Andy Burns wrote:

> no obviously named systemd unit

tell a lie ...

# systemctl list-units *swap*
   UNIT                                                 LOAD   ACTIVE
SUB    DESCRIPTION
   swap-create@zram0.service                            loaded active
exited Create swap on /dev/zram0
   system-swap\x2dcreate.slice                          loaded active
active system-swap\x2dcreate.slice
   dev-mapper-fedora_localhost\x2d\x2dlive\x2dswap.swap loaded active
active /dev/mapper/fedora_localhost--live-swap
   dev-zram0.swap                                       loaded active
active Compressed swap on /dev/zram0
   swap.target                                          loaded active
active Swap

--- SoupGate-Win32 v1.05