Updating firmware with fwupdmgr

Guix
4

I’ve recently tried adding fwupd (at the system level) and originally got the same error. Thought perhaps guix-fwupd-service-type existed, but seems to still be pending based the following issues thread: [PATCH 1/2] gnu: Add fwupd service.

However, in that thread it does gives the following work-around:

   (simple-service 'dbus-fwupd
                   dbus-root-service-type
                   (list fwupd))

   (simple-service 'polkit-fwupd
                   polkit-service-type
                   (list fwupd))

I gave this a go, and it worked in resolving the above error. But, now I get the following errors(?) when trying the following:

logoraz@framework ~$ fwupdmgr refresh --force
Failed to open polkit agent: missing executable pkttyagent in PATH
No remotes are currently enabled so no metadata is available.
Metadata can be obtained from the Linux Vendor Firmware Service.
Enable this remote? [Y|n]: y
Authenticating…          [ -                                     ]
Failed to obtain auth

…and

logoraz@framework ~$ fwupdmgr get-updates
Failed to open polkit agent: missing executable pkttyagent in PATH
Devices with no available firmware updates: 
 • Fingerprint Sensor
 • Laptop Webcam Module (2nd Gen)
 • System Firmware
 • UEFI dbx
 • WD BLACK SN850X 1000GB
No updatable devices

This is as far as I’ve got on this… Any ideas?