UPDATE 13 May 2026: tested with elogind-v257.14, Slackware64-current full updated, kernel: 6.18.29

elogind-slackware

For testing: modified official rc.elogind and elogind.SlackBuild.
Now Slackware-Current can support new elogind functions: varlinkctl, userdbctl etc
Keep in mind that all these new functions are not released yet we build from master
New functions appears in this commit: github.com/elogind/elogind@75c45d63c8
Update: Builded from official release elogind-v257.14

We all have to say elogind devs

THANK_YOU

These improvments will help a lot Gnome builds and future Plasma builds for no-systemd disrtos.

examples

loginctl lock-session          
loginctl unlock-session      
loginctl list-sessions          
loginctl show-session <ID> 
loginctl suspend

6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 2:52:12pm)-(CPU 1.7%:Net 5)-(omen:~)-(12G:206)
└─ >> userdbctl user omen
   User name: omen
 Disposition: regular
 Last Passw.: Mon 2024-11-11 02:00:00 EET
    Login OK: yes
 Password OK: yes
         UID: 11000
6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 2:52:24pm)-(CPU 1.7%:Net 5)-(omen:~)-(12G:206)
└─ >> userdbctl user testuser
   User name: testuser
 Disposition: regular
 Last Passw.: Wed 2025-09-24 03:00:00 EEST
    Login OK: yes
         UID: 11003
         GID: 11003 (testuser)
   Directory: /home/testuser
     Storage: classic
       Shell: /bin/bash
 Passwd Chg.: max 273y 9month 1w 4d 19h 30min/warn 1w
Pas. Ch. Now: no
   Passwords: none
     Service: io.systemd.NameServiceSwitch
 Self Modify: realName
              emailAddress
              iconName
              location
              shell
              umask
              environment
              timeZone
              preferredLanguage
              additionalLanguages
              preferredSessionLauncher
              preferredSessionType
              pkcs11TokenUri
              fido2HmacCredential
              recoveryKeyType
              lastChangeUSec
              lastPasswordChangeUSec
      (Blobs) avatar
              login-background
 (Privileged) passwordHint
              hashedPassword
              pkcs11EncryptedKey
              fido2HmacSalt
              recoveryKey
              sshAuthorizedKeys
Warning: lacking rights to acquire privileged fields of user record of 'testuser', output incomplete.
6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 3:03:23pm)-(CPU 2.2%:Net 9)-(omen:~)-(12G:206)
└─ >> userdbctl user sddm
   User name: sddm
 Disposition: system
 Last Passw.: Mon 1996-10-28 02:00:00 EET
    Login OK: no (nologin shell)
 Password OK: no (none set)
         UID: 64
         GID: 64 (sddm)
 Aux. Groups: video
   Real Name: User for SDDM
   Directory: /var/lib/sddm
     Storage: classic
       Shell: /bin/false
Pas. Ch. Now: no
   Passwords: none
     Service: io.systemd.NameServiceSwitch
 Self Modify: none
      (Blobs) none
 (Privileged) none

6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 3:04:38pm)-(CPU 2.1%:Net 9)-(omen:~)-(12G:206)
└─ >> varlinkctl call unix:/run/systemd/userdb/io.systemd.NameServiceSwitch \
  io.systemd.UserDatabase.GetUserRecord \
  '{"userName":"testuser","service":"io.systemd.NameServiceSwitch"}'
{
        "record" : {
                "userName" : "testuser",
                "uid" : 11003,
                "gid" : 11003,
                "homeDirectory" : "/home/testuser",
                "shell" : "/bin/bash",
                "passwordChangeNow" : false,
                "lastPasswordChangeUSec" : 1758672000000000,
                "passwordChangeMaxUSec" : 8639913600000000,
                "passwordChangeWarnUSec" : 604800000000,
                "status" : {
                        "670e4da96548c6680462a1d367326f46" : {
                                "service" : "io.systemd.NameServiceSwitch"
                        }
                }
        },
        "incomplete" : true
}
6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 3:05:07pm)-(CPU 2.1%:Net 8)-(omen:~)-(12G:206)
└─ >> varlinkctl call unix:/run/systemd/userdb/io.systemd.NameServiceSwitch   io.systemd.UserDatabase.GetUserRecord   '{"userName":"sddm","service":"io.systemd.NameServiceSwitch"}'
{
        "record" : {
                "userName" : "sddm",
                "uid" : 64,
                "gid" : 64,
                "realName" : "User for SDDM",
                "homeDirectory" : "/var/lib/sddm",
                "shell" : "/bin/false",
                "passwordChangeNow" : false,
                "lastPasswordChangeUSec" : 846460800000000,
                "status" : {
                        "670e4da96548c6680462a1d367326f46" : {
                                "service" : "io.systemd.NameServiceSwitch"
                        }
                }
        },
        "incomplete" : false
}

