Today I experimented a bit with Dockerfile's.
Was quite surprised how far you could go with a spicy salsa of ARG, ENV, SHELL and multi stage builds.

But... For fucks sake....the debugging is like poking a light year long rod into a black hole, trying to fish something out of the event horizon....

In the end I got a nice setup for Java build's, version injectable with ENV/ARG, non root user and version specific behaviour.

As the debugging is non existing...

I filled up more than once my SSD....

It was an annoying brain damaged repetitive cycle of changing Dockerfile, pruning all images if docker build stopped because of missing free space, waiting for all stages to complete, start new.

And caching is a fragile thing that puzzles me .........

Guess more fishing tomorrow.

*Gives a happy deep throat to the beer bottle in hope of death*

Running Microsoft Visual studio and Android studio IDE simultaneously on an 8gb ram PC. It was an annoying experience until i "accidentally" clicked on Chrome... and my sorrows ended! Phewww.
Thank you Chrome.

Big win today. Set up a custom motion capture pipeline for Unity using my Vive/controllers today. Quote a bit of scripting but I went from nothing to complete animation reel for our character model in a single day.

Successful day for once. I can sleep well tonight.

C- let's See
C is a procedurally developed language follows sequential method of solving a problem.
Example
If a teacher of an Institute teaching various subjects, Maths, English, Science and History.
Case1.One student comes and asks teacher to teach English
and next student to teach Maths,
And the other to teach History.
Case2.Next students comes for English
Case3.Other one for History.

So what I understood regarding C is procedural language is
It completes first case1,next case2, and then case3. (Task after task)
Here English is taught 2 times seperate
And History too 2 times separately making time and process complexity.

C is a platform based high level language support only desired platform. If I program in windows with i3 processor , it runs only on the same OS and Processor, if code is run in other computers.
Single threaded, if a code is interrupted in between, stops there and doesn't allow other part of the code to run.

Java
In this if the same above cases encountered then and tell
Computer to create a Class of English and tell all the students to attend the class(time saving, No complexity and not repetitive)
Same way Creating History class and make all students attend the class at once.
Students may be the objects created.
Multi threaded language, if a task is interrupted following code cannot be stopped. Allows other part of thecode to run.

JVM- Java virtual machine allows Java code into signs that can be understood by computer. Where as C converts into binary code.

A class concept added to C language become C++

trying to rotate the character in Unreal Engine based on player input. It rotates around some sort of super weird point, so it looks like it's driving "backwards" while rotating, instead of rotating around the center of the mesh... sigh..
...
...
Solution: pass down the rotation value to the animation blueprint, rotate rootbone.
SUCK IT <.< See? it's not that hard, nor awkward. ffs.

If anyone feels down, depressed or lonely. Please let me know we can have a google meet call and talk about whatever. You are important and you shouldn't feel alone this season or any other day.

Have a taco

I used to do audits for private companies with a team. Most of them where black box audits and we were allowed to physically manipulate certain machines in and around the building, as long as we could get to them unnoticed.

Usually when doing such jobs, you get a contract signed by the CEO or the head of security stating that if you're caught, and your actions were within the scope of the audit, no legal action will be taken against you.

There was this one time a company hired us to test their badge system, and our main objective was to scrape the data on the smartcards with a skimmer on the scanner at the front of the building.

It's easy to get to as it's outside and almost everyone has to scan their card there in order to enter the building. They used ISO 7816 cards so we didn't even really need specified tools or hardware.

Now, we get assigned this task. Seems easy enough. We receive the "Stay-out-of-jail"-contract signed by the CEO for Company xyz. We head to the address stated on the contract, place the skimmer etc etc all good.

One of our team gets caught fetching the data from the skimmer a week later (it had to be physically removed). Turns out: wrong Building, wrong company. This was a kind of "building park" (don't really know how to say it in English) where all the buildings looked very similar. The only difference between them was the streetnumber, painted on them in big. They gave us the wrong address.

I still have nightmares about this from time to time. In the end, because the collected data was never used and we could somewhat justify our actions because we had that contract and we had the calls and mails with the CEO of xyz. It never came to a lawsuit. We were, and still are pretty sure though that the CEO of xyz himself was very interesed in the data of that other company and sent us out to the wrong building on purpose.
I don't really know what his plan after that would have been though. We don't just give the data to anyone. We show them how they can protect it better and then we erase everything. They don't actually get to see the data.

