Messages from dpkg install of omd 5.50 on Devuan Daedalus (bookworm)

[systemdlete]

Here is a copy-paste of my install of omd 5.50 on a Devuan Daedalus system:

# apt install /extraspace/omd/omd-5.50-labs-edition.debian12.amd64.deb 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Note, selecting 'omd-5.50-labs-edition' instead of '/extraspace/omd/omd-5.50-labs-edition.debian12.amd64.deb'
The following NEW packages will be installed:
  omd-5.50-labs-edition
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/388 MB of archives.
After this operation, 1,883 MB of additional disk space will be used.
Get:1 /extraspace/omd/omd-5.50-labs-edition.debian12.amd64.deb omd-5.50-labs-edition amd64 1.debian12 [388 MB]
Selecting previously unselected package omd-5.50-labs-edition.
(Reading database ... 246445 files and directories currently installed.)
Preparing to unpack .../omd-5.50-labs-edition.debian12.amd64.deb ...
Unpacking omd-5.50-labs-edition (1.debian12) ...
Setting up omd-5.50-labs-edition (1.debian12) ...
New default version is 5.50-labs-edition.
update-alternatives: using /omd/versions/5.50-labs-edition to provide /omd/versions/def
ault (omd) in manual mode
/var/lib/dpkg/info/omd-5.50-labs-edition.postinst: 155: systemctl: not found
/var/lib/dpkg/info/omd-5.50-labs-edition.postinst: 156: systemctl: not found
Processing triggers for man-db (2.11.2-2) ...
Scanning processes...                                                                  
Scanning linux images...                                                               

Running kernel seems to be up-to-date.

No services need to be restarted.

No containers need to be restarted.

No user sessions are running outdated binaries.

No VM guests are running outdated hypervisor (qemu) binaries on this host.
N: Download is performed unsandboxed as root as file '/extraspace/omd/omd-5.50-labs-edition.debian12.amd64.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)

Devuan does not use systemctl; this may be harmless, but it is a bit messy. Not sure about the last message; I guess that _apt doesn't have access to the /extraspace/omd directory.