Hi.

I am curious to better understand how telemetry in apps like Instagram actually work.

I recently started playing the Binding Of Isaac and my Reels feed is suddenly full of Isaac content. I have never searched for Isaac content in the app, or previously engaged with creators that talk about the game. I am sure this something most people who use Meta apps can relate to, this is just my recent example that got me wondering about how the infrastructure of this functions.

• How did Meta's algorithm learn this about me?
• Is Google/Reedit/ISP sharing my browsing activity with Meta?
• Is Meta listening to me via my device microphone? (this is the common conspiracy, but I am not sure it's actually an efficient way to do this)
• Is Meta tracking my device activity even when I am not using Instagram? If so, how?

I did search Google for discussions, I've watched YouTube videos, and looked at Reddit posts about the game but never on Instagram or any Meta platform. I've had Instagram open while the game was playing in the background, and I've mentioned playing the game to my friend while we were on the phone and had Instagram open at the same time.

To be clear, am not complaining about this (that's a separate topic), I am sure I consented to this level of tracking when opening my account. I want to understand how apps like Instagram build telemetry to track users across different platforms, and from what sources are they likely taking from?

Thank you!

Hello everyone, I am a beginner in programming and coding and just recently started learning html and c language for web development. I would like to get into app development and build mobile apps but while searching for how to start, got confused by so many terms I have no idea about. The one thing I learned is I should start with javascript, so I had one question regarding that. Is javascript different for web development vs app development? The source I'm learning from is for web development, so would learning from there be considered learning wrong?

If you have any other tips I really really appreciate it. I have no idea what I'm doing but I essentially only have upto 6 months to either build a website and earn or app and earn due to some family issues.

I would be learning it side by side with web development as I learnt that for web development I would need mastery over quite a few languages before one of my websites can be enough to start producing some golden eggs or just eggs, meanwhile app development can be done using one language. Is that true?

Hey everyone! Is anyone working on a Spring Boot project and looking for a contributor? I'm learning Java backend development and would love to collaborate, contribute to a real project, and learn from other developers along the way.

I wanted to learn a high level language with a l C-like syntax, syntax with very little verbosity (but still C-like), with support for creating cross-platform graphical interface programs, and something that really doesn't require a lot of memory and low level knowledge.

I don't like C. it requires a lot of low-level knowledge. But I wanted a very similar syntax, but with more features and a language that is very popular so I have more opportunities.

i am thinking in golang, its a good choice for me and fits in my requirements?

I’m building a project that needs AI generation for video, images, and 3D models, plus a way to combine clips, voice, music, and subtitles into a final MP4. I’m looking for APIs with a usable free tier.

Which services have you used in practice, and what were the catches (credit limits, watermarks, rate limits)? Is it better to use one platform for everything or chain separate APIs? Any open-source models worth self-hosting as a fallback?

I've got a small public site where people can write into a shared page without signing up. No accounts on purpose. That also means I can't ban "a user," only a browser session or an IP range, and both of those are cheap to burn.

Right now I do the usual anonymous stuff: Cloudflare Turnstile on session mint, a short proof-of-work, a non-exportable device key in IndexedDB, rate limits, and a rotating refresh cookie. It slows down dumb scrapers. It does almost nothing against someone with residential proxies and a Turnstile solver farm.

Is there a durable approach here that isn't "add login"? Things I've seen tossed around:

- tighter per-/24 and IPv6 /64 device budgets

- behavioral signals (pointer rate, paste vs type) with a step-up challenge

- voiding votes from revoked devices at tally time

- Web Bot Auth for known agents (read-only)

What have you actually shipped on a no-account product that survived real abuse, not just load tests?

Site if it helps to see the shape of the problem: https://sharedpage.app

So, an example company for this questions is Netflix because the UI is important to them, and they have a lot of money so resources are less of an issue.

How difficult is it for someone like Netflix to make a settings/option for the UI of their main menu area as I describe below?

