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Beginner's critiques of Rust

Hey all. I've been a Java/C#/Python dev for a number of years. I noticed Rust topping the StackOverflow most loved language list earlier this year, and I've been hearing good things about Rust's memory model and "free" concurrency for awhile. When it recently came time to rewrite one of my projects as a small webservice, it seemed like the perfect time to learn Rust.
I've been at this for about a month and so far I'm not understanding the love at all. I haven't spent this much time fighting a language in awhile. I'll keep the frustration to myself, but I do have a number of critiques I wouldn't mind discussing. Perhaps my perspective as a beginner will be helpful to someone. Hopefully someone else has faced some of the same issues and can explain why the language is still worthwhile.
Fwiw - I'm going to make a lot of comparisons to the languages I'm comfortable with. I'm not attempting to make a value comparison of the languages themselves, but simply comparing workflows I like with workflows I find frustrating or counterintuitive.
Docs
When I have a question about a language feature in C# or Python, I go look at the official language documentation. Python in particular does a really nice job of breaking down what a class is designed to do and how to do it. Rust's standard docs are little more than Javadocs with extremely minimal examples. There are more examples in the Rust Book, but these too are super simplified. Anything more significant requires research on third-party sites like StackOverflow, and Rust is too new to have a lot of content there yet.
It took me a week and a half of fighting the borrow checker to realize that HashMap.get_mut() was not the correct way to get and modify a map entry whose value was a non-primitive object. Nothing in the official docs suggested this, and I was actually on the verge of quitting the language over this until someone linked Tour of Rust, which did have a useful map example, in a Reddit comment. (If any other poor soul stumbles across this - you need HashMap.entry().or_insert(), and you modify the resulting entry in place using *my_entry.value = whatever. The borrow checker doesn't allow getting the entry, modifying it, and putting it back in the map.)
Pit of Success/Failure
C# has the concept of a pit of success: the most natural thing to do should be the correct thing to do. It should be easy to succeed and hard to fail.
Rust takes the opposite approach: every natural thing to do is a landmine. Option.unwrap() can and will terminate my program. String.len() sets me up for a crash when I try to do character processing because what I actually want is String.chars.count(). HashMap.get_mut() is only viable if I know ahead of time that the entry I want is already in the map, because HashMap.get_mut().unwrap_or() is a snake pit and simply calling get_mut() is apparently enough for the borrow checker to think the map is mutated, so reinserting the map entry afterward causes a borrow error. If-else statements aren't idiomatic. Neither is return.
Language philosophy
Python has the saying "we're all adults here." Nothing is truly private and devs are expected to be competent enough to know what they should and shouldn't modify. It's possible to monkey patch (overwrite) pretty much anything, including standard functions. The sky's the limit.
C# has visibility modifiers and the concept of sealing classes to prevent further extension or modification. You can get away with a lot of stuff using inheritance or even extension methods to tack on functionality to existing classes, but if the original dev wanted something to be private, it's (almost) guaranteed to be. (Reflection is still a thing, it's just understood to be dangerous territory a la Python's monkey patching.) This is pretty much "we're all professionals here"; I'm trusted to do my job but I'm not trusted with the keys to the nukes.
Rust doesn't let me so much as reference a variable twice in the same method. This is the functional equivalent of being put in a straitjacket because I can't be trusted to not hurt myself. It also means I can't do anything.
The borrow checker
This thing is legendary. I don't understand how it's smart enough to theoretically track data usage across threads, yet dumb enough to complain about variables which are only modified inside a single method. Worse still, it likes to complain about variables which aren't even modified.
Here's a fun example. I do the same assignment twice (in a real-world context, there are operations that don't matter in between.) This is apparently illegal unless Rust can move the value on the right-hand side of the assignment, even though the second assignment is technically a no-op.
//let Demo be any struct that doesn't implement Copy. let mut demo_object: Option = None; let demo_object_2: Demo = Demo::new(1, 2, 3); demo_object = Some(demo_object_2); demo_object = Some(demo_object_2); 
Querying an Option's inner value via .unwrap and querying it again via .is_none is also illegal, because .unwrap seems to move the value even if no mutations take place and the variable is immutable:
let demo_collection: Vec = Vec::::new(); let demo_object: Option = None; for collection_item in demo_collection { if demo_object.is_none() { } if collection_item.value1 > demo_object.unwrap().value1 { } } 
And of course, the HashMap example I mentioned earlier, in which calling get_mut apparently counts as mutating the map, regardless of whether the map contains the key being queried or not:
let mut demo_collection: HashMap = HashMap::::new(); demo_collection.insert(1, Demo::new(1, 2, 3)); let mut demo_entry = demo_collection.get_mut(&57); let mut demo_value: &mut Demo; //we can't call .get_mut.unwrap_or, because we can't construct the default //value in-place. We'd have to return a reference to the newly constructed //default value, which would become invalid immediately. Instead we get to //do things the long way. let mut default_value: Demo = Demo::new(2, 4, 6); if demo_entry.is_some() { demo_value = demo_entry.unwrap(); } else { demo_value = &mut default_value; } demo_collection.insert(1, *demo_value); 
None of this code is especially remarkable or dangerous, but the borrow checker seems absolutely determined to save me from myself. In a lot of cases, I end up writing code which is a lot more verbose than the equivalent Python or C# just trying to work around the borrow checker.
This is rather tongue-in-cheek, because I understand the borrow checker is integral to what makes Rust tick, but I think I'd enjoy this language a lot more without it.
Exceptions
I can't emphasize this one enough, because it's terrifying. The language flat up encourages terminating the program in the event of some unexpected error happening, forcing me to predict every possible execution path ahead of time. There is no forgiveness in the form of try-catch. The best I get is Option or Result, and nobody is required to use them. This puts me at the mercy of every single crate developer for every single crate I'm forced to use. If even one of them decides a specific input should cause a panic, I have to sit and watch my program crash.
Something like this came up in a Python program I was working on a few days ago - a web-facing third-party library didn't handle a web-related exception and it bubbled up to my program. I just added another except clause to the try-except I already had wrapped around that library call and that took care of the issue. In Rust, I'd have to find a whole new crate because I have no ability to stop this one from crashing everything around it.
Pushing stuff outside the standard library
Rust deliberately maintains a small standard library. The devs are concerned about the commitment of adding things that "must remain as-is until the end of time."
This basically forces me into a world where I have to get 50 billion crates with different design philosophies and different ways of doing things to play nicely with each other. It forces me into a world where any one of those crates can and will be abandoned at a moment's notice; I'll probably have to find replacements for everything every few years. And it puts me at the mercy of whoever developed those crates, who has the language's blessing to terminate my program if they feel like it.
Making more stuff standard would guarantee a consistent design philosophy, provide stronger assurance that things won't panic every three lines, and mean that yes, I can use that language feature as long as the language itself is around (assuming said feature doesn't get deprecated, but even then I'd have enough notice to find something else.)
Testing is painful
Tests are definitively second class citizens in Rust. Unit tests are expected to sit in the same file as the production code they're testing. What?
There's no way to tag tests to run groups of tests later; tests can be run singly, using a wildcard match on the test function name, or can be ignored entirely using [ignore]. That's it.
Language style
This one's subjective. I expect to take some flak for this and that's okay.
submitted by crab1122334 to rust [link] [comments]

./play.it 2.12: API, GUI and video games

./play.it 2.12: API, GUI and video games

./play.it is a free/libre software that builds native packages for several Linux distributions from DRM-free installers for a collection of commercial games. These packages can then be installed using the standard distribution-provided tools (APT, pacman, emerge, etc.).
A more complete description of ./play.it has already been posted in linux_gaming a couple months ago: ./play.it, an easy way to install commercial games on GNU/Linux
It's already been one year since version 2.11 was released, in January 2019. We will only briefly review the changelog of version 2.12 and focus on the different points of ./play.it that kept us busy during all this time, and of which coding was only a small part.

What’s new with 2.12?

Though not the focus of this article, it would be a pity not to present all the added features of this brand new version. ;)
Compared to the usual updates, 2.12 is a major one, especially since for two years, we slowed down the addition of new features. Some patches took dust since the end of 2018 before finally be integrated in this update!
The list of changes for this 2.12 release can be found on our forge. Here is a full copy for convenience:

Development migration

History

As many free/libre projects, ./play.it development started on some random sector of a creaking hard drive, and unsurprisingly, a whole part of its history (everything predating version 1.13.15 released on Mars 30th, 2016) disappeared into the limbs because some unwise operation destroyed the only copy of the repository… Lesson learned, what's not shared don't stay long, and so was born the first public Git repository of the project. The easing of collaborative work was only accidentally achieved by this quest for eternity, but wasn't the original motivation for making the repository publicly available.
Following this decision, ./play.it source code has been hosted successively by many shared forge platforms:

Dedicated forge

As development progressed, ./play.it began to increase its need for resources, dividing its code into several repositories to improve the workflow of the different aspects of the projects, adding continuous integration tests and their constraints, etc. A furious desire to understand the nooks and crannies behind a forge platform was the last deciding factor towards hosting a dedicated forge.
So it happened, we deployed a forge platform on a dedicated server, hugely benefiting from the tremendous work achieved by the GitLab's package Debian Maintainers team. In return, we tried to contribute our findings in improving this software packaging.
That was not expected, but this migration happened just a little time before the announcement “Déframasoftisons Internet !” (French article) about the planned end of Framagit.
This dedicated instance used to be hosted on a VPS rented from Digital Ocean until the second half of July 2020, and since then has been moved to another VPS, rented from Hetzner. The specifications are similar, as well as the service, but thanks to this migration our hosting costs have been cut in half. Keeping in mind that this is paid by a single person, so any little donation helps a lot on this front. ;)
To the surprise of our system administrator, this last migration took only a couple hours with no service interruption reported by our users.

