Hibernate on a swapfile on an encrypted btrfs partition

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I’d like to be able to use hibernate on a swapfile on my encrypted btrfs partition. my lsblk is as follows:

NAME        MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
sda           8:0    1     0B  0 disk  
zram0       253:0    0   2.5G  0 disk  [SWAP]
nvme0n1     259:0    0 238.5G  0 disk  
├─nvme0n1p1 259:1    0   512M  0 part  /boot/efi
└─nvme0n1p2 259:2    0   238G  0 part  
  └─cr_root 254:0    0   238G  0 crypt /.snapshots
                                       /

I used this guide to create the swap partition: https://en.opensuse.org/SDB:Partitioning#Creating_a_btrfs_swapfile and my swapon --show is as follows:

NAME                   TYPE      SIZE USED PRIO
/var/lib/swap/swapfile file       12G   0B   -2
/dev/zram0             partition 2.5G 3.3M  100

I’ve also set up dracut to add the resume module. Beyond that, the information I’m not sure what to do.

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