Netflix decides that they need to retain more customers and the UI is driving them away. They decide to make three distinct UI that caters to three different types of customers. These UI would be DISTINCT, and therefore not able to be just copy and pasted. Different colors and all somehow. One UI could be based solely around your preferences with no space dedicated to what's new or coming soon to Netflix. Another could be the exact opposite with little space dedicated to what you may like. A final UI could be some mix or some third option I can not think of. Is that somehow technically or financially difficult? Is it easy, only made difficult due to scale of user base?

Second, maybe harder question. What if Netflix did go this route of having three distinct looks, and then as they update each UI over time, users can go back and select from "older updates" for the three options they want. Therefore, over time, making a larger and larger list of options to chose from. Is this idea possible?

I am mostly asking because the idea that these companies have so much money but do not want to do more cool/creative/user friendly things is baffling to me sometimes...but maybe I am also super ignorant of something that makes my idea as reasonable as mining the sun at night.

I'm making a project in which I need a Some Api Please Tell me Ai names (freemium)

Api For video Genration

Image Genration Api

3D Model Api

Clips + voice + music + subtitles → final MP4 Api

3D animation And Rendering Api

I guess i just wanna rant a little since ive been building an open source project of mine for over a week now, done lots of researching, done some hard core debugging where u even dream of your bugs, and ive been seeing lots of progress already.. but then ive tried browsing in reddit and found out that something similar to my project already exist.. and not even an abandoned repository where theres a couple of commits but an active open source project w bunch of contributors.. i guess my fault for not browsing enough.. idk man just feel so dejected.. for u guys, what do u guys do after this?

Hi everyone!

I'm a CS student, or rather, I recently dropped out of university because I realized that I didn't really enjoy the amount of theory involved in the Italian university system. I'd prefer a more hands-on approach to learning programming.

Thanks to my previous education, I already have some experience with programming languages such as Go (Golang), Java, C, and SQL.

A while ago, I found freeCodeCamp and completed its Responsive Web Design certification. I learned HTML and some CSS, but I never finished the CSS section because, to be honest, freeCodeCamp's learning method started getting on my nerves a bit. I found it too guided and repetitive.

I'd rather learn the basics of a technology and then work on projects independently, with minimal guidance, instead of following step-by-step instructions.

I'm not particularly attached to any specific area of programming, so I'd like to explore as many fields as possible, including web development, app development, backend development, game development, machine learning, and anything else that might be interesting.

I'm mainly looking for free courses or learning resources, preferably with plenty of projects that I can work on independently. Certificates would be a nice bonus, but they're not a requirement.

What courses or resources would you recommend based on your own experience? I'd especially appreciate suggestions that helped you learn by actually building things and solving problems on your own.

Thanks in advance!

How do you decide when code duplication across different markets is actually worth eliminating?

I'm building a framework to automate complex business logic for incoming customer support emails. The system is currently being implemented for England, but it will eventually expand to Germany, the USA, India, and other markets.

The challenge is that many business rules are shared across markets, while others are market-specific.

For example: - Germany and the USA require checking whether a customer has logged in within the last 30 days. - England and India don't require this check. - Other parts of the email-processing workflow may be common across all markets, while some may differ.

