Lians

Evidence-backed proof of done for Claude Code, Codex, Cursor, and other AI coding agents. Run real checks, bind results to current Git state, and know what is ready for human review.

https://github.com/Lians-ai/Lians

The Polars vs SQL differences nobody is talking about

This post explores important differences between Polars and SQL that can cause unexpected results when moving between the two, including row ordering, column independence, literals, null handling, and broadcasting. It explains how understanding these different mental models can help developers write safer Polars code and more reliably translate data workflows between Polars and SQL.

https://labs.quansight.org/blog/polars-vs-sql-differences

Creating PySide6 UI without .ui / Qt Designer

Build your entire GUI in pure Python code, no .ui files required.

https://www.pythonguis.com/faq/creating-pyside2-ui-without-ui-qt-designer/

Soup

Fine-tune and post-train LLMs in one command. No SSH, no config hell.

https://github.com/MakazhanAlpamys/Soup

OpenFlight

OpenFlight is an open-source golf launch monitor built around the OPS243-A Doppler radar, with an optional TI IWR6843 angle radar.

https://github.com/jewbetcha/openflight

PyAdventure — a free Python learning game built with Pygame

Learn Python across 10 worlds, each teaching one topic, ending in a boss battle. Free, Windows.

https://khalidmfy.itch.io/pyadventure

MTPLX

Run local LLMs on Apple Silicon, around twice as fast.

https://github.com/youssofal/MTPLX

Tur: Sovereign Cognition Engine for Persistent, Evolving AI Entities

An open-source state engine transforming stateless LLMs into persistent AI entities with Merkle memory and epigenetic learning.

https://github.com/erivlis/tur

Basic Memory

Plain Markdown files, semantic connections, and a knowledge graph that grows with every conversation. Open source, local-first, works with any AI.

https://basicmemory.com

neka-nat / freecad-mcp

FreeCAD MCP(Model Context Protocol) server

https://github.com/neka-nat/freecad-mcp

ShieldFont

An open-source typeface that protects written work by poisoning unauthorized AI training datasets.

https://github.com/isaqueseneda/shieldfont

15 Python Libraries That Deserve More Attention

This is a roundup of 15 Python libraries that can make code cleaner, faster, and easier to maintain across areas like configuration, serialization, testing, scheduling, and UI development. It also highlights practical tools for dependency injection, state machines, data analysis, and more reliabledatetimehandling.

https://www.youtube.com/watch?v=ssLO99uwPWI

claude-ads

Claude-first, portable paid-media operations for agencies, consultants, and in-house performance teams.

https://github.com/AgriciDaniel/claude-ads

SimplifyJobs / Summer2027-Internships

Summer 2027 software engineering, data science, AI, quant, product management, and hardware internship postings. Updated daily by Simplify and Pitt CSC.

https://github.com/SimplifyJobs/Summer2027-Internships

Tencent / AI-Infra-Guard

A full-stack AI Red Teaming platform securing AI ecosystems via Agent Scan, Skills Scan, MCP scan, AI Infra scan and LLM jailbreak evaluation.

https://github.com/Tencent/AI-Infra-Guard

Origintracer

A low-level asynchronous web framework observability system. The system can trace nginx, gunicorn, Uvicorn, django and celery.

https://origintracer.app/docs/

When str.lower() is a security vulnerability in Python

A Python security vulnerability caused IDNA 2003 handling to use the interpreter’s current Unicode case-folding rules instead of the Unicode 3.2 rules required by the specification.The fix makes Python’s case-folding behavior match Unicode 3.2 for StringPrep, restoring standards-compliant IDNA encoding and addressing CVE-2026-17084.

https://sethmlarson.dev/when-str-lower-is-a-security-vulnerability

The Mullet Stack - JavaScript in the front, Python in the back.

This is a practical guide to building a modern full-stack application with FastAPI and Pydantic on the Python backend and React and TypeScript on the frontend. It explores how their different type systems work together and shows how generating frontend types from FastAPI’s OpenAPI schema prevents backend and frontend models from drifting apart.

https://seanhelvey.com/mullet-stack/guide/

What's missing to have reproducible builds on PyPI

The article explores what Python packaging is missing to support reproducible builds on PyPI, allowing third parties to verify that distributions match their source code and haven't been tampered with. It proposes recording source information and build tools, using SBOMs, and having trusted verifiers report successfully reproduced packages back to PyPI.

https://snarky.ca/whats-missing-to-have-reproducible-builds-on-pypi/