Forge access

This new forge can be found at forge.dotslashplay.it. Registrations are open to the public, but we ask you to not abuse this, the main restriction being that we do not wish to host projects unrelated to ./play.it. Of course exceptions are made for our active contributors, who are allowed to host some personal projects there.
So, if you wish to use this forge to host your own work, you first need to make some significant contributions to ./play.it.

API

The collection of supported games growing endlessly, we have started the development of a public API allowing access to lots of information related to ./play.it.
This API, which is not yet stabilized, is simply an interface to a versioned database containing all the ./play.it scripts, handled archives, games installable through the project. Relations are, of course, handled between those items, enabling its use for requests like : « What packages are required on my system to install Cæsar Ⅲ ? » or « What are the free (as in beer) games handled via DOSBox ? ».
Originally developed as support for the new, in-development, Web site (we'll talk about it later on), this API should facilitate the development of tools around ./play.it. For example, it'll be useful for whomever would like to build a complete video game handling software (downloading, installation, starting, etc.) using ./play.it as one of its building bricks.
For those curious about the technical side, it's an API based on Lumeneffectuant that makes requests on a MariaDB database, all self-hosted on a Debian Sid. Not only is the code of the API versioned on our forge, but also the structure and content of the databases, which will allow those who desired it to install a local version easily.

New website

Based on the aforementioned API, a new website is under development and will replace our current website based on DokuWiki.
Indeed, if the lack of database and the plain text files structure of DokuWiki seemed at first attractive, as ./play.it supported only a handful of games (link in French), this feature became more inconvenient as the library of ./play.it supported games grew.
We shall make an in-depth presentation of this website for the 2.13 release of ./play.it, but a public demo of the development version from our forge is already available.
If you feel like providing an helping hand on this task, some priority tasks have been identified to allow opening a new Web site able to replace the current one. And for those interested in technical details, this web Site was developed in PHP using the framework Laravel. The current in-development version is hosted for now on the same Debian Sid than the API.

GUI

A regular comment that is done about the project is that, if the purpose is to make installing games accessible to everyone without technical skills, having to run scripts in the terminal remains somewhat intimidating. Our answer until now has been that while the project itself doesn't aim to providing a graphical interface (KISS principle "Keep it simple, stupid"), still and always), but that it would be relatively easy to, later on, develop a graphical front-end to it.
Well, it happens that is now reality. Around the time of our latest publication, one of our contributors, using the API we just talked about, developed a small prototype that is usable enough to warrant a little shout out. :-)
In practice, it is some small Python 3 code (an HCI completely in POSIX shell is for a later date :-°), using GTK 3 (and still a VTE terminal to display the commands issued, but the user shouldn't have to input anything in it, except perhaps the root password to install some packages). This allowed to verify that, as we used to say, it would be relatively easy, since a script of less than 500 lines of code (written quickly over a week-end) was enough to do the job !
Of course, this graphical interface project stays independent from the main project, and is maintained in a specific repository. It seems interesting to us to promote it in order to ease the use of ./play.it, but this doesn't prevent any other similar projects to be born, for example using a different language or graphical toolkit (we, globally, don't have any particular affinity towards Python or GTK).
The use of this HCI needs three steps : first, a list of available games is displayed, coming directly from our API. You just need to select in the list (optionally using the search bar) the game you want to install. Then it switches to a second display, which list the required files. If several alternatives are available, the user can select the one he wants to use. All those files must be in the same directory, the address bar on the top enabling to select which one to use (click on the open button on the top opens a filesystem navigation window). Once all those files available (if they can be downloaded, the software will do it automatically), you can move ahead to the third step, which is just watching ./play.it do its job :-) Once done, a simple click on the button on the bottom will run the game (even if, from this step, the game is fully integrated on your system as usual, you no longer need this tool to run it).
To download potentially missing files, the HCI will use, depending on what's available on the system, either wget, curl or aria2c (this last one also handling torrents), of which the output will be displayed in the terminal of the third phase, just before running the scripts. For privilege escalation to install packages, sudo will be used preferentially if available (with the option to use a third-party application for password input, if the corresponding environment variable is set, which is more user-friendly), else su will be used.
Of course, any suggestion for an improvement will be received with pleasure.

New games

Of course, such an announcement would not be complete without a list of the games that got added to our collection since the 2.11 release… So here you go:
If your favourite game is not supported by ./play.it yet, you should ask for it in the dedicated tracker on our forge. The only requirement to be a valid request is that there exists a version of the game that is not burdened by DRM.

What’s next?

Our team being inexhaustible, work on the future 2.13 version has already begun…
A few major objectives of this next version are :
If your desired features aren't on this list, don't hesitate to signal it us, in the comments of this news release. ;)

Links

submitted by vv224 to linux_gaming [link] [comments]

[TUTORIAL] How to use Multi-Monitors with Hybrid Graphics Card Intel-Nvidia in notebooks (tried with: Asus Rog Strix G531-GT) - DEBIAN BUSTER

Hello guys! I`m going to do this tutorial because i tried to use multi-monitor in my laptop for a long time and that was a big problem for my case.
This tutorial is for people who have a hybrid graphics card and bumblebee in debian.
My case:
- Rog Strix G531-GT (notebook)
- Intel® UHD Graphics 630
- GTX 1650

So, to it work, first you need to install all the NVIDIA drivers and get it working with the optirun command.
In my case i tried stable nvidia drivers which was Version 418.152, but it have some bugs after install when i tried to configure the xorg.conf file, which when start says something about missing device "mouse0". I reinstall all the debian and tried to use the backports, which have the Version 440.100 (via buster-backports) of nvidia drivers, and it installed well.
#ONLY USE BACKPORTS OR ONLY USE STABLE, DO NOT USE BOTH!
FIRST, VERY IMPORTANT: You should check which driver is okay for you, maybe trying one, if that is good and u dont see "bugs" when trying to configure, use it... In my case 418.152 give me a lot of bugs... i tried 440.100 and it worked ok. If you are using backports, try to download everything at the BACKPORTS, and not the STABLE one! If u are using the STABLE one, continues using the STABLE
To do it, first add the backport repository to /etc/apt/sources.list, which actually is
deb http://deb.debian.org/debian buster-backports main contrib non-free
deb-src http://deb.debian.org/debian buster-backports main contrib non-free

After that, to install linux headers and nvidia-driver do:
- apt update
- apt install -t buster-backports linux-headers-amd64
- apt install -t buster-backports nvidia-driver


Reboot and after that u already have the nvidia-drivers installed, BUT not working because the system dont use the nvidia driver by default. Next step is installation of two packages: bumblebee-nvidia and primus. So now you need to install bumblebee:
- apt install -t buster-backports bumblebee-nvidia primus
- apt install -t buster-backports mesa-utils \you will need the) mesa-utils too for some commands
I didnt need permissions to use the bumblebee commands, but if you need, follow that Post-installation


You may need to blacklist the nouveau drivers, because we are using the nvidia proprietary drivers. To do it, run:
- $ sudo bash -c "echo blacklist nouveau > /etc/modprobe.d/blacklist-nvidia-nouveau.conf"
- $ sudo bash -c "echo options nouveau modeset=0 >> /etc/modprobe.d/blacklist-nvidia-nouveau.conf"
then run
- $ cat /etc/modprobe.d/blacklist-nvidia-nouveau.conf
And the output should be like that:
blacklist nouveau
options nouveau modeset=0
The nouveau drivers are blacklisted successfully!


Now we have a lot of configurations to do.
The next thing to do is go to /etc/bumblebee/bumblebee.conf and open with nano.
add - Driver=nvidia
it should looks like:
# Configuration file for Bumblebee. Values should **not** be put between quotes ## Server options. Any change made in this section will need a server restart # to take effect. [bumblebeed] # The secondary Xorg server DISPLAY number VirtualDisplay=:8 # Should the unused Xorg server be kept running? Set this to true if waiting # for X to be ready is too long and don't need power management at all. KeepUnusedXServer=false # The name of the Bumbleblee server group name (GID name) ServerGroup=bumblebee # Card power state at exit. Set to false if the card shoud be ON when Bumblebee # server exits. TurnCardOffAtExit=false # The default behavior of '-f' option on optirun. If set to "true", '-f' will # be ignored. NoEcoModeOverride=false # The Driver used by Bumblebee server. If this value is not set (or empty), # auto-detection is performed. The available drivers are nvidia and nouveau # (See also the driver-specific sections below) Driver=nvidia # Directory with a dummy config file to pass as a -configdir to secondary X XorgConfDir=/etc/bumblebee/xorg.conf.d # Xorg binary to run XorgBinary=/uslib/xorg/Xorg ## Client options. Will take effect on the next optirun executed. [optirun] # Acceleration/ rendering bridge, possible values are auto, virtualgl and # primus. Bridge=auto # The method used for VirtualGL to transport frames between X servers. # Possible values are proxy, jpeg, rgb, xv and yuv. VGLTransport=proxy # List of paths which are searched for the primus libGL.so.1 when using # the primus bridge PrimusLibraryPath=/uslib/x86_64-linux-gnu/primus:/uslib/i386-linux-gnu/primus # Should the program run under optirun even if Bumblebee server or nvidia card # is not available? AllowFallbackToIGC=false # Driver-specific settings are grouped under [driver-NAME]. The sections are # parsed if the Driver setting in [bumblebeed] is set to NAME (or if auto- # detection resolves to NAME). # PMMethod: method to use for saving power by disabling the nvidia card, valid # values are: auto - automatically detect which PM method to use # bbswitch - new in BB 3, recommended if available 