I quit doing audits some time ago. It's very stressful and I felt like I either had no spare time at all (when having an active assignment) or had nothing but spare time (when not on an assignment). The pay also wasn't that great.

But some people just really are polished turds.

I don't usually post memes, but this one is just a little too on the nose.

Hey everyone,

We have a few pieces of news we're very excited to share with everyone today. Apologies for the long post, but there's a lot to cover!

First, as some of you might have already seen, we just launched the "subscribed" tab in the devRant app on iOS and Android. This feature shows you a feed of the most recent rant posts, likes, and comments from all of the people you subscribe to. This activity feed is updated in real-time (although you have to manually refresh it right now), so you can quickly see the latest activity. Additionally, the feed also shows recommended users (based on your tastes) that you might want to subscribe to. We think both of these aspects of the feed will greatly improve the devRant content discovery experience.

This new feature leads directly into this next announcement. Tim (@trogus) and I just launched a public SaaS API service that powers the features above (and can power many more use-cases across recommendations and activity feeds, with more to come). The service is called Pipeless (https://pipeless.io) and it is currently live (beta), and we encourage everyone to check it out. All feedback is greatly appreciated. It is called Pipeless because it removes the need to create complicated pipelines to power features/algorithms, by instead utilizing the flexibility of graph databases.

Pipeless was born out of the years of experience Tim and I have had working on devRant and from the desire we've seen from the community to have more insight into our technology. One of my favorite (and earliest) devRant memories is from around when we launched, and we instantly had many questions from the community about what tech stack we were using. That interest is what encouraged us to create the "about" page in the app that gives an overview of what technologies we use for devRant.

Since launch, the biggest technology powering devRant has always been our graph database. It's been fun discussing that technology with many of you. Now, we're excited to bring this technology to everyone in the form of a very simple REST API that you can use to quickly build projects that include real-time recommendations and activity feeds. Tim and I are really looking forward to hopefully seeing members of the community make really cool and unique things with the API.

Pipeless has a free plan where you get 75,000 API calls/month and 75,000 items stored. We think this is a solid amount of calls/storage to test out and even build cool projects/features with the API. Additionally, as a thanks for continued support, for devRant++ subscribers who were subscribed before this announcement was posted, we will give some bonus calls/data storage. If you'd like that special bonus, you can just let me know in the comments (as long as your devRant email is the same as Pipeless account email) or feel free to email me (david@hexicallabs.com).

Lastly, and also related, we think Pipeless is going to help us fulfill one of the biggest pieces of feedback we’ve heard from the community. Now, it is going to be our goal to open source the various components of devRant. Although there’s been a few reasons stated in the past for why we haven’t done that, one of the biggest reasons was always the highly proprietary and complicated nature of our backend storage systems. But now, with Pipeless, it will allow us to start moving data there, and then everyone has access to the same system/technology that is powering the devRant backend. The first step for this transition was building the new “subscribed” feed completely on top of Pipeless. We will be following up with more details about this open sourcing effort soon, and we’re very excited for it and we think the community will be too.

Anyway, thank you for reading this and we are really looking forward to everyone’s feedback and seeing what members of the community create with the service. If you’re looking for a very simple way to get started, we have a full sample dataset (1 click to import!) with a tutorial that Tim put together (https://docs.pipeless.io/docs/...) and a full dev portal/documentation (https://docs.pipeless.io).

Let us know if you have any questions and thanks everyone!
- David & Tim (@dfox & @trogus)

Seems like even GitHub's CEO has now chimed in on the youtube-dl takedown! https://torrentfreak.com/riaas-yout...

A screenshot of him popping into the #youtube-dl IRC channel is posted here: https://twitter.com/t3rr4dice/...

So I guess this youtube-dl story may have a happy ending after all! Glad to have supported it and thanks to everyone who did the same :D

I am great at getting raspberry pi projects about 97% done...

But absolute shit at that last 3%.

Working on a home built WiFi repeater and deauther (front) and a 1TB SSD nextcloudpi server (back). Definitely outside my comfort zone, especially the first one. Despite having mad time on terminal, and SSH every day, I am very soft on this networking shit.

wpa_supplicant, though I do not now, I will come to understand your mysteries.

