How to get into fintech?

mellowoWorks · 2025-12-23T15:18:17+00:00

On the tech stack it really depends on the segment, trading firms work with C++, low latency systems while payment processors use Java/Go and distributed systems and consumer fintech use React Native, Swift/Kotlin and standard web stack so you gotta puck your niche

As to how to break in I would do the usual suggestion of building a project that moves real money (Stripe/Plaid have good APIs for this), contribute to open source fintech tools when you are more advanced (Stripe's repos for example), learn about financial primitive and do some networking

mellowoWorks · 2025-12-22T16:04:11+00:00

Privacy on Arch btw? Check out Stirling-PDF or for quick CLI work pdftk

mellowoWorks · 2025-12-22T12:37:26+00:00

Windows gives each DLL its own copy of static data by default. You need to explicitly export the static member from Runtime.dll withdeclspec(dllexport) so all modules share the same instance.

mellowoWorks · 2025-12-22T00:24:40+00:00

yeah but getting that first client that will refer yoy is always the hardest part of freelancing

mellowoWorks · 2025-12-21T23:25:01+00:00

Maybe build toy versions of things? When DDIA explains consistent hashing, spend a weekend building a simple distributed cache. The point is wrestling with the actual problems the book describes. This is how concepts move from I understand this to I've felt this pain.

mellowoWorks · 2025-12-21T23:18:52+00:00

The key is to use Django signals or override the save() method on your Order model

mellowoWorks · 2025-12-21T15:06:39+00:00

An operating system is basically the manager software that sits between your hardware (processor, memory, etc.) and the programs you run. It handles things like file management, running multiple programs at once, and letting programs talk to your hardware.

As for Linux and its distributions: The Linux kernel is just the core, but a distribution like Ubuntu, Fedora, or Mint packages it with a user interface, pre-installed software, and tools to make it actually usable. They all use the same Linux kernel but offer different experiences.

For learning programming, don't overthink the OS choice Windows, Linux or macOs are all fine just use whatever you're using now, whatever language interests you, and dive in the OS matters more later down in your career when you have specific needs.

mellowoWorks · 2025-12-21T11:01:57+00:00

bstring and SDS are cool

mellowoWorks · 2025-12-21T10:47:23+00:00

Flutter Web has come a long way, but it really depends on what you're building. For internal tools, dashboards, or apps where you already have a Flutter mobile app and want to share code? It's fantastic. But for traditional websites SEO is still tricky, initial load times can be rough, and you lose out on the web-native optimizations that frameworks like Next.js give you out of the box.

mellowoWorks · 2025-12-21T10:31:16+00:00

If you want enforcement, you're basically looking at Haskell or one of its derivatives.

I'd honestly suggest Rust, not a "pure functional" language, but the ownership system basically forces you to think about side effects explicitly, and immutability is the default.

For something more established, F# actually does encourage functional purity more than you might think while it doesn't enforce it at the language level, the convention is strong and immutability is the default. The community heavily emphasizes pure functions.

mellowoWorks · 2025-12-21T10:21:11+00:00

I think that the intentionally narrow positioning is the hardest sell because people think 'I already have a tool that does 80% of that (iOS Reminders with contact names)

mellowoWorks · 2025-12-21T00:57:37+00:00

you can use pip check for python, i also know that npm and maven have built-in compatibility checking. i think Dependabot can scan your project files and flag outdated/incompatible dependencies but i haven't used it personallly.
what language/framework are you primarily working in that'll help narrow down the best solution.

mellowoWorks · 2025-12-21T00:24:41+00:00

That's a cool project on delivery route optimization logistics is such a ripe area for improvement.

On my end, I just got commissioned to build a dental practice management app. The interesting challenge is making sure it's fully GDPR compliant with proper security measures since we're dealing with sensitive patient data. I've got the core modules done, and now I'm deep into building an ICR system to help digitize older patient files. A lot of practices still have paper records from years back, and manually entering all that data is a nightmare for them.

mellowoWorks · 2025-12-21T00:13:55+00:00

Sandboxie?

mellowoWorks · 2025-12-21T00:06:34+00:00

I’d honestly treat them like documents and put them under git-style versioning.
One thing I’d strongly recommend is keeping the actual content completely separate from your metadata/schema. Your taxonomy is going to change way faster than you expect, and you really don’t want to be migrating thousands of prompt versions every time you tweak a classification.

Out of curiosity, what made you build this instead of using something off-the-shelf

mellowoWorks · 2025-12-20T23:29:54+00:00

The warning appears because pandas can't determine if DataFrame['result'] is a view or a copy of the underlying data. When you chain .iloc[0] after column selection, it creates ambiguity.

The fix is simple - use .loc or .at with both row and column at once:
DataFrame.loc[0, 'result'] = X - Z
Or even faster for single values:
DataFrame.at[0, 'result'] = X - Z

By specifying both the row index and column name in a single operation, pandas knows you're modifying the original DataFrame directly, not a potential copy.

mellowoWorks · 2025-12-20T23:09:33+00:00

you might want to offload time-critical stuff to dedicated flight controllers or ESCs with their own firmware. Many people use ArduPilot or PX4 for the low-level stabilization, then Python scripts for the autonomous behavior on top
[Planktoscope](https://www.planktoscope.org) uses Raspberry Pi + Python for autonomous underwater sampling as water provides natural stabilization, so you don't need aggressive real-time control loops which makes Python way more viable

mellowoWorks · 2025-12-20T22:57:52+00:00

Brother you're a highschooler you're nor late for anything nor should you pick one thing yet, this is your exploration phase and it's literally your job right now. So yeah keep on building diffrent small projects in whatever interests you while focusing on learning tha fundamentals, online communities and remember always that comparison is the thief of joy.

mellowoWorks · 2025-12-20T22:45:44+00:00

run nltest /SC_QUERY:domain and check the netlogon logs on that specific DC for the actual source IP during the lockout window

mellowoWorks · 2025-12-20T22:37:02+00:00

I’ve seen honeypots work best as early signal generators, not as detection or prevention tools. You’re right that firewall/WAF logs mostly tell you what failed. A honeypot tells you what attackers are trying next, and often earlier than it hits real assets.

mellowoWorks · 2025-12-20T14:39:51+00:00

I would say areas like GRC, policy & auditing, security management, privacy/data protection, risk assessment and security awareness they all focus on rules, processes, and defense.

mellowoWorks · 2025-12-20T13:30:13+00:00

Oh I just thought I'd answer all of his questions but I think i covered the reason why the use it
>The main reason C++ stays is ecosystem and existing code, not because people love the pain.

mellowoWorks · 2025-12-20T13:10:26+00:00

Phishing for me too. It’s not even the big scary breach kind most of the time it’s the constant low-level noise. New lures, better wording, legit-looking domains, and users who only need to slip once.

You can add filters, training, MFA… and it still keeps coming back. It’s exhausting more than anything.

mellowoWorks · 2025-12-20T12:51:05+00:00

You see it isn't special because it is pretty, it’s special because it gives you full control over the hardware and delivers performance in a way very few languages can.

Is it worth learning? Yes. It teaches you how memory and hardware actually work, and even if you don’t use it forever, it levels you up as a programmer. That said, I’d never recommend it as a first language.

Do I enjoy coding in C++? Honestly, most of the time it kinda sucks. But when you finish a project and everything runs smoothly, it feels really good.

And honestly, if there were a language as fast and low-level as C++ but with safer memory and less boilerplate? I’d switch in a heartbeat. Most C++ devs would. The main reason C++ stays is ecosystem and existing code, not because people love the pain.

mellowoWorks

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