After that, go to /etc/bumblebee/xorg.conf.nouveau and open with nano.
add - BusID "", ex. BusID "PCI:00:02:0" in the Section "Device" \ to see the ID of your graphic cards, run in console: lspci | egrep 'VGA|3D')
it should looks like:
# Configuration file for Bumblebee. Values should **not** be put between quotes ## Server options. Any change made in this section will need a server restart # to take effect. [bumblebeed] # The secondary Xorg server DISPLAY number VirtualDisplay=:8 # Should the unused Xorg server be kept running? Set this to true if waiting # for X to be ready is too long and don't need power management at all. KeepUnusedXServer=false # The name of the Bumbleblee server group name (GID name) ServerGroup=bumblebee # Card power state at exit. Set to false if the card shoud be ON when Bumblebee # server exits. TurnCardOffAtExit=false # The default behavior of '-f' option on optirun. If set to "true", '-f' will # be ignored. NoEcoModeOverride=false # The Driver used by Bumblebee server. If this value is not set (or empty), # auto-detection is performed. The available drivers are nvidia and nouveau # (See also the driver-specific sections below) Driver=nvidia # Directory with a dummy config file to pass as a -configdir to secondary X XorgConfDir=/etc/bumblebee/xorg.conf.d # Xorg binary to run XorgBinary=/uslib/xorg/Xorg ## Client options. Will take effect on the next optirun executed. [optirun] # Acceleration/ rendering bridge, possible values are auto, virtualgl and # primus. Bridge=auto # The method used for VirtualGL to transport frames between X servers. # Possible values are proxy, jpeg, rgb, xv and yuv. VGLTransport=proxy # List of paths which are searched for the primus libGL.so.1 when using # the primus bridge PrimusLibraryPath=/uslib/x86_64-linux-gnu/primus:/uslib/i386-linux-gnu/primus # Should the program run under optirun even if Bumblebee server or nvidia card # is not available? AllowFallbackToIGC=false # Driver-specific settings are grouped under [driver-NAME]. The sections are # parsed if the Driver setting in [bumblebeed] is set to NAME (or if auto- # detection resolves to NAME). # PMMethod: method to use for saving power by disabling the nvidia card, valid # values are: auto - automatically detect which PM method to use # bbswitch - new in BB 3, recommended if available # switcheroo - vga_switcheroo method, use at your own risk # none - disable PM completely # https://github.com/Bumblebee-Project/Bumblebee/wiki/Comparison-of-PM-methods ## Section with nvidia driver specific options, only parsed if Driver=nvidia [driver-nvidia] # Module name to load, defaults to Driver if empty or unset KernelDriver=nvidia PMMethod=auto # colon-separated path to the nvidia libraries LibraryPath=/uslib/x86_64-linux-gnu/nvidia:/uslib/i386-linux-gnu/nvidia:/uslib/x86_64-linux-gnu:/uslib/i386-linux-gnu # comma-separated path of the directory containing nvidia_drv.so and the # default Xorg modules path XorgModulePath=/uslib/nvidia,/uslib/xorg/modules XorgConfFile=/etc/bumblebee/xorg.conf.nvidia # If set to true, will always unload the kernel module(s) even with # PMMethod=none - useful for newer Optimus models on which the kernel power # management works out of the box to power the card on/off without bbswitch. AlwaysUnloadKernelDriver=false ## Section with nouveau driver specific options, only parsed if Driver=nouveau [driver-nouveau] KernelDriver=nouveau PMMethod=auto XorgConfFile=/etc/bumblebee/xorg.conf.nouveau 

Do the same in /etc/bumblebee/xorg.conf.nvidia, and put the ID of the Discrete Nvidia Card.
add - BusID ""
add - Option "AllowEmptyInitialConfiguration" "true"
and at the END of the file, add
Section "Screen" Identifier "Screen0" Device "DiscreteNVidia" EndSection 
it should look like:
Section "ServerLayout" Identifier "Layout0" Option "AutoAddDevices" "true" Option "AutoAddGPU" "false" EndSection Section "Device" Identifier "DiscreteNvidia" Driver "nvidia" VendorName "NVIDIA Corporation" # If the X server does not automatically detect your VGA device, # you can manually set it here. # To get the BusID prop, run `lspci | egrep 'VGA|3D'` and input the data # as you see in the commented example. # This Setting may be needed in some platforms with more than one # nvidia card, which may confuse the proprietary driver (e.g., # trying to take ownership of the wrong device). Also needed on Ubuntu 13.04. BusID "PCI:01:00:0" # Setting ProbeAllGpus to false prevents the new proprietary driver # instance spawned to try to control the integrated graphics card, # which is already being managed outside bumblebee. # This option doesn't hurt and it is required on platforms running # more than one nvidia graphics card with the proprietary driver. # (E.g. Macbook Pro pre-2010 with nVidia 9400M + 9600M GT). # If this option is not set, the new Xorg may blacken the screen and # render it unusable (unless you have some way to run killall Xorg). Option "ProbeAllGpus" "false" Option "AllowEmptyInitialConfiguration" "true" Option "NoLogo" "true" Option "UseEDID" "true" # Option "UseDisplayDevice" "none" EndSection Section "Screen" Identifier "Screen0" Device "DiscreteNVidia" EndSection 
REBOOT NOW, IS IMPORTANT!!


At this point, the TEST for bumblebee should be working!
Test
Install mesa-demos and use glxgears to test if if Bumblebee works with your Optimus system:
$ optirun glxgears -info
If it fails, try the following commands:
64 bit system:
$ optirun glxspheres64
32 bit system:
$ optirun glxspheres32
If the window with animation shows up, Optimus with Bumblebee is working.
Note: If glxgears failed, but glxspheresXX worked, always replace "glxgears" with "glxspheresXX" in all cases.
If the bumblebee still not working, you should look why isnt it working. You can ask me maybe i can help with some information! I tried a lot of things and maybe i can help.
now finally, you can run anything with the optirun command, like: optirun virtualbox... or optirun (a game) and it will work with you graphic card.
But still, when you connect a monitor at the HDMI output, the monitor will not work...
For that, finnaly, we can do that:
To use multi monitors, we need to see this section, which is what happen to me: Output wired to the NVIDIA chip
At this point, you may need to configure the /etc/X11/xorg.conf.d/20-intel.conf
and /etc/bumblebee/xorg.conf.nvidia, as it says in the tutorial. After that reboot your system and try again the command: optirun intel-virtual-output
It should finally works, if you have connected another monitor in HDMI output and try the command optirun intel-virtual-output, it will start in the monitor a continuation for the X session, which works pretty well!!

Well, that was hard to do for me, and i hope that information can help someone. If something is confusing or you cant do the second monitor work, just type in comments, i will try to help...

One important thing to do is: do not try to use xorg.conf file, just delete it and keep the linux to do it by itself. Every time which i tried to use the xorg.conf file it broke my gnome startup and i need to start debian in recovery mode and go to /etc/X11, and run rm -R xorg.conf (which delete the xorg file), or rename it to the linux do not read the informations there.
#TIPS: For a good use of that, you can go to debian keyboard configuration, and configure a new shortcut with the command optirun intel-virtual-output.
When you press ctrl+alt+y that will start the second monitor for you :D
https://preview.redd.it/3luethknnfj51.png?width=987&format=png&auto=webp&s=a7eaf1a4c029237fd9b25ca0194c99d84fcb83a5
so that is #learning_with_linux
thanks

https://preview.redd.it/8g753mxelfj51.jpg?width=4032&format=pjpg&auto=webp&s=1d24f618dcd3bb92a760a531112e5e3852e524d5
submitted by MrMineToons to debian [link] [comments]

MAME 0.222

MAME 0.222

MAME 0.222, the product of our May/June development cycle, is ready today, and it’s a very exciting release. There are lots of bug fixes, including some long-standing issues with classics like Bosconian and Gaplus, and missing pan/zoom effects in games on Seta hardware. Two more Nintendo LCD games are supported: the Panorama Screen version of Popeye, and the two-player Donkey Kong 3 Micro Vs. System. New versions of supported games include a review copy of DonPachi that allows the game to be paused for photography, and a version of the adult Qix game Gals Panic for the Taiwanese market.
Other advancements on the arcade side include audio circuitry emulation for 280-ZZZAP, and protection microcontroller emulation for Kick and Run and Captain Silver.
The GRiD Compass series were possibly the first rugged computers in the clamshell form factor, possibly best known for their use on NASA space shuttle missions in the 1980s. The initial model, the Compass 1101, is now usable in MAME. There are lots of improvements to the Tandy Color Computer drivers in this release, with better cartridge support being a theme. Acorn BBC series drivers now support Solidisk file system ROMs. Writing to IMD floppy images (popular for CP/M computers) is now supported, and a critical bug affecting writes to HFE disk images has been fixed. Software list additions include a collection of CDs for the SGI MIPS workstations.
There are several updates to Apple II emulation this month, including support for several accelerators, a new IWM floppy controller core, and support for using two memory cards simultaneously on the CFFA2. As usual, we’ve added the latest original software dumps and clean cracks to the software lists, including lots of educational titles.
Finally, the memory system has been optimised, yielding performance improvements in all emulated systems, you no longer need to avoid non-ASCII characters in paths when using the chdman tool, and jedutil supports more devices.
There were too many HyperScan RFID cards added to the software list to itemise them all here. You can read about all the updates in the whatsnew.txt file, or get the source and 64-bit Windows binary packages from the download page.

