SWAP]

root@stardust ~# df -h
Filesystem                   Size  Used Avail Use% Mounted on
udev                         7.7G     0  7.7G   0% /dev
tmpfs                        1.6G  2.1M  1.6G   1% /run
/dev/mapper/nvme0n1p6_crypt  333G  103G  226G  32% /
tmpfs                        7.7G     0  7.7G   0% /dev/shm
tmpfs                        5.0M  8.0K  5.0M   1% /run/lock
tmpfs                        7.7G  4.0K  7.7G   1% /tmp
/dev/mapper/nvme0n1p6_crypt  333G  103G  226G  32% /home
/dev/nvme0n1p5               488M  105M  348M  24% /boot
/dev/nvme0n1p1                96M   50M   47M  52% /boot/efi
tmpfs                        1.6G  104K  1.6G   1% /run/user/1000


root@stardust ~# zramctl
NAME       ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT
/dev/zram0 zstd            4G   4K   64B    4K       8 [SWAP]

root@stardust ~# swapon
NAME       TYPE      SIZE USED PRIO
/dev/zram0 partition   4G   0B  100
/dev/dm-1  partition  16G   0B   -2

root@stardust ~# free -h
               total        used        free      shared  buff/cache   available
Mem:            15Gi       6.9Gi       6.2Gi       570Mi       3.7Gi       8.5Gi
Swap:           19Gi          0B        19Gi