"minimal GTK graphical login manager ... snip"

* user's login MUST not / never been breaks.

   pulling GTK isnt like minimal.

   GUI libs/frameworks depends/assumes too much little things;  its fagile, not safe at least.

   gtk needs already running/functional display server/compositor to present something.

   gui stuff may not even installed on given system. (Say container, server, or user (wants to) uninstall that gui libs  for some reason.)

   A newbie user may not repair broken login himself and/or dont know how to drop root console at boot.

   I see to much complaints about broken login caused by "login managers" on forums.

* So how about a self contained statically linked tui/gui app that cant depends anythink in system.

FYI: there are a handfull single file/header tui/gui stuffs on codeberg, github ...

"What is amprolla and what does it do . . . or not do?  At the First Devuan Conference in April, Katolaz' presentation "The Quest for Minimalism" answered these questions.  This audio of the amprolla section enhances understanding of the screenshots below."

https://dev1galaxy.org/viewtopic.php?id=3192

Pure genius!

That doesn't sound very minimal to me. How does it relate to that program that the OP got made?

Come to the meeting in 6 hours so I can explain to you how it relates to the OP. https://vdc.dyne.org/devuan

In the mean time stop pretending like you just cleared up poor use of language when the following is easily found on the devuan.org website.
The core of the vision remains the same today: Devuan is a minimal, stable system that honors Debian’s legacy and embraces innovation while maintaining backwards compatibility and interoperability. In this context what dimension is Devuan measured to be lesser?

Maybe these release notes for the minimal ISO will jog your memory on the meaning of :minimal" https://files.devuan.org/devuan_excalib … l-live.txt

Maybe more examples would help? Aprolla measures 1x1 no doubt.
Amprolla is the heart of Devuan that merges various apt repositories in a minimal and modular way.

Here is someone on this forum posting about a minimal X.org server setup that you neglected to scold for using language that you think no one can understand https://dev1galaxy.org/viewtopic.php?id=7650

Let's look up minimal in a dictionary, the standard we use to define what a word means:

• the least possible

• barely adequate

• very small or slight

I don't know if your dog died or a loved one died or what, but I fail to see how your conduct reflects well on Devuan and is in keeping with the "almost" CoC of this forum. The meeting in 6 hours will provide an excellent opportunity for you to set me straight.

Did you know that github is a Microsoft site?
And that there are many FOSS alternatives one can use instead?

What do you mean by "minimal"? ... 1x1 pixels?

Considering that the term "minimal" is well understood in this context your comment not only seems pointless but a violation of the almost no CoC item #2 of "a foundation of mutual respect is expected from visitors to this forum."

A little positive encouragement would not have gone amiss.

It works with or without elogind and the installer has an option to use dbus or not.

As usual for me chat bots were used.

It can be found here https://sourceforge.net/projects/simple-login-gui/ and the code is here https://github.com/rations/simple-login-gui

You would have to remove lightdm, slim or whatever you're using for this to work.