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CRChristian Richtershibui.hashnode.dev4h ago · 7 min read

One Schema, Ten Systems: What Happened When We Let Users Query 31M Rows in Plain English

We built a financial data MCP server. It sits on 64 years of US stock market data, 31 million daily price records, quarterly financials, daily valuations, 56 technical indicators, SEC filing metadata,

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AMArchit Mittalautomate-archit.hashnode.dev3h ago · 7 min read

Build an Offline GSTIN Validator in 62 Lines of Python

Every vendor master I have ever been handed has bad GSTINs in it. Not malicious — just typos. A digit swapped during copy-paste, a trailing space, an O where a 0 should be, a number carried over from

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ĐĐĐăng Đỗiot-security-lab.hashnode.dev3h ago · 1 min read

I Built a TCP Port Scanner in Python - Scanning Only Localhost

Why I built this Project 02 in my small-security-projects series. After the password checker, I wanted to understand networking. Port scanning is a technique used to identify open ports and services a

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NNumberCheckernumberchecker.hashnode.dev4h ago · 5 min read

Designing a modular data pipeline to filter and categorize phone number lists by platform-specific activity and value signals

The Challenge of High-Volume Contact Data In modern data engineering, the "more is better" approach to contact lists often leads to a significant technical bottleneck. When processing a list of 100,00

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VVectorNodevectronode.hashnode.dev10h ago · 6 min read

Reuse HTTP Connections for OpenAI-Compatible APIs in Python

A one-off API script can create a client, send one request, and exit. A long-running worker should not rebuild its HTTP connection state for every prompt. Repeated client creation can repeat DNS looku

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KGKunal Guptakunalforked.hashnode.dev1d ago · 11 min read

Prefect on Kubernetes: Explained

Flows, tasks, deployments, work pools, workers, and what actually happens to a pod from the second it's born to the second it dies. Quickly, what is Prefect? Say your app's UI has a button - "Run Repo

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NKNandan Kumarblog.nandan.dev1d ago · 12 min read

Bulk-Adding Google Workspace Domain Aliases Without Service-Account Keys

Managing one domain in Google Workspace is straightforward. Managing ten, twenty, or more domains across several brands is where the process starts to hurt. For every domain, an administrator has to p

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Sspongeb0bbobtaylor.hashnode.dev23h ago · 10 min read

Pylint Was Too Slow, So I Built Arid

I didn't set out to write a duplicate-code checker. I was working on Polaris, a fairly large Python project, and doing what I normally do: running code-quality tools against it. Ruff handles most of w

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TTharuntharunpandya.hashnode.dev1d ago · 9 min read

Multiple Linear Regression: When One Input Isn't Enough

Picture two different orders. Both are exactly 3 kilometers away from the restaurant. One arrives in 18 minutes. The other takes 35 minutes. If distance is the only thing our model looks at, it has no

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AKAman Karkiamankarki.hashnode.dev1d ago · 6 min read

I Built an AI Refactoring Tool That Can't See More Code Than the Dependency Graph Allows

I've spent few days building RAAG — a platform that parses code, builds a dependency graph, computes coupling metrics, and indexes the code for semantic search. Every piece of that was in service of o

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#python

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Trending tags this week

One Schema, Ten Systems: What Happened When We Let Users Query 31M Rows in Plain English

Build an Offline GSTIN Validator in 62 Lines of Python

I Built a TCP Port Scanner in Python - Scanning Only Localhost

Designing a modular data pipeline to filter and categorize phone number lists by platform-specific activity and value signals

Reuse HTTP Connections for OpenAI-Compatible APIs in Python

Prefect on Kubernetes: Explained

Bulk-Adding Google Workspace Domain Aliases Without Service-Account Keys

Pylint Was Too Slow, So I Built Arid

Multiple Linear Regression: When One Input Isn't Enough

I Built an AI Refactoring Tool That Can't See More Code Than the Dependency Graph Allows