xpra VS linux

FWIW I had decent success with Xpra on Linux, and it's still being actively developed, e.g. the HTML5 client is considered stable now: https://github.com/Xpra-org/xpra/

I use xpra for similar purposes (https://github.com/Xpra-org/xpra/)

> Xpra is known as "screen for X" : its seamless mode allows you to run X11 programs, usually on a remote host, direct their display to your local machine, and then to disconnect from these programs and reconnect from the same or another machine(s), without losing any state. Effectively giving you remote access to individual graphical applications. It can also be used to access existing desktop sessions and start remote desktop sessions.

I want to move to the "future", but I use several firefox profiles via xpra in combination with xdotool based hotkeys. The fluidity with which I can control my different profile windows without a mouse and with which I can switch between computers with no lag with this setup is a big reason why I have stuck with a Linux desktop, so I am sad to see those super powers go away for no perceived benefit. I have tried Wayland several times now and don't notice any performance differences, just more bugs in Wayland.

`xdotool search` seems like it has been deemed a security issue for reasons I can't understand (if someone has hacked in to the point that they can even run such query commands, surely I'm already pwn'd). Maybe I'm oversimplifying it, but to me it's like being upset that someone who broke into your house can see the color of your curtains. The powerful feature set of X far outweighs these minor security concerns.

And it looks like xpra is facing huge issues switching over https://github.com/Xpra-org/xpra/issues/387 :(, I have yet to be as satisfied with any other free remote desktop software (paid nomachine is close but less scriptable).

I hope these aren't fundamental limitations of wayland, but the challenges seem steep.

They all operate(d) their GPUs just fine. I'm a heavy user of VirtualGL + XPRA for remote graphics usage, which is a constant factor in my life and work. When they're not doing graphics of some sort, they're hunting pulsars in a GPU-centric compute mode.

I've long been a huge fan of Xpra https://github.com/Xpra-org/xpra , both because of its "screen for X" original focus (though now it supports shadowing an existing session).

There was NoMachine / nx / freenx but it always seemed to be a weird animal to me, requiring installation as a separate unix user, at least at the time.

One of my favorite bits of software is Xpra [0], "screen for X". You'd run it and it would start another X server (start apps in it with `DISPLAY=:1 xterm` or whatever), and you would "attach" it to your running X server with `xpra attach`.

You can attach to e.g. `ssh://hostname/:1`, so I ran a firefox instance on a homelab server and attached to it from my laptop and my desktop to not have to bother keeping bookmarks, tabs etc in sync.

[0] https://xpra.org/

I’ve used Xpra in the past to connect to a remote system for GUI stuff, but I almost exclusively use ssh because most of the time I don’t need to run a remote windowing system.

To add to this if you need to access graphical applications of an entire desktop environment you can use Xpra or MOONLIGHT (I suggest the second one if you want to game on the remote desktop or need very low latency in general), you can use both of these through a ssh tunnel (you need to enable this and X forwarding in the config) so if you setup and allow access to ssh correctly you can also use these without too much of a hassle.

Linux fernando-ipmh61r3 6.1.0-1006-oem #6-Ubuntu SMP PREEMPT_DYNAMIC Tue Jan 24 18:24:09 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux | NVIDIA-SMI 525.89.02 Driver Version: 525.89.02 CUDA Version: 12.0 | /etc/apt/sources.list:deb http://archive.ubuntu.com/ubuntu/ jammy main universe restricted multiverse /etc/apt/sources.list:deb http://archive.ubuntu.com/ubuntu/ jammy-updates main universe restricted multiverse /etc/apt/sources.list:deb http://archive.ubuntu.com/ubuntu/ jammy-backports main universe restricted multiverse /etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu/ jammy-security main universe restricted multiverse /etc/apt/sources.list.d/brave-browser-release.list:deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main /etc/apt/sources.list.d/cappelikan-ubuntu-ppa-jammy.list:deb http://ppa.launchpad.net/cappelikan/ppa/ubuntu/ jammy main /etc/apt/sources.list.d/librewolf.sources:Types: deb /etc/apt/sources.list.d/librewolf.sources:URIs: https://deb.librewolf.net /etc/apt/sources.list.d/librewolf.sources:Suites: jammy /etc/apt/sources.list.d/librewolf.sources:Components: main /etc/apt/sources.list.d/librewolf.sources:Architectures: amd64 /etc/apt/sources.list.d/librewolf.sources:Signed-By: /usr/share/keyrings/librewolf.gpg /etc/apt/sources.list.d/neon.list:deb http://archive.neon.kde.org/user/ jammy main /etc/apt/sources.list.d/nicotine-team-ubuntu-stable-jammy.list:deb http://ppa.launchpad.net/nicotine-team/stable/ubuntu/ jammy main /etc/apt/sources.list.d/obsproject-ubuntu-obs-studio-jammy.list:deb http://ppa.launchpad.net/obsproject/obs-studio/ubuntu/ jammy main /etc/apt/sources.list.d/openjdk-r-ubuntu-ppa-jammy.list:deb http://ppa.launchpad.net/openjdk-r/ppa/ubuntu/ jammy main /etc/apt/sources.list.d/org.kde.neon.net.launchpad.ppa.mozillateam.list:deb https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu/ jammy main /etc/apt/sources.list.d/winehq-jammy.sources:Types: deb /etc/apt/sources.list.d/winehq-jammy.sources:URIs: https://dl.winehq.org/wine-builds/ubuntu /etc/apt/sources.list.d/winehq-jammy.sources:Suites: jammy /etc/apt/sources.list.d/winehq-jammy.sources:Components: main /etc/apt/sources.list.d/winehq-jammy.sources:Architectures: amd64 i386 /etc/apt/sources.list.d/winehq-jammy.sources:Signed-By: /etc/apt/keyrings/winehq-archive.key /etc/apt/sources.list.d/xpra.sources:Types: deb /etc/apt/sources.list.d/xpra.sources:URIs: https://xpra.org /etc/apt/sources.list.d/xpra.sources:Suites: jammy /etc/apt/sources.list.d/xpra.sources:Components: main /etc/apt/sources.list.d/xpra.sources:Signed-By: /usr/share/keyrings/xpra.asc