MAME Testers Bugs Fixed

New working machines

New working clones

Machines promoted to working

Clones promoted to working

New machines marked as NOT_WORKING

New clones marked as NOT_WORKING

New working software list additions

Software list items promoted to working

New NOT_WORKING software list additions

submitted by cuavas to emulation [link] [comments]

ASIC Regulation Thread - Regarding the proposed changes ( Australians effected the most )

I'm hopeless at formatting text, so if you think you can structure this post better take everything i write and put it into an easy to digest way. I'm just going to type out everything i know in text as fast as possible. I'm not a legal expert, I'm not somehow who understands every bit of information in the PDF's below, but i know I'm a retail trader that uses leverage to make profit which is why I'm posting this, in the hope that someone who can run a charge better than me, will.
Some of you are already aware of what might be happening, this is just a post to educate retail traders on changes that might be coming to certain brokers. This effects Australian Customers the most, but also effects those living in other countries that use Australian brokers, such as Pepperstone and others.
Last year in August 2019, ASIC ( Australian Securities and Investments Commission ) was concerned about retail traders going into Forex and Binary options without understanding these instruments properly and started sticking their noses in for tough regulation.
ASIC asked brokers and anyone with interest in the industry to write to them and explain what should and should not change from the changes they proposed, some of the proposed changes are very misguided and come from a lack of understanding exactly how OTC derivatives actually work.
I will provide the link to the paper further down so you can read it yourself and i will provide a link to all the submission made by all parties that sent submissions to ASIC, however the 2 main points of debate are:
1, To reduce the overall leverage available to retail traders to either 20:1 or 30:1. This means people who currently use leverage such as 100:1 to 500:1 and everything in between will be effected the most, even more so are those traders with relatively small accounts, meaning in order to get your foot in the door to trading you will need more capital for it to be viable.
^^ This point above is very important.
2, The removing of Binary options trading, which basically includes products like "Bet if gold will rise to this price in the next 30 seconds" This sort of stuff. So far from all the submissions from brokers and individuals nobody really cares if this changes as far as i know, though if you have concerns about this i would start voicing your disapproval. Though i would not waste your time here, all is pointing to this being eradicated completely with brokers also supporting the changes, I've never used such a product and know very little about them.
^^ This point above isn't very important and will probably be enforced in the future.
Still to this day i see retail traders not understanding leverage, they think of it as "dangerous and scary", it's not, position size is the real danger, not leverage. So ASIC is aiming to limit retail traders access to high leverage, they are claiming it is a way to protect traders who don't really understand what they are getting into by attacking leverage and not the real problem which is position size relative to your capital.
If it was truly about protecting retail traders from blowing up their accounts, they would look for ways to educate traders on "understanding position sizes and why it's important" rather than attacking leverage, but their goal is misguided or has an ulterior motive . I will give you a small example below.
EXAMPLE - We will use 2 demo accounts for demonstration purposes. If you don't understand my example, i suggest you try it for yourself. - Skip if not interested in examples.
Lets say we open 2 demo accounts with $1000 in both, one with 20:1 leverage and one with 500:1 leverage and we open an identical position on both accounts ( say a micro lot '0.01' on EURUSD ). You are safer on the 500:1 account as you don't need to put up as much margin as collateral as you would on the 20:1. If the trade we just opened goes against us and continues against us, the account with 20:1 leverage will run out of free margin a lot faster than the 500:1 account. In this simple example is shows you that leverage is not dangerous but safer and gives you a lot more breathing room. This trade was a small micro lot, so it would take hundreds of pips movements to get margin called and blow up that $1000 on each account. Lets now use a different position size to truly understand why retail traders blow up accounts and is the reason why trading can be dangerous.
This time instead of opening a micro lot of '0.01' on our $1000 dollar demo accounts, lets open a position size much larger, 5 lots. Remember we only have $1000 and we are about to open a position much larger relative to our capital ( which we should never do because we can't afford to do that ) the 20:1 probably wont even let you place that trade if you don't have enough margin as collateral or if you could open the position you would have a very tiny amount of free margin left over, meaning a small pip movement against you will instantly blow up your $1000 account. On the 500:1 account you wouldn't need to put up as much margin as collateral with more free margin if the trade goes bad, but again a small movement could blow up your account. In this example, both accounts were dangerous because the lack of understanding position sizes, opening a position you can't afford to open. This is what the true danger is, not the leverage.
Even in the second example, the higher leverage would "margin call" you out later. So i would go as far to say that lower leverage is more dangerous for you because it margin calls you out faster and just by having a lower leverage doesn't stop you from opening big positions that can blow you up in a 5 pip movement anymore, any leverage size is dangerous if you're opening positions you can't afford to open. This is also taking into consideration that no risk management is being used, with risk management higher leverage is even more powerful.
ASIC believes lowering leverage will stop people opening positions that they can't afford. When the reality is no matter how much capital you have $500, $1000, $5000, $50,000, $500,000, $5,000,000. You don't open position sizes that will blow that capital up completely with small movements. The same thing can happen on a 20:1 or 500:1 account.
Leverage is a tool, use it, if your on a lower leverage already such as 20:1, 30:1 it means your country has been regulated and you already have harder trading conditions. Just remember higher leverage allows you to open larger position sizes in total for the amount of money you own, but the issue is NOT that your using the higher leverage but because you are opening positions you can't afford, for what ever reason that is, the only fix for this is education and will not be fixed by simply lowing leverage, since you can just as easy blow up your account on low leverage just as fast or if not faster.
So what is going on?
There might ( get your tinfoil hats on ) be more that is involved here, deeper than you think, other agendas to try and stop small time retail traders from making money via OTC products, theories such as governments not wanting their citizens to be traders, rather would prefer you to get out there and work a 9 to 5 instead. Effective ways to do this would be making conditions harder with a much larger barrier of entry and the best way to increase the barrier of entry for retail traders is to limit leverage, lower leverage means you need to put up more money, less breathing room for trades, lower potential. They are limiting your upside potential and the downside stays the same, a blown account is a blow account.
Think of leverage as a weapon, a person wielding a butchers knife can probably destroy a person wielding a steak knife, but both knifes can prove fatal. They want to make sure your holding the butter knife then tell you to butcher a cow with it. 30:1 leverage is still workable and can still be profitable, but not as profitable as 500:1 accounts. This is why they are allowing professionals to use high leverage, this gives them another edge over successful retail traders who will still be trying to butcher a cow with a butter knife, while they are slaying limbs off the cow with machetes.
It's a way to hamstring you and keep you away rather than trying to "protect" you. The real danger is not leverage, they are barking up the wrong tree, how convenient to be barking up the very tree most retail traders don't fully understand ( leverage) , pass legislation to make trading conditions harder and at the same time push the narrative that trading is dangerous by making it even harder. A full circle strategy to make your trading conditions worse, so you don't succeed.
Listen carefully especially if you trade with any of the brokers that have provided their submissions to ASIC. Brokers want to seem like they are on your side and so far some of the submissions ( i haven't read them all ) have brokers willing to drop their leverage down to 30:1 because they know by dropping the leverage down it will start margin calling out their clients at a much faster rate, causing more blown up accounts / abandoned accounts with residual margin called funds, but they also know that if they make trading environments too hard less people will trade or even worse move their funds elsewhere offshore to unregulated brokers that offer higher leverage.
Right now it's all just a proposal, but as governments expand and continue to gain more control over it's citizens, it's just a matter of time till it's law, it's up to you to be vocal about it, let your broker know that if they drop their leverage, you're out, force them to fight for you.
If you have any more information related to this, or have anything to add, post below. I'm not an expert at this technical law talk, i know that i do well with 500:1 leverage and turn profits with it, it would be harder for me to do on a lower leverage, this is the reason for my post.
All related documents HERE
CP-322 ( Consultation paper 322 ) & Submissions from brokers and others.
https://asic.gov.au/regulatory-resources/find-a-document/consultation-papers/cp-322-product-intervention-otc-binary-options-and-cfds/
submitted by southpaw_destroyer to Forex [link] [comments]

Attention, my name is Vihaan Khatri.