6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 3:06:25pm)-(CPU 2.0%:Net 8)-(omen:~)-(12G:206)
└─ >> userdbctl groups-of-user manos
USER  GROUP  
manos audio
manos cdrom
manos floppy
manos input
manos lp
manos netdev
manos plugdev
manos power
manos scanner
manos video

10 memberships listed.
6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 3:07:32pm)-(CPU 1.9%:Net 8)-(omen:~)-(12G:206)
└─ >> userdbctl groups-of-user sddm
USER GROUP
sddm video

1 memberships listed.

userdbctl groups-of-user sddm
USER GROUP
sddm video

1 memberships listed.
6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 3:07:39pm)-(CPU 1.9%:Net 8)-(omen:~)-(12G:206)
└─ >> userdbctl group avahi
  Group name: avahi
 Disposition: system
         GID: 214
     Service: io.systemd.NameServiceSwitch

More info for testers:

userdbctl --help
userdbctl [OPTIONS...] COMMAND ...

Show user and group information.

Commands:
  user [USER…]               Inspect user
  group [GROUP…]             Inspect group
  users-in-group [GROUP…]    Show users that are members of specified groups
  groups-of-user [USER…]     Show groups the specified users are members of
  services                   Show enabled database services
  ssh-authorized-keys USER   Show SSH authorized keys for user

Options:
  -h --help                  Show this help
     --version               Show package version
     --no-pager              Do not pipe output into a pager
     --no-legend             Do not show the headers and footers
     --output=MODE           Select output mode (classic, friendly, table, json)
  -j                         Equivalent to --output=json
  -s --service=SERVICE[:SERVICE…]
                             Query the specified service
     --with-nss=BOOL         Control whether to include glibc NSS data
  -N                         Do not synthesize or include glibc NSS data
                             (Same as --synthesize=no --with-nss=no)
     --synthesize=BOOL       Synthesize root/nobody user
     --with-dropin=BOOL      Control whether to include drop-in records
     --with-varlink=BOOL     Control whether to talk to services at all
     --multiplexer=BOOL      Control whether to use the multiplexer
     --json=pretty|short     JSON output mode
     --chain                 Chain another command
     --uid-min=ID            Filter by minimum UID/GID (default 0)
     --uid-max=ID            Filter by maximum UID/GID (default 4294967294)
  -z --fuzzy                 Do a fuzzy name search
     --disposition=VALUE     Filter by disposition
  -I                         Equivalent to --disposition=intrinsic
  -S                         Equivalent to --disposition=system
  -R                         Equivalent to --disposition=regular
     --boundaries=BOOL       Show/hide UID/GID range boundaries in output
  -B                         Equivalent to --boundaries=no

See the userdbctl(1) man page for details.

6.15.9-zen+ ☘P.A.O ☘(Thu Sep-9 3:09:53pm)-(CPU 1.8%:Net 8)-(omen:~)-(12G:206)
└─ >> varlinkctl --help
varlinkctl [OPTIONS...] COMMAND ...

Introspect Varlink Services.

Commands:
  info ADDRESS           Show service information
  list-interfaces ADDRESS
                         List interfaces implemented by service
  list-methods ADDRESS [INTERFACE…]
                         List methods implemented by services or specific
                         interfaces
  introspect ADDRESS [INTERFACE…]
                         Show interface definition
  call ADDRESS METHOD [PARAMS]
                         Invoke method
  validate-idl [FILE]    Validate interface description
  help                   Show this help

Options:
  -h --help              Show this help
     --version           Show package version
     --no-pager          Do not pipe output into a pager
     --more              Request multiple responses
     --collect           Collect multiple responses in a JSON array
     --oneway            Do not request response
     --json=MODE         Output as JSON
  -j                     Same as --json=pretty on tty, --json=short otherwise
  -q --quiet             Do not output method reply
     --graceful=ERROR    Treat specified Varlink error as success
     --timeout=SECS      Maximum time to wait for method call completion
  -E                     Short for --more --timeout=infinity

See the varlinkctl(1) man page for details.

NOTE

Everything here is unofficial and only for personal use. If you want to test things clone repo and run SLackBuild, slackpkg new-config and reboot...
But you are on your own if system breaks.