FFS predates FreeBSD and is in some capacity supported by all 3 major BSDs. I'm fairly confident that Linux actually supports it through the ufs driver ( https://github.com/torvalds/linux/tree/master/fs/ufs ); whether the use of different names in different places makes it better or worse is an exercise for the reader.

These are a bit easier to see what's going on:

https://github.com/torvalds/linux/commit/d5cf50dafc9dd5faa1e...

https://github.com/torvalds/linux/blob/d5cf50dafc9dd5faa1e61...

Unfortunately Github doesn't have a way to render symbols for whitespace, but you can tell by selecting the spaces that the previous version had leading tabs. Linus changed it so that the tokens `default` and the number e.g. `12` are also separated by a tab. This is tricky, because the token "default" is seven characters, it will always give this added tab a width of 1 char which makes it always layout the same as if it were a space no matter if you use tab widths of 1, 2, 4, or 8.

There was also a Gentoo effort to run atop FreeBSD[0]. The challenge of course is that afaik none of the BSD kernel ABIs are considered stable. The stable interface is the BSD libc. That said, with binfmt_misc, I don't see a reason you couldn't just run (at least some) FreeBSD binaries on Linux with a thin syscall translation layer (rather something like qemu-system) and then your layer hooked via binfmt_misc. I'm not aware of anyone who has done this for FreeBSD, but prior efforts existed as alternate binfmts for SysVr4/5 ELF binaries[2]. Either way would take some elbow grease, but you *might* even be able just reuse binfmt_elf and just have a new interpreter for FreeBSD elf.

[0] https://wiki.gentoo.org/wiki/Gentoo_FreeBSD

[1] https://docs.kernel.org/admin-guide/binfmt-misc.html

[2] https://github.com/torvalds/linux/blob/master/fs/binfmt_elf....

> The original less-than check was deemed incorrect

It was only deemed incorrect because of an information leak. Not because it's a valid use-case for user space to copy smaller portions of *hwrpb into user space. https://github.com/torvalds/linux/commit/21c5977a836e399fc71...

Correct. And the combined work needs to carry the MIT license text and copyright attributions for the MIT software authors. With binary distribution it must also be overt, not hidden in some source code drop, but directly accompanying the binary.

Many people who talk about relicensing never credit the MIT developers or distribute the MIT license text. "Because it's GPL now."

I don't think that you believe that, but many developers do.

Some don't see the need for source code scans for Open Source compliance, because the license.txt says GPL, so it's GPL. Prime example is the Linux kernel. There is code under different licenses in there, but people don't even read https://github.com/torvalds/linux/blob/master/COPYING till the end ("In addition, other licenses may also apply.") and conclude it's simply GPL 2 and nothing else.

Also be aware that sublicensing is not the same as relicensing.

> Does he have something against it?

He notoriously hates GNU Emacs, yes.

https://marc.info/?m=122955159617722

https://github.com/torvalds/linux/blob/master/Documentation/...

So If we would only count code and not comments, it is only 9489 LoC Rust. Which would be about 0.03% and if we take all lines and not only LoC it would be around 0.05%

[0] https://github.com/XAMPPRocky/tokei

[1] https://github.com/torvalds/linux/commit/b401b621758e46812da...