My name is Vihaan Khatri, I’m 28 years old and I live in Kolkata. A week ago I bought a new Bentley, as it’s six months since I worked at the car wash and barely had enough to feed my family.
Now I’m going to tell you how a casual meeting changed my life and gave me the chance to earn $2000 a day. I’ll tell you a little about myself. Poverty – that’s how I would describe my whole life. My parents lived in poverty, I never went to university. After finishing school, I went to work at a car wash.
When I was young, my salary was sufficient for me. But when I got married and my daughter was born, I started getting into serious financial problems and permanent debt. What to do – I had no idea; the debts were mounting but I couldn’t quit the job because it was my only source of income..
One afternoon a new BMW drove into the car wash. A young man stepped out of the car, he looked to be around 18 to 19. I was always amazed how young people could earn so much money. I said to myself quietly: “What do you have to do to drive a car like that?” But he heard me and laughed. “Binary options” – he said and went away.
Those two words changed my life forever. When I got home, I sat down at the computer and started looking for some mentions of binary options. And so, a month passed: during the day I would work at the car wash, and by night I would read dozens of forums to understand how to use binary options. I found the Olymp Trade web page and registered on there for free.
They let me open a demo account for $10,000 using virtual money, as well as providing free instructions. This helped me a lot in the beginning, when I still didn’t know how to work with binary options and I didn’t want to invest my own money. On the Olymp Trade web page, all the calculations are done in US dollars I received the payments in US dollars as well. After two or three weeks, there was $10,000 in my account. The only problem was that this was only some algorithms on the screen, I couldn’t actually withdraw any cash.
That was when I decided to invest $100 in my account. I don’t trust some of the Internet web pages, so I didn’t want to risk too much. That night I didn’t sleep much – I traded all night, then I went to work. And guess what? That night I earned $153! All day at work, all I could think of was binary options. As soon as I got back home, I sat down at the computer, but tiredness got the better of me. That night I didn’t trade much – I earned just $33 and went to sleep. I remember those days well, the only thing that mattered to me was binary options – I would arrive home and start trading right away. After a week, my account had $1220 in it!!! I know, it’s not a huge amount, but this was only the beginning; I didn’t dare trade using large sums of money. I thought I’d better checkout the web page, so I sent a transfer of all my money ($1220) to a card. An hour later, I received a telephone message saying that the money was in my card! I was happy.
After that, I invested $500 in my account and started dealing more boldly. After two weeks I had earned $10,000, and within a month I had left work. After that, I paid of all my debts and for the first time in my life, I took a vacation with my family to rest. This didn’t stop me trading though, because to earn money, all I needed was a laptop, or a mobile phone with Internet access.
When we returned home, I bought myself BENTLEY and decided to write this blog just for you – workers like I was, who are fed up of working every day from morning until night, for a measly wage. Remember that life wasn’t given to us for that. Register now, and be sure to complete the instruction course in the demo account without risking losing real money. Nowadays, I don’t see any real way to earn money while sitting at the computer or telephone, except binary options. After buying the BENTLEY, there was still $27,183 left over in my account. My goal was to earn $300,000 by the summer and buy a house for my beloved family. Good luck everyone, and thank you for your attention.
submitted by makes-me-wonder to copypasta [link] [comments]

Attention. I am Vihaan Khatri

My name is Vihaan Khatri, I’m 28 years old and I live in Kolkata. A week ago I bought a new Bentley, as it’s six months since I worked at the car wash and barely had enough to feed my family.
Now I’m going to tell you how a casual meeting changed my life and gave me the chance to earn $2000 a day. I’ll tell you a little about myself. Poverty – that’s how I would describe my whole life. My parents lived in poverty, I never went to university. After finishing school, I went to work at a car wash.
When I was young, my salary was sufficient for me. But when I got married and my daughter was born, I started getting into serious financial problems and permanent debt. What to do – I had no idea; the debts were mounting but I couldn’t quit the job because it was my only source of income..
One afternoon a new BMW drove into the car wash. A young man stepped out of the car, he looked to be around 18 to 19. I was always amazed how young people could earn so much money. I said to myself quietly: “What do you have to do to drive a car like that?” But he heard me and laughed. “Binary options” – he said and went away.
Those two words changed my life forever. When I got home, I sat down at the computer and started looking for some mentions of binary options. And so, a month passed: during the day I would work at the car wash, and by night I would read dozens of forums to understand how to use binary options. I found the Olymp Trade web page and registered on there for free.
They let me open a demo account for $10,000 using virtual money, as well as providing free instructions. This helped me a lot in the beginning, when I still didn’t know how to work with binary options and I didn’t want to invest my own money.
On the Olymp Trade web page, all the calculations are done in US dollars I received the payments in US dollars as well. After two or three weeks, there was $10,000 in my account. The only problem was that this was only some algorithms on the screen, I couldn’t actually withdraw any cash.
That was when I decided to invest $100 in my account. I don’t trust some of the Internet web pages, so I didn’t want to risk too much. That night I didn’t sleep much – I traded all night, then I went to work. And guess what? That night I earned $153! All day at work, all I could think of was binary options. As soon as I got back home, I sat down at the computer, but tiredness got the better of me. That night I didn’t trade much – I earned just $33 and went to sleep. I remember those days well, the only thing that mattered to me was binary options – I would arrive home and start trading right away. After a week, my account had $1220 in it!!!
I know, it’s not a huge amount, but this was only the beginning; I didn’t dare trade using large sums of money. I thought I’d better checkout the web page, so I sent a transfer of all my money ($1220) to a card. An hour later, I received a telephone message saying that the money was in my card! I was happy.
After that, I invested $500 in my account and started dealing more boldly. After two weeks I had earned $10,000, and within a month I had left work. After that, I paid of all my debts and for the first time in my life, I took a vacation with my family to rest. This didn’t stop me trading though, because to earn money, all I needed was a laptop, or a mobile phone with Internet access.
When we returned home, I bought myself BENTLEY and decided to write this blog just for you – workers like I was, who are fed up of working every day from morning until night, for a measly wage.
Remember that life wasn’t given to us for that. Register now, and be sure to complete the instruction course in the demo account without risking losing real money. Nowadays, I don’t see any real way to earn money while sitting at the computer or telephone, except binary options. After buying the BENTLEY, there was still $27,183 left over in my account. My goal was to earn $300,000 by the summer and buy a house for my beloved family.
Good luck everyone, and thank you for your attention.
submitted by makes-me-wonder to copypasta [link] [comments]

Wine 5.9 Released

The Wine development release 5.9 is now available.
 
https://www.winehq.org/announce/5.9 
 
What's new in this release (see below for details):
 
- Major progress on the WineD3D Vulkan backend. - Initial support for splitting dlls into PE and Unix parts. - Support for generating PDB files when building PE dlls. - Timestamp updates in the Kernel User Shared Data. - Various bug fixes. 
 
The source is available from the following locations:
http://dl.winehq.org/wine/source/5.x/wine-5.9.tar.xz http://mirrors.ibiblio.org/wine/source/5.x/wine-5.9.tar.xz 
 
Binary packages for various distributions will be available from:
http://www.winehq.org/download 
 
You will find documentation on
http://www.winehq.org/documentation 
 
You can also get the current source directly from the git repository.
Check
http://www.winehq.org/git for details. 
 
Wine is available thanks to the work of many people.
See the file AUTHORS in the distribution for the complete list.
 
 
Bugs fixed in 5.9 (total 28):
 
15489 Build should optionally produce .pdb file suitable for use with symbol server 29168 Multiple games and applications need realtime updates to KSYSTEM_TIME members in KUSER_SHARED_DATA (Star Wars: The Old Republic game client, Blizzard games, GO 1.4+ runtime, Denuvo Anti-Tamper x64 #2) 29806 Hype The Time Quest: DirectX Media (DXM) v6.0 runtime installer fails (advpack.ExecuteCab should extract the INF from CAB before running the install part) 30814 Age of Empires II scrolling gets stuck after Alt-Tab away and back 42125 4k/8k demos often fail with 'Bad EXE Format' or 'error c0000020' due to Crinkler executable file compressor's "optimized" usage of PE header fields (loader compatibility) 43959 webservices/reader tests fail on arm 43960 rpcrt4/cstub tests fail on arm 43962 msvcrt/string tests fail on arm 44860 4k/8k demos crash due to Crinkler executable file compressor expecting PEB address in %ebx on process entry 48186 every wine process shows a definite leak in dlls/ntdll/env.c 48289 Grand Theft Auto 5 crashes after loading (GTA5 expects Vista+ PEB_LDR_DATA structure fields) 48441 mouse coordinates cannot exceed initial desktop size during startup of wineserver 48471 Mismatching behavior of GetEnvironmentVariableW for empty / long values 48490 Restored minimized windows have wrong height 48775 Microsoft Teams 1.3.x crashes on unimplemented function IPHLPAPI.DLL.NotifyRouteChange2 49105 Deus Ex GOTY fails to start with Direct3D renderer 49115 Hitman (2016) and Hitman 2 (2018) fail to launch in DX11 mode 49128 Good Company crash on launch 49130 NVIDIA RTX Voice installer crashes on unimplemented function setupapi.dll.SetupDiGetActualSectionToInstallExW 49131 wineboot fails to start 49139 Regression: Wine crashes on startup on FreeBSD >= 5.7 49140 Windows 10 SDK installer hangs on startup 49142 Horizontal mouse scroll events (X11 buttons 6 and 7) should not be translated to back/forward events 49146 Hearts of Iron IV needs api-ms-win-crt-private-l1-1- 0.dll._o_sin 49173 widl generates invalid code for Gecko's ISimpleDOM.idl 49175 Duplicated checking canonicalized inside kernelbase/path.c 49200 Steam hangs after login 49203 Possible incorrect usage >= instead <= in shlview.c 
submitted by catulirdit to linux_gaming [link] [comments]