I really want to decouple classes from each other, but I also want to decouple them from any specific DI container, so this is what I came up with. Factory methods passed as arguments.
Is this bad? how would it be better done?

Oauth is unnecessarily complicated. No wonder so many implementations are vulnerable...

So recently I had an argument with gamers on memory required in a graphics card. The guy suggested 8GB model of.. idk I forgot the model of GPU already, some Nvidia crap.

I argued on that, well why does memory size matter so much? I know that it takes bandwidth to generate and store a frame, and I know how much size and bandwidth that is. It's a fairly simple calculation - you take your horizontal and vertical resolution (e.g. 2560x1080 which I'll go with for the rest of the rant) times the amount of subpixels (so red, green and blue) times the amount of bit depth (i.e. the amount of values you can set the subpixel/color brightness to, usually 8 bits i.e. 0-255).

The calculation would thus look like this.
2560*1080*3*8 = the resulting size in bits. You can omit the last 8 to get the size in bytes, but only for an 8-bit display.

The resulting number you get is exactly 8100 KiB or roughly 8MB to store a frame. There is no more to storing a frame than that. Your GPU renders the frame (might need some memory for that but not 1000x the amount of the frame itself, that's ridiculous), stores it into a memory area known as a framebuffer, for the display to eventually actually take it to put it on the screen.

Assuming that the refresh rate for the display is 60Hz, and that you didn't overbuild your graphics card to display a bazillion lost frames for that, you need to display 60 frames a second at 8MB each. Now that is significant. You need 8x60MB/s for that, which is 480MB/s. For higher framerate (that's hopefully coupled with a display capable of driving that) you need higher bandwidth, and for higher resolution and/or higher bit depth, you'd need more memory to fit your frame. But it's not a lot, certainly not 8GB of video memory.

Question time for gamers: suppose you run your fancy game from an iGPU in a laptop or whatever, with 8GB of memory in that system you're resorting to running off the filthy iGPU from. Are you actually using all that shared general-purpose RAM for frames and "there's more to it" juicy game data? Where does the rest of the operating system's memory fit in such a case? Ahhh.. yeah it doesn't. The iGPU magically doesn't use all that 8GB memory you've just told me that the dGPU totally needs.

I compared it to displaying regular frames, yes. After all that's what a game mostly is, a lot of potentially rapidly changing frames. I took the entire bandwidth and size of any unique frame into account, whereas the display of regular system tasks *could* potentially get away with less, since most of the frame is unchanging most of the time. I did not make that assumption. And rapidly changing frames is also why the bitrate on e.g. screen recordings matters so much. Lower bitrate means that you will be compromising quality in rapidly changing scenes. I've been bit by that before. For those cases it's better to have a huge source file recorded at a bitrate that allows for all these rapidly changing frames, then reduce the final size in post-processing.

I've even proven that driving a 2560x1080 display doesn't take oodles of memory because I actually set the timings for such a display in order for a Raspberry Pi to be able to drive it at that resolution. Conveniently the memory split for the overall system and the GPU respectively is also tunable, and the total shared memory is a relatively meager 1GB. I used to set it at 256MB because just like the aforementioned gamers, I thought that a display would require that much memory. After running into issues that were driver-related (seems like the VideoCore driver in Raspbian buster is kinda fuckulated atm, while it works fine in stretch) I ended up tweaking that a bit, to see what ended up working. 64MB memory to drive a 2560x1080 display? You got it! Because a single frame is only 8MB in size, and 64MB of video memory can easily fit that and a few spares just in case.

I must've sucked all that data out of my ass though, I've only seen people build GPU's out of discrete components and went down to the realms of manually setting display timings.

Interesting build log / documentary style video on building a GPU on your own: https://youtube.com/watch/...

Have fun!

I forgot to eat today, but I have boiled down the devRant theme system into just a few classes... and the "window" one is redundant-ish

Now that I can dynamically theme Qt widgets, my client will be able to support custom themes, confirmed!

Tip : play Eleni Karaindrou on shuffle while coding .
You'll get less bugs .

Bugs among us ...

Official Release of Wikipedia Bot is Here

How to Use: @wiki <Query>

Runs on cron job, every minute.

If there is literally no Wikipedia page for query, still gets a relevant result.

Demo in Comments.

