Wake me up when Wayland is "ready" for production use... It's never going to overtake Xorg, no matter what the shills say.

I made a personal list of GTK2-supported programs for Chimaera and Daedalus. Sadly, some approaches might require turning your system into a FrankenDevuan, but it can be worked with.

I purposely keep GTK2 programs such as Leafpad (text editor), Pale Moon (Web browser), Pidgin (IRC), LazPaint (image editor), VeraCrypt 1.24 (file encryption), etc. installed.

I shall soon replace FileZilla (FTP client) with gFTP and Thunderbird (e-mail client) with Claws Mail (Chimaera version is still on GTK2). It might be possible to use Xfce 4.12 on Chimaera or Daedalus, but you have to be very specific with Apt pinning to prevent updating to the newer and shinier 4.16 or 4.18 builds.

LXDE is still the only GTK2 DE available on the latest stable release, so that can be utilized.

Openbox can replace Xfce's WM and replicate much of its functionality with config changes. For compositing, Picom could be used.

The GTK2 build of SpaceFM can also be installed to replace Thunar, Caja, and other file managers, but you must understand that it is a dead project with over two hundred bugs (last official commit was in early 2018, with no further signs of life from the maintainer). Moreover, it will be removed from Devuan as of Excalibur when it goes stable in two years (the latest build for Ceres only ships GTK3 now).

Your best bet is to replace what you can with GTK2 or even Qt (using Qt5ct to skin its programs to look more GTK2-esque).

Otherwise, just go back to any of the first three Devuan releases (Jessie, Ascii, and/or Beowulf). The unfortunate thing is the lack of official support for the first two already, and Beowulf will be archived soon.

Finally, with all of this out of the way, it would have been great if MATE or Xfce forked GTK2 ten years ago. It's too late now. All the more reasons to hate GNOME developers for their lack of respect for the end user. They are by far one of the most incompetent disgraces to the open-source community.

Yes to all of the above. Devuan is 1:1 with Debian except in instances where Systemd would be invoked or a package would be too problematic to fork. The maintained list can be located here.

#/etc/apt/sources.list
deb http://deb.devuan.org/merged/ daedalus-backports main contrib non-free non-free-firmware

For best results, you are better off just using AMD or Intel GPUs.

Note that if you don't install the daemonless "build" of Logind from the official repositories, this will cripple Polkit (e.g. Pkexec) and restrict your Xfce's session management (you'd only be able to log out). As well, NetworkManager will have to be replaced with Connman. All your KDE packages will be gone.

First thing is to install dummy-logind (prevents most of the packages from being removed), consolekit, seatd, libck-connector0, libpolkit-gobject-consolekit-1-0, udevil (for user-level drive mounting without authentication, with devmon as the daemon you have to execute), and lxqt-sudo (for authentication).

Afterwards, you'll have to look for your packages' binary files that call upon Pkexec to some extent (e.g. Synaptic, Gufw, Timeshift, GSmartControl, GParted) and replace them all with LXQt's version. It's also a good idea to adjust your Polkit rules in /usr/share/polkit-1/.

If you start your Xfce session with Startx, then change your Xinit configuration file used to exec startxfce4 --with-ck-launch.

First, which Devuan version are you using? If it's Chimaera (stable), then I'd avoid mixing and matching different repositories for the best chances at stability. Some of those packages (libssl1.0.0 in particular) are either no longer installable (deprecated) or not available in your main repository. If you were using Daedalus (testing) or Ceres (unstable), you might be able to get away with installing specific DEBs from other branches.

Have you tried to install from the official DEB file (2.18)? Using Ceres (unstable), GDebi tells me that "all dependencies are satisfiable".

The following DEBs are available for manual installation:

https://www.gnuinos.org/amixer-gtk/amixer-gtk_0.1_amd64.deb
https://www.gnuinos.org/amixer-gtk/amixer-gtk_0.1_i386.deb

Quick installation commands (one for amd64 and the other for i386:

wget https://www.gnuinos.org/amixer-gtk/amixer-gtk_0.1_amd64.deb && sudo dpkg -i amixer-gtk_0.1_amd64.deb

wget https://www.gnuinos.org/amixer-gtk/amixer-gtk_0.1_i386.deb && sudo dpkg -i amixer-gtk_0.1_i386.deb

What Camtaf said. It's a small project that's run by a few volunteers, so I don't understand the need to escalate things, when there are some workarounds for this. Manually installing the updated DEB file worked for me.

Be like our friend MiyoLinux and offer to help out.

devuan-keyring has already been updated in the repository. This command was provided by Bb|hcb in the IRC channel:
apt update --allow-insecure-repositories && apt install devuan-keyring --allow-unauthenticated

Wikipedia is a biased source, and anyone can easily vandalize it, but yes, it's only been introduced as far back as the 1950s technically. "Gender" and "sex" were used interchangeably. There are established social structures of both males and females that can be observed in nature. It's not just down to your genitals, but the structure of your body (including DNA and chromosomes). Males typically have larger arms, torsos, legs, and shoulders than females. This is so they are the designated hunters, due to having a physical advantage over their prey and other threats. Sure, a woman could always get her muscle gains by spending time at the gym, but my point is it's an environmental change, rather than something that happens biologically. I'm also aware that some women can grow significant facial hair. This is not an argument for "gender identity", but something that occurs in nature due to hormonal imbalances. Try to ask some of the "authorities" what a "woman" is -- they won't have an answer, because it'd be "offensive" to the AGPs.

Science always changes, but it doesn't say anything about the "infinite" amounts of "gender identities" that proponents claim "exist". How many "non-binary" genders are there? Can you prove, objectively speaking, the existence of "astrogenders" (just one of the many absurd "gender identities")? This "I'm a guy today but a girl tomorrow" shit sounds like a complete LARP. To make things more interesting, one can now be "transracial" and/or "transspecies". I once read a blog post that was written by an "earthworm" that lamented about how people were judging "it". In pre-"progressive" times, such types would be told to go seek help. Maybe we should start doing that again.

"Racist" is a code for anti-white. The favorite "card" pulled by those who want to exit an argument "gracefully". Most corporations are self-hating whites and international commies.

It is happening outside. Don't you realize it, with all the atrocities going on in the last several years and decades? The international bankers have never profited this much off a crisis (that they created themselves). Slowly, but surely, more people are waking up to this shit. Just like the problem of Systemd, and Devuan was created in response to it. If you see corruption, won't you speak up about it?

I didn't even get my "first" one -- I've realized it was a scam all along. The amount of sheep lining up for them, even to this day when "cases" are allegedly "going down", is astronomical. We are truly living in a Clown World. Give it until 2030 for the herd to be weeded out. You will own nothing and you will be happy.

"Cis"? There are only two genders: male and female. If you have a Y chromosome, you're male. No amount of HRT or surgery can change this. "Gender identity" is a lie perpetuated by psychopaths interested in forcing their degenerate garbage on children.

I agree. I haven't changed back to stable for the past two years. It helps to have firsthand experience with GNU/Linux before taking this route, but I've had very little worries at most. Bugs get fixed much quicker because of active development at hand.