vfxAlert - Signals for binary options

vfxAlert - Signals for binary options
vfxAlert it's a tool for a binary options traders which they will use in their own trading strategies. Using vfxAlert assumes that the users are conversant in the essential principles of the forex market. and that they understand the principles of technical analysis and statistical methods. There are two main ways the way to use vfxAlert:
Create a trading strategy supported signals of vfxAlert. Using adaptive algorithm for confirmation signals of existing trading strategy. Especially For Beginners Most of you think that binary options it's easy, that's absolutely wrong. Please feel the difference between easy to trade and simply earn money. Binary options are easy to trade - that's true...
But successful trading requires discipline and strict compliance with the principles of the trading strategy.
It's are going to be very difficult to know what exactly vfxAlert propose and the way to use of these statistical data. Our recommendation is to use free signals within the free version and learn technical analysis and statistical principles.
Trade 2 hours per day less . Trade at an equivalent time a day . Trade long-term signals. (Min. 5 min expiration time) Learn about assets what you getting to trade. How price moves in several trading sessions. See how trend influence on signals profitable. See how heatmaps&power influence on signals profitable. Analyse your trading statistics. Trade on demo-account. After one month you'll feel the market and possible you'll be ready to create your first trading strategy.
Signals for binary options, Best binary options signals, Free Binary Options Signals, Binary Options Signals, binary signals, binary options signals software
!Important: Signals aren't a recommendation for action. Signals are the results of marketing research on a specific algorithm, a trader has got to understand how signals are formed, and what's current market tendencies to form the proper decision.

Signals for binary options
!Important: vfxAlert don't offer trading strategies. vfxAlert offer signals and real-time statistics counting on current indicators values. See below:
The trading strategy may be a system of rules, on the idea of which the trader makes his own decisions. Such a system is made only on the idea of individual trading experience, gleaned knowledge and purchased skills. The strategy allows a deep understanding of the structure of the market and therefore the mechanisms of its operation, therefore, the exchange player makes decisions supported the present situation. On the idea of a private strategy, a trader can develop several trading systems and use them counting on market conditions. The strategy always takes under consideration fundamental factors, statistical data, also because the basic postulates of risk and money management.
submitted by vfxAlert3 to u/vfxAlert3 [link] [comments]