My argument: Password change policies (every 3, 6 moths, etc.) are a detriment to security because users will either come up with simple, throw-away passwords (knowing they will need to change them soon anyways) or use the same password anyways with a few variations.

Discuss.

Having remote meetings home means that I just have clothes on the upper part.

I updated the UI as I said last time

prettywordcloud.github.io

Found out word cloud essentially is NP hard problem, so can’t do it in an efficient way.

However, now it is more interactive, and gives the illusion it is faster

Another project done in 3 days

https://txstc55.github.io/image-wor...

Generates word cloud based on image and text file user given, the default is Lincoln and his speeches.

Doesn’t work on phones, please view it on desktop/laptop

My god I’m a fucking legend

I am on a mission to go thru all the of bibliographies of all the books I have, and create a checklist of the books I have and don’t have, and continue to buy all the books in that list, add to the list for each new book I buy that references another book. UNTIL! The day I have a closed loop reference. to essentially “in this room all the books that each book references may also be found in this room, if the book isn’t in this room no other book references it.”

Most painful code error you've made?

More than I probably care to count.

One in particular where I was asked to integrate our code and converted the wrong value..ex

The correct code was supposed to be ...

var serviceBusMessage = new Message() {ID = dto.InvoiceId ...}

but I wrote ..

var serviceBusMessage = new Message() {ID = dto.OrderId ...}

At the time of the message bus event, the dto.OrderId is zero (it's set after a successful credit card transaction in another process)

Because of a 'true up' job that occurs at EOD, the issue went unnoticed for weeks. One day the credit card system went down and thousands of invoices needed to be re-processed, but seemed to be 'stuck', and 'John' was tasked to investigate, found the issue, and traced back to the code changes.

John: "There is a bug in the event bus, looks like you used the wrong key and all the keys are zero."
Me: "Oh crap, I made that change weeks ago. No one noticed?"
John: "Nah, its not a big deal. The true-up job cleans up anything we missed and in the rare event the credit card system goes down, like now. No worries, I can fix the data and the code."
<about an hour later I'm called into a meeting>
Mgr1: "We're following up on the credit card outage earlier. You made the code changes that prevented the cards from reprocessing?"
Me: "Yes, it was my screw up."
Mgr1: "Why wasn't there a code review? It should have caught this mistake."
Mgr2: "All code that is deployed is reviewed. 'Tom' performed the review."
Mgr1: "Tom, why didn't you catch that mistake."
Tom: "I don't know, that code is over 5 years old written by someone else. I assumed it was correct."
Mgr1: "Aren't there unit tests? Integration tests?"
Tom: "Oh yea, and passed them all. In the scenario, the original developers probably never thought the wrong ID would be passed."
Mgr1: "What are you going to do so this never happens again?"
Tom: "Its an easy addition to the tests. Should only take 5 minutes."
Mgr1: "No, what are *you* going to do so this never happens again?"
Me: "It was my mistake, I need to do a better job in paying attention. I knew what value was supposed to passed, but I screwed up."
Mgr2: "No harm no foul. We didn't lose any money and no customer was negativity affected. Credit card system may go down once, or twice a year? Nothing to lose sleep over. Thanks guys."

A week later Mgr1 fires Tom.

I feel/felt like a total d-bag.

Talking to 'John' later about it, turns out Tom's attention to detail and 'passion' was lacking in other areas. Understandable since he has 2 kids + one with special-needs, and in the middle of a divorce, taking most/all of his vacation+sick time (which 'Mgr1' dislikes people taking more than a few days off, that's another story) and 'Mgr1' didn't like Tom's lack of work ethic (felt he needed to leave his problems at home). The outage and the 'lack of due diligence' was the last straw.

haveibeenpwned: MASSIVE SECURITY BREACH AT COMPANY X, MILLIONS OF RECORDS EXPOSED AND SOLD, YOUR DATA IS AT RISK, please change your password!

Company X website: Hey your password expired! Please change it. Everything's fine, wanna buy premium? The sun is shining. Great day.

I've made a fun video transcribing one of the hot discussions on devRant: https://youtu.be/kL4TgNUS-9I
Please leave suggestions about what I should transcribe next in familiar format, also I wouldn't mind like and sharing! ;)

This is a continuation of my previous rant about admob being not very informative when it comes to invalid traffic and the resulting restriction in ad delivery.

I then wanted to use admob mediation to hang in facebook ads. My app is written with Xamarin.Forms.

So first I needed to make some facebook configuration - create an account, let my app review, create some ad placements and other shit. I came to the point where I had to put in a link to my privacy policy and the link could not be accepted due to some SSL fuckup -.-'

I then found out that there is an issue with my SSL Chain. With the help of whatsmychaincert.com I solved that issue. Little side note here: I have limited knowledge of that stuff and my cousin helped me set up my homepage so I had no idea what I was doing. Did a snapshot and luckily I did not needed that as everything worked :)
This took me around half an hour just so I can paste the fucking link to activate my app in facebook developer portal.

After that I made the whole mediation configuration shit - not an issue as google documented this quite well but it took some time.

Now comes the shitty part. To use admob mediation you need adapters to the other ad network. I found a nuget package with exactly what I needed just to find out that it is outdated. So I pulled the repo and saw that this thing is an aar binding library. Never did that stuff so I read some docs again. Updated the package and consumed it in my app.

The google docs then said "Use this mediation test shit to check if you did everything correct before going prod" - aar binding nr. 2 (but I am now familiar with that :P). This thing then told me that facebook ads could not be loaded because the SDK version is outdated -.-' SDK version comes from another nuget package which is referenced by the first aar thingie. I tracked that thing back to a repo where I found out that they are indeed totally behind. So I downloaded the aar, made a binding lib and bound that to my first aar binding lib as that depends on this.

Put that all back in my app - tested mediation and fucking finally after 6 hours everything comes together! all lights are green and things work.

Sorry if this is not quite a rant but it was quite a journey and I just had to share it.

Every time you squash a bug before someone else even sees it...

Lead: "There's a bug, you fix"
Me: "The PR for that has been waiting for your review since yesterday..."

!dev

Ive been looking for a hobby for years but nothing is interesting enough.. i lose interest within a few hours (besides cars but thats expensive so i only work on it very once in a while).

But now everything changed.. I was looking for something that keeps my mind busy but I was soooo bored those last months that I went fishing just to get outside..
turns out my new hobby is the opposite of what i was looking for.. fishing and completely turn off my brain.. its so calming to just be alone in the nature and do a very simple task, thowing out and pulling in with a chamce of catching a nice dinner.. try-catch basically..

assembled my first custom rod today, i kept in mind what i liked about certain rods and then put the best of each of them into my own rod..

if youre stressed and and introvert you should try it..

havent been that calm in years..

Long long time ago when recharge coupons we a thing, I used to try out more codes in the series and waste my time. After failing a lot over this, I started trying out different USSD codes to see what other stuff is out there. This got me to stumble upon facebook and twitter on USSD. I'm not sure now but, twitter was probably *515# from my carrier.

Facebook. I remember chatting for quite a long period using this. Very slow and limited yet, fun. The USSD message expires within ~60secs. so you have to type the chat message before that or you lose everything you typed. The phone was no smartphone that would allow me to copy the text from the USSD input. On top of that panic, was a character limit to these messages. I remember hitting send while being midway through a message just so I don't lose what I typed, on a T-9 keyboard. Still miss those!

The person on the other side would receive a half message due to this, and would start replying without any patience, to which I panicked as now there's a new thing to respond to, and a half message which I'm waiting to complete.

Later over the weekend when I was allowed to visit the cyber cafe for an hour or two with 15-30 INR, reading the chat threads, being able to use the five sticker packs:) and thus continuing on a computer was fun. But, as the time at the cafe expires, I had to immediately shut off my session or I'd be charged more. Thus, I was left in the middle of a conversation again, and had to continue over USSD.

Using social media without any internet like this was quite fun in a weird way. If I get a new message, I'd get a USSD alert, and then an sms if I didn't reply in some 10-15mins!

This had all the features like like and comment. Friend requests too. For the posts in a "timeline" which was new and fancy in those days, all you see is the caption of a post which also gets truncated quite a bit as USSD also has to show it's options like:
1. Like
2. Comment
3. Next Post
4. Main Menu

This was around '13 or '14 I guess. After which I later got my first computer- a laptop. Anyways, the tactile feel of pressing the buttons on a T-9 keypad is nostalgic to me. 😅 And if you were a pro at texting, u must hv used shrtcts lyk dis too w/ emojis lyk :-) <3