uv Workspaces