Summary of Tau-Chain Monthly Video Update - August 2020

Transcript of the Tau-Chain & Agoras Monthly Video Update – August 2020
Karim:
Major event of this past month: Release of the Whitepaper. Encourages everyone to read the Whitepaper because it’s going to guide our development efforts for the foreseeable future. Development is proceeding well on two major fronts: 1. Agoras Live website: Features are being added to it, only two major features are missing 2. TML: We identified ten major tasks to be completed before the next release. Three of them are optimization features which are very important for the speed and performance features of TML. In terms of time requirements, we feel very good to stay on schedule for the end of this year. We also are bringing in two extra resources to help us get there as soon as possible.
Umar:
Been working on changes in the string relation, especially moving from binary string representation to unistring. The idea is that now rather than having two arguments in the term, you would have a single argument for the string. Thus, the hierarchy changes from two to one and that has an effect on speed and on the storage. So the first few numbers that we calculated showed that we are around 10% faster than with the binary string. There are some other changes that need to be made with regards to the string which he is working on.
Tomas:
Had to revise how we encode characters in order to be compatible with the internet. It also was the last missing piece in order to compute persistence. The reason is that the stored data has to be portable and if TML needs characters and strings internally in the same encoding as it stores its own data, we can map strings directly into files and gain lots of speed with it. The code is now pushed in the repository and can be tested. He’s also working on a TML tutorial and likely before next update, there should be something available online.
Kilian:
Transcribed past month’s video update. You can find it on Reddit. Also, he has done more outreach towards potential partner universities and research groups and this month the response rate was better than earlier, most likely because of the whitepaper release. Positive replies include: University of Mannheim, Trier (Computational Linguistics & Digital Humanities), research group AI KR from within the W3C (https://www.w3.org/community/aik) articulated strong interest in getting a discussion going, particularly because they had some misconceptions about blockchain. They would like to have a Q&A session with a couple of their group members but first it’s important for us to have them read the whitepaper to get a basic understanding and then be able to ask respective questions. Other interested parties include the Computational Linguistics research group of the University of Groningen, Netherlands and also the Center for Language Technology of the University of Gothenburg, Sweden. We also got connected to the Chalmers University of Technology, Sweden. Also has done some press outreach in combination with the whitepaper, trying to get respective media outlets to cover our project, but so far hasn’t gotten feedback back. Been discussing the social media strategy with Ohad and Fola, trying to be more active on our channels and have a weekly posting schedule on Twitter including non-technical and technical contests that engage with all parts of our community. Furthermore, has opened up a discussion on Discord (https://discord.gg/qZtJs78) in the “Tau-Discussion” channel around the topics that Ohad mentioned he would first like to see discussed on Tau (see https://youtu.be/O4SFxq_3ask?t=2225):
  1. Definitions of what good and bad means and what better and worse means.
  2. The governance model over Tau.
  3. The specification of Tau itself and how to make it grow and evolve even more to suit wider audiences. The whole point of Tau is people collaborating in order to define Tau itself and to improve it over time, so it will improve up to infinity. This is the main thing, especially initially, that the Tau developers (or rather users) advance the platform more and more.
If you are interested in participating in the discussion, join our Discord (https://discord.gg/qZtJs78) and post your thoughts – we’d appreciate it! Also has finished designing the bounty claiming process, so people that worked on a bounty now can claim their reward by filling out the bounty claiming form (https://forms.gle/HvksdaavuJbu4PCV8). Been also working on revamping the original post in the Bitcointalk-Thread. It contains a lot of broken links and generally is outdated, so he’s using the whitepaper to give it a complete overhaul. With the whitepaper release, the community also got a lot more active which was great to see and thus, he dedicated more time towards supporting the community.
Mo’az:
Finished multiple milestones with regards to the Agoras Live website: 1. Question part where people post their requests and knowledge providers can help them with missing knowledge. 2. Have been through multiple iterations of how to approach the services in the website. How the service seeker can discover new people through the website. 3. Connected the limited, static categories on the website to add more diversity to it. By adding tags, it will be easier for service seekers to find what they are looking for. 4. Onboarding: Been working on adding an onboarding step for the user, so the user chooses categories of his interest and as a result, he will find the homepage to be more personalized towards him and his interests. 5. New section to the user profile added: The service that the knowledge provider can provide. Can be added as tags or free text. 6. Search: Can filter via free text and filter by country, language, etc. 7. Been working on how to display the knowledge providers on the platform.
Andrei:
Improved look of the Agoras Live front page: Looks more clean. Finetuned search options. Redesigned the header. It now has notification icons. If you query a knowledge provider for an appointment, he will receive a notification about the new appointment to be approved or rejected. You can also add a user to your favorites. Front page now randomly displays users. Also implemented email templates, e.g. a thank you email upon registration or an appointment reminder. What is left to do is the session list and then the basic engine will be ready. Also needs to implement the “questions” section.
Juan:
Has switched towards development of TML related features. Been working mainly on the first order logic support. Has integrated the formula parser with the TML core functionality. With this being connected, we added to TML quantified Boolean function solving capability in the same way as we get the first order logic support. It’s worth mentioning that this feature is being supported by means of the main optimized BDD primitives that we already have in the TML engine. Looking forward to make this scalable in terms of formula sizes. It’s a matter of refining the Boolean solution and doing proper tests to show this milestone to the community in a proper way.
Fola:
Have been discussing the feasibility of a token swap towards ERC20 from the Omni token with exchanges and internally with the team. Also has been discussing the social media strategy with Kilian. As we update with the new visual identity and the branding, it’s a good time to boost our social media channels and look ready for the next iteration of our look and feel. Continuing on the aspects of our visual identity and design, he’s been talking to quite a number of large agencies who have been involved in some of the larger projects in the software space. One being Phantom (https://phantom.land) who designed the DeepMind website (https://deepmind.com), the other one being Outcast (https://theoutcastagency.com) who have been working with Intel and SalesForce. We aren’t sure yet with which company we go but it’s been good to get insight into how they work and which steps they’d take into getting our project out to the wider audience. That whole process has been a lot of research into what kind of agencies we’d want to get involved with. Also, with the release of the whitepaper being such a big milestone in the history of the company, he’s been doing a lot of reading of that paper. We’re also looking to get more manpower involved with the TML website. Also going to hire a frontend developer for the website and the backend will be done according to Ohad’s requirements. Also, as a response of the community’s feedback towards the Omni deck not being user friendly, he did some outreach to the Omni team and introduced them to a partner exchange for Agoras Live. They have an “exchange-in-a-box” service which may help Omni to have a much more usable interface for the Omni Dex, so hopefully they will be working together to improve the usability of the Omni Dex.
Ohad:
Finished writing the community draft of the whitepaper. The final version will contain changes according to the community’s feedback and more elaboration on more topics that weren’t inserted in the current paper, including logics for law and about the full process of Tau. And, as usual, he’s been doing more research of second order logic, specifically, Boolean options and also analyzing the situation where the formulas in conjunctive normal form trying to extract some information from such a cnf. Also, what Juan mentioned about first order logic: People who are already familiar with TML will see that now with this change, the easiness of using TML got much more advanced. In first order formulas, expressing yourself has become much easier than before.
Q&A:
Q: What is the difference between Horn Second Order Logic and Krom Second Order Logic?
A: Horn and Krom are special cases of cnf (conjunctive normal form). Conjunctive normal form means the formula has the form of n conjunction between clauses. This clause and this clause while each clause is a disjunction of atoms: It’s this or this or this or that. And now any formula can be written in conjunctive form. Any formula can be brought to this form. Krom is the case where each clause contains exactly two atoms and Horn is the case where at most one atom in every clause is positive – thre rest are negated, that’s the definition.
Q: Now that the whitepaper has been released, how do you think it will affect the work of the developers?
A: We see the whitepaper as being a roadmap of development for us, so it will essentially be the vision that we are working to implement. Of course, we have to turn it into much more specific tasks, but as you saw from the detailed progress from last month, that’s exactly what we do.
Q: When can we expect the new website?
A: We’ve just updated the website with the whitepaper and the new website should be launching after we get the branding done. There’s a lot of work to be done and a lot of considerations taking place. We have to get the graphics ready and the front end done. The branding is the most important step we have to get done and once that is complete, we will launch the new website.
Q: What needs to be resolved next before we get onto a solid US exchange?
A: With the whitepaper released, that’s probably been the biggest hurdle we had to get over. At this point, we still have to confirm some elements of the plan with the US regulators and we do need to have some sort of product available. Be that the TML release or Agoras Live, there needs to be something out for people to use. So, in conjunction with the whitepaper and approval from the US regulators, we need to have a product available to get onto US exchanges.
Q: Does the team still need to get bigger to reach cruising speed, if so, how much by and in which areas?
A: Of course, any development team would like to have as many resources as possible but working with the resources we that have right now, we are making significant progress towards the two development goals that we have, both the Agoras Live website and the TML engine. But we are bringing in at least two more resources in the near future but there’s no lack of work to be done and also there’s no lack of progress.
Q: Will Prof. Carmi continue to work in the team and if so, in what capacity?
A: Sure, Prof. Carmi will continue coordinating with us. Right now, he’s working on the mathematics of certain features in the derivatives market that Agoras is planned to have, and also ongoing research in relevant logic.
Q: Will you translate the whitepaper into other languages?
A: Yes, we expect translations of the whitepaper to occur. The most important languages that comprise our community, e.g. Chinese. What languages exactly, we cannot tell right now, but mainly the most prominent languages that comprise our community.
Q: Is the roadmap on the website still correct and, when will we move to the next step?
A: We will be revamping the website soon including the roadmap that will be a summary of what’s been published in the whitepaper but the old version of the roadmap on the website is no longer up-to-date.
Q: What are the requirements for Agoras to have its own chain?
A: If the question means why Agoras doesn’t have its own chain right now, well there is no special reason. We need to reach there and we will reach there.
Q: When Agoras switches to its own chain, will you need to create a new payments system from scratch?
A: No, we won’t have to. We will have to integrate with the new payment channel but that’s something we are planning to do anyway. We will be integrating with several exchanges and several payment channels so it won’t be a huge task. Most of the heavy lifting is in the wallet and key management which will be done on the client side but we’re already planning on having more than one payment gateway anyway so having one more is no problem.
Q: When can we see Tau work with a real practical example?
A: For examples of applications of TML, we are currently working on a TML tutorial and a set of demos. Two of our developers are currently working on it and it’s going to be a big part of our next release.
Q: How can we make speaking in formal languages easier, with an example?
A: Coming up with a usable and convenient formal language is a big task which maybe it’s even safe to say no one achieved up until today. But we solve this problem indirectly yet completely by not coming up with any language but letting languages to be created and evolve over time through the internet of languages. We don’t have any solution of how to make formal languages very easy for everyone. It will be a collaborative effort over Tau together to reach there over time. You can see in the whitepaper in the section 4.2 about “The Critical Mass and the Tau Chain Reaction”.
Q: What are the biggest limitations of Tau and, are they solvable?
A: TML cannot do everything that requires more than polynomial space to be done and there are infinitely many things like this. For example, you can look up x time or x space complete problems. We would want to say elementary but there is no elementary complete problem but there are complete problems in each of the levels of elementary. All those, TML cannot do because this is above polynomial space. Another drawback of TML which comes from the usage of BDDs is arithmetic. In particular, multiplication. Multiplication is highly inefficient in TML because of the nature of BDDs and of course BDDs bring so many more good things that even this drawback of slow multiplication is small compared to all the possibilities that this gives us. Another limitation, which we will emphasize in the next version of the whitepaper, is the satisfiability problem. The satisfiability problem of a formula without a model to ask whether a model exists – not a model checking like right now but to ask whether a model exists – this is undecidable already on very restricted classes as follows from Trakhtenbrot’s theory. So in particular, the containment problem, the scalability problem, the validity problem, they all are undecidable in TML as is and for them to be decidable, we need to restrict even more the expressive power and look at narrower fragments of the language. But again, this will be more emphasized in the next version of the whitepaper.
Q: It looks years for projects such as Maidsafe to build something mediocre, why should Agoras be able to do similar or better in less time?
A: Early on in the life of the Tau project, we’ve identified the computational resources marketplace as one of the possible applications of Tau, so it is very much on our roadmap. However, as you mentioned, there are some other projects, e.g. Filecoin, which is specifically focusing on the problem of storage. So even though it’s on our roadmap, we’re not there yet but we are watching closely what our competitors in this field are doing. While they haven’t yet delivered on their promise of an open and distributed storage network, we feel that at some point we will have more value to bring to the project. So distributed storage is on our roadmap but it’s not a priority for us right now but eventually we’ll get there.
Q: What are the requirements in scalability, e.g. permanent storage etc.?
A: We haven’t answered that question yet.
Q: Will Tau be able to run on a mobile phone?
A: Definitely, Yes. We’re planning on being available on all computational platforms, be it a server, laptop, phone or an iPad type of device.
Q: Given a vast trove of knowledge, how can Tau determine relevance? Can it also build defenses against spam attacks and garbage data?
A: Tau doesn’t offer any predetermined solution to this. It is basically all up to the user. The user will have to define what’s criminal and what’s not. Of course, most users will not bother with defining this but they will be able to automatically agree to people who already defined it and by that import their definitions. So bottom line: It’s really up to the users.
Q: What are your top priorities for the next three months?
A: Our goal for this year (2020) is to release a first version of Agoras Live and of TML.
Q: Ohad mentioned the following at the start of the year: Time for us to work on Agoras. We need to create the Agoras team and commence work. We made a major improvement in one of Agoras’ aspects in the form of theatrical breakthrough but we’re not ready yet to share the details publicly. Is there any further news or progress with the development of Agoras?
A: If the question is whether there has been more progress in the development of Agoras, specifically with regards to new discoveries for the derivatives market, then the answer is of course yes. Professor Carmi is now working on those inventions related to the derivatives market. We still keep them secret and of course, with Agoras Live, knowledge sharing for money is coming.
submitted by m4nki to tauchain [link] [comments]

UNFLoader - A universal N64 flashcart ROM uploader and USB+debug library

Presenting the Universal N64 Flashcart Loader™️ (UNFLoader for short)!
This is more than just an executable that lets you upload ROMs regardless of flashcart, it is also a debugging tool and library. The included usb.c + usb.h allows you to communicate from the N64 to your PC. With it, you can printf stuff to your command prompt or dump binaries (like screenshots), facilitated by the use of debug.c + debug.h. The debug library should be rather easy to extend as I've tried to write it in a way that the programmer needn't worry about what flashcart they're communicating with, thanks to the USB library.
Since I'm going on vacation this weekend, I've gone ahead and decided to release it with only USB writing implemented (I wanna also implement USB reading so that you can send stuff from the PC to the N64 in realtime). Feel free to try it out and find problems while I'm gone!
In case you've not used GitHub before, the executable for UNFLoader can be downloaded from the releases page on the repository. I've also provided an example ROM's source that uses the library, with another one coming tomorrow. Thank you to CrashOveride for reviewing the code to ensure it's compatible with his Linux toolchain. And of course, thank you to everyone who has helped test this tool so far, it wouldn't have been possible without you guys!
https://github.com/buu342/N64-UNFLoader
If anyone makes extensions to the tool or library, go ahead and fork so I can merge later. The program is currently Windows only but should be a relatively simple port to Linux as I've avoided using fancy OS specific stuff. Once I get to trying to build this on Linux, I'll make some #if macros to allow for easier multi-platform compiling. The N64 side of the code is libultra only since I don't have experience with the other toolchains, but hopefully it's documented enough to be easy to port. Sorry!
The debug library also comes with some basic exception detection for threads, should you ever crash one. It'll print the standard stuff that you see in most commercial games (which are just using SGI's fault demo from the ultra folder) to your console. It would be fantastic if it could be expanded to also allow more debbuger-like stuff such as breakpoints (gdb), but that is a little bit outside my area of expertise... I'd also be interested in implementing jsdf's ed64log functionalities for this, but I'll need to take a better look at his repository. It'd really be awesome if the community added onto this though. We're a niche community that's fractured by a lot of options (multiple SDKs, multiple flashcarts, etc...) with no standardization, so the more we can build on collaboratively, the better for everyone!
submitted by buu342 to N64Homebrew [link] [comments]

Immediate Edge Review, Is Immediate Edge SCAM Or Legit Trading App?