My initial approach was to create a common interface with separate implementations for each market:

```java interface EmailHandler { void processEmail(); }

class EmailHandlerEngland implements EmailHandler { } class EmailHandlerGermany implements EmailHandler { } class EmailHandlerUSA implements EmailHandler { } class EmailHandlerIndia implements EmailHandler { } ```

However, I'm concerned that this could lead to significant code duplication as the framework grows.

On the other hand, suppose Germany and England currently have 100 lines of identical logic. Even if the logic is identical today, the business requirements for those countries may evolve independently. Sharing the implementation could introduce unintended coupling, where a change intended for one market affects another.

I am offcourse planning on building common "Helpers" and whatever can be configurable, will be configurable. However, we currently will only be getting requirements for one market, we can not tell from start if something that we will use, will be reused by other markets.

My question is: How do you approach this trade-off in practice?

• If I go with the initial approach, will these same line of code will actually be considered as a duplicate and will break the DRY principle?
• If Yes, would you consider identical code across markets to be duplication worth eliminating, even when the underlying business rules may evolve independently?
• Would you build a shared processing engine with market-specific configuration or strategies, or maintain separate implementations for each market?
• How do you decide which logic to abstract and share versus which logic to keep separate to preserve independence between markets?

I'm particularly interested in the reasoning behind these decisions and any real-world experience building systems with complex, evolving market-specific business rules.

Hi everyone! Is there a way to track document insertions, updates, and deletions in MongoDB if tracking wasn’t enabled beforehand?

Also, do QA and production typically use separate databases? If data is accidentally deleted in QA, can it be safely restored from production?

I have access to MongoDB Compass and urgently need advice on how to investigate changes and recover data safely. Thanks!

I want to create a system for a sports group to sign up for events with waiting list and notifications. But an added difficulty is that people should sign up per position (think a football team and the different positions, let's call them 1 to 11).

I know spond exists but it doesn't deal with waiting lists per position. Also, if someone doesn't reply to a spot when it becomes available it can block others from joining.

I'd like the easiest way to achieve this. At the moment doing it with whatsapp group and lists of people but you can imagine that gets very messy very quickly. Developping a whole app for this would be too complicated too so thinking something already pre-made that can be configured.

Options?

Been in the same job a long time and I find myself unemployed with a fairly undesirable skillset. I've been working with a legacy Java 8 code base and a JavaScript front end built with Oracle Jet (MVVM) a toolkit nobody else uses.

Clearly I need to freshen things up a bit but not sure what exactly is the best route. I'm probably going to give myself a crash course in modern Java and TypeScript but not sure which JavaScript framework would be easier to transition to and more importantly, worth my time?

Software engineer here who took a career turn into infrastructure and policy the last decade. The kids are getting older, so I have more mental space and energy for more than just tinkering on a pi kit project, bash scripts, using other peoples repos, you know, little to no actual coding.

Now I want to start back at it. Play a bit, then bite into a yet to be determined bigger project.

Experience mostly data-heavy fullstack webapp dev: java, oracle/mysql and spring/struts in the 2000s, then some python 2, django, mysql/postgres in early-mid 2010s.

Always running in our own datacenter. No cloud experience except a chunk of python notebook data analytics with dataframes and some elastic search stuff at the tail end.

Now, I got myself a new setup with 5070ti for gaming and this and sat down to install IDE... then the questions hit: which IDE? Which language? Which local LLM?

Ive used IntelliJ, Eclipse, PyCharm, but I should use VSCode, right? Typescript and python? Ollama?

Completely lacking confidence and looking for some advice. I am your clay, mould me!

Hi! I have been writing a compiler in Go and some guy is saying the codebase is awful. Any advice? And is there anything wrong with it?

https://github.com/khytryy/krabbascript

just out of curiosity is it possible to compare the power consumption of models like deepseek , gemma , gemini etc...

Hi, I'm not an experienced software developer at all, but I'm still asking this out of curiosity.

What's the best approach for software portability in many different machines, NOT just desktop computers? Whether I'm finalizing a video game, or just any software that has a GUI.

Should I use something like C/C++ or Rust, or will other compiled languages like Go or Nim also work well? And for VM languages like Java and C#, the machine would require the VM system to be installed so I assume VM languages would not be viable for portability.

Also, should I not use any third-party APIs, like SDL? Or will embedding APIs still work for a lot of machines?

For example, Doom was easily portable since it purely used C, and separated the core game code from the machine-specific implementations, right?

SuperTux also had a lot of ports, though it at least used SDL as another API. I wonder if it still was easily directly portable with barely any changes?

To sum it up, how much will third-party APIs matter when it comes to portability?