Immediate Edge Review, Is Immediate Edge SCAM Or Legit Trading App?

Immediate Edge Review: Is This Crypto Robot Legit or Scam
Immediate Edge Review and investigation 20twenty. The Immediate Edge app is a crypto, forex and choices trading robot utilized by folks to automatically obtain and sell Bitcoin and create profits. Wanting at the website, many people claim it helped them move from rags-to-riches trading Bitcoin. Further, some claims linked it to Ronaldo and Sir Alex Ferguson

https://preview.redd.it/rttn3i4hohm51.jpg?width=1280&format=pjpg&auto=webp&s=8f0dc345c3ace4032d571d44fabe356f13ff1a33
Is Immediate Edge app legit or scam? Whereas the claims of its linkage to the higher than celebrities are unverifiable, we tend to can verify that the app is not a scam and permits individuals to trade Bitcoin using the Fibonacci strategy with ten minutes time frames
The app, that allows people to deposit at least $250 through mastercard and Sofort, scores 88% rate and a 5 stars as a real software
Since there are several scam cryptos, forex and options brokers who trick individuals to depositing money, and then they run away with the funds, we have taken time to review this software to determine if it is real or a scam.
Is Immediate Edge scam or legit
High success rate is reported by users with this software.
The Immediate Edge web site provides truthful claims about the service though it will not mean the crypto trading risks are eliminated with its use.
Customers should start with the minimum investment and increase it when satisfied with the utilization of the app.
Click the link to access Immediate Edge official web site or keep reading to understand more
This software will not seem to be a scam and users report that it helped them make real money trading on it.b site
What is Immediate Edge App?
Immediate Edgecould be a robot or auto-trading software that allows folks to trade forex, crypto and binary choices. A user deploys the algorithm-primarily based bot, which relies on a trading strategy that's automatically executed on a broker trading platform once deployed.
The strategy is coded or set like to permit the user to automatically get and sell crypto, stock or choices on the broker platform at favorable prices, to form profits. It can do automatic market analysis by analyzing a vast amount of knowledge from completely different sources, at intervals seconds and with high accuracy, then use the data to predict the costs. It can then come up with a transparent buy or sell tradable signal and then execute it automatically by shopping for and/or selling on the broker platform.
The software can, therefore, save a trader thousands of manual hours and labor they might have spent analyzing information to form trading choices and to follow the markets and to position and close trades. You conjointly do not want to understand anything concerning crypto, stock or option trading to use this auto trading app, although it is suggested to possess this information to keep improving on trading.
Trading bots will achieve high success rates of more than 90p.c and have been tested to work. You may be searching for Immediate Edge scam but the website can tell you that you can expect to earn between $950 and $a pair of,two hundred per day using the software but that depends on your expertise. As a newbie, you'll not start making that a lot of immediately and conjointly it depends on how a lot of you invest. With an investment of $250, you'll be able to expect to form a lot of lesser although some people claim to own made $12a pair of in a very few hours using this software.
That will not mean Immediate Edge is error-free. There still is a heap of unpredictable high volatility in crypto and bots will make mistakes and errors to create losses. Auto trading robots are better employed in combination with manual trading strategies.

https://preview.redd.it/1zkt9v3johm51.jpg?width=1280&format=pjpg&auto=webp&s=85f7e7f5d0e9d6b60b4a8a6e37bb344dbbb8305c
Immediate Edge Review
How will Immediate Edge work?
All a user has to try and do is join up at the Immediate Edge web site, then deposit funds to have access to the robot, when which they can begin trading by switching on the bot. It will would like no control or intervention from humans, beyond beginning and stopping it.
You additionally need to stay checking, daily, to observe the performance of the software in doing its job and ensure that it is earning any returns needless to say. From there, you can confirm whether or not to extend or decrease your investment towards crypto, options or stock trading using this robot.
You'll be able to also monitor performance to be ready to regulate the trading settings from your dashboard and optimize totally different features of the trading bot for instance set amount of trades or amount to invest in every trade.
Founder of Immediate Edge
In line with the Immediate Edge website, this trading bot was founded by Edwin James. Reportedly, he created billions with forex, crypto, and binary options trading and still shares his strategies on the way to trade the assets on the app.
He founded the app to create it potential for brand spanking new traders to create cash in less than 3 minutes of signing up.
How to sign up on Immediate Edge:
Registration: Registering or signing up on the website is free but to start trading, you want to deposit no less than $250. You discover a registration type on the top right of the page, on that you type in your email, full names and phone numbers and country code. Create a password to be used for logging in later.
Deposit funds: Depositing funds allows you to connect to a robot broker and then you'll begin the bot to start out trading. You'll deposit with Visa, Wire Transfers, Klarna or Skrill. The currencies supported are Swiss Franc, British Pound, US Greenback, and Euro and using a credit or debit card limits deposits to less than $/£/€/?10,00zero in one day and $/£/€/?40,000 in an exceedingly month.
Immediate Edgeisn’t licensed to handle your funds, it works with brokers to handle the cash once it's deposited.
Demo trading: Relying on the broker you're connected to, you can begin to practice trading with the Immediate Edge software. Some brokers do not have this feature on their platforms. Still, with the latter, you can test their options before you deposit cash to try and do live trading. With the demo options, you'll be able to familiarize yourself with the trading house before beginning to use real money to trade.
Trading: Before and when you've got switched on auto-trading, you would like to check the trading settings daily. You'll regulate some things including stop-loss orders and when to try to to them, amount to speculate per trade and how several trades to try to to per day. You'll be able to also choose that cryptocurrencies to trade, and you'll be able to select all the most in style ones together with Bitcoin and Ethereum. You also get to observe the profits/losses and decide if to continue and/or when to prevent.

https://preview.redd.it/c9scw5fkohm51.jpg?width=1280&format=pjpg&auto=webp&s=3d127be2887c4c8960023a8cf1b1f55297dbf250
Withdrawals, user verification, cost of using the app and alternative options

The payouts or withdrawals are made by filling letter of invitation type on the funds’ management page and it can take two operating days to replicate in your checking account. No fee is charged on withdrawals. You'll withdraw your cash including the capital while not a lot of problem on this app, that is better than several that don't enable withdrawals at any time
While some bots need verifications by asking for your ID and statements, this one will not. You are done once uploading your payment details. The bot charges a commission on profit. Besides, you get twenty fouseven client support on Immediate Edge
Immediate Edge may be a legit, secure, user-friendly trading application for crypto, stocks, and choices. It has a zealous customer service and reports a high success rate. Another smart robot we have recently reviewed is Bitcoin Professional
We tend to hope that this review helped you to make a decision concerning this trading app. Additionally, subscribe to our web site to be invariably notified concerning new software from this industry. For live reviews subscribe to our Youtube Channel or FB Page.

https://www.immediateedge.org/
https://www.facebook.com/immediateedge/
https://www.pinterest.co.uk/immediateedge/
https://twitter.com/EdgeImmediate
https://www.instagram.com/immediateedge/
submitted by EggNecessary9499 to u/EggNecessary9499 [link] [comments]

MAME 0.222

MAME 0.222

MAME 0.222, the product of our May/June development cycle, is ready today, and it’s a very exciting release. There are lots of bug fixes, including some long-standing issues with classics like Bosconian and Gaplus, and missing pan/zoom effects in games on Seta hardware. Two more Nintendo LCD games are supported: the Panorama Screen version of Popeye, and the two-player Donkey Kong 3 Micro Vs. System. New versions of supported games include a review copy of DonPachi that allows the game to be paused for photography, and a version of the adult Qix game Gals Panic for the Taiwanese market.
Other advancements on the arcade side include audio circuitry emulation for 280-ZZZAP, and protection microcontroller emulation for Kick and Run and Captain Silver.
The GRiD Compass series were possibly the first rugged computers in the clamshell form factor, possibly best known for their use on NASA space shuttle missions in the 1980s. The initial model, the Compass 1101, is now usable in MAME. There are lots of improvements to the Tandy Color Computer drivers in this release, with better cartridge support being a theme. Acorn BBC series drivers now support Solidisk file system ROMs. Writing to IMD floppy images (popular for CP/M computers) is now supported, and a critical bug affecting writes to HFE disk images has been fixed. Software list additions include a collection of CDs for the SGI MIPS workstations.
There are several updates to Apple II emulation this month, including support for several accelerators, a new IWM floppy controller core, and support for using two memory cards simultaneously on the CFFA2. As usual, we’ve added the latest original software dumps and clean cracks to the software lists, including lots of educational titles.
Finally, the memory system has been optimised, yielding performance improvements in all emulated systems, you no longer need to avoid non-ASCII characters in paths when using the chdman tool, and jedutil supports more devices.
There were too many HyperScan RFID cards added to the software list to itemise them all here. You can read about all the updates in the whatsnew.txt file, or get the source and 64-bit Windows binary packages from the download page.

MAME Testers Bugs Fixed

New working machines

New working clones

Machines promoted to working

Clones promoted to working

New machines marked as NOT_WORKING

New clones marked as NOT_WORKING

New working software list additions

Software list items promoted to working

New NOT_WORKING software list additions

submitted by cuavas to MAME [link] [comments]

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