Aside from that, what other things should I consider in order to make programs easy to port?

As someone who has written software in some kind of capacity for decades now; I'm a bit curious how this influx of games and software AI-ported to PC from other platforms get around issues with things like window-management, DirectX vs Vulkan vs OpenGL, sound libraries, and all the other stuff that makes it hard to maintain good software. Like, it feels like there are some missing steps being glossed over. And if they are managing these issues that easily, how can that be better applied to "legit" software?

So I’ve learned Python and Django, although I’m still a beginner. I’ve also learned C++ through courses, and I’ve learned what algorithms and data structures are. Sometimes, I build small projects with the help of AI. It gives me the complete plan, and I follow it and write the code myself. If there’s an error, I ask AI to give me hints about where the problem is instead of fixing everything for me. I also try to solve problems on LeetCode every day.

So, my question is: Am I on the right path?

I feel like I’m stuck in a loop, and there’s something missing that I’m supposed to learn, but I don’t know what it is.

I’ve never done an internship or worked in programming before. I’ve also never read any books except one that I used to learn Python.

So, yes, I honestly don’t know what to do next. Are there any books I should read to become a better backend developer?

I was trying to figure out the low-level details of how Berkeley sockets can be used to start listening to connections on the server, and I couldn't help but think that the TCP model doesn't fit into the Berkeley model. For example, this is roughly how you create a socket in C for a single connection:

int fd = socket(...) bind(fd, ..., ...) listen(fd, ...) connfd = accept(fd, ...) read(connfd, buffer, buflen) write(connfd, data, datalen) close(connfd) Example taken from here: https://csperkins.org/teaching/2007-2008/networked-systems/lecture04.pdf

I stopped and thought, "why are we using two sockets here?" Well, one listens and the other can read and write. Sure, but don't you feel that these two do fundamentally different things? Like they shouldn't be both called "sockets", these are different entities. If you often use sockets, forget that for a moment, and just think of it from a design perspective.

I feel like the creators of the Berkeley socket API tried to make a very general model, which seems to work great with UDP and UNIX pipes but fails to apply neatly to TCP. If you think I'm missing something, please tell me.

I noticed that most block-based programming languages are just fancy interpreters or translators, and that most mainstream compiled programming languages are text-based. I am planning to make a bridge, aka. a desktop app that (similar to Scratch or TurboWarp) allows one to select, save, play, change parameters, see expected results with an interpreter, and download the final complied product of a folder, which contains images and text code (I'll expand in this further). No, I don't wish for sometihng that returns a wrapper of some Chromium nor a translation to another limited language; I wanna build a .exe with full control.

I'm planning for said code inside the folder to be something with the simplicity of Python, the prototypes and object logic of JavaScript, the power for application systems of C# and Java, the closeness to the machine of C, with a sprinkle of user-side and server-side compatibility and a LOAD of math functions and features. I'm not asking oyu to build it, but pointing out the qualities I want my monstruous programming language might help you critizice me (in the good and the bad sense).

The use case? Not sure, but someone will definetly build a virus that is remenicent of youdontknowwhoiam's troyan. To stop that, along with abuses of windows and colors and brightness and OS and file management (all which shall be possible) one could parse the program first through the desktop app and just limit the amount of windows or add a safeguard "Stop All" keybind. Other someone will probably abuse this feature to open inside and see the code of a program, but one can already do that if opened by a text editor and painstakingly translating each byte.

Due to my project's giant ambitions, I decided to ask y'all for advice, if any, to where could I begin. Only one thing's for sure: I'll make exporting functions easier so noone has to suffer the pain I have from studying Blockly's JS.

Lets say you created a new social media/forum/user based site and you want to prevent bots as much as you can, what would be your implementation do this while maintaining users privacy? not like current id verification they are trying to implement

So I was working on a project in Python, and I needed a library which had PyArrow and Panda as a dependency. And when I tried testing my app, first there was a Windows notification saying:
"Part of this app has been blocked, Some features of Python may not work because we can't confirm who published functoolz.cp312-win_amd64.pyd that the app tried to load", I think this is due to Smart App Control, which I don't really want to turn off because it will need me to reinstall Windows to turn it back on. I don't know how to fix it, here is the error message:
ImportError: The pyarrow installation is not built with support for 'dataset' (DLL load failed while importing _dataset: An Application Control policy has blocked this file.)

I am working with Parakeet TDT 0.6B V3, and it fails as soon as I try to load it. I am using a virtual environment called .venv312, because I am using Python 3.12 because Kokoro 82M doesn't support higher versions of Python.

Is there any ways to specifically allow this to bypass Smart App Control without disabling it entirely?

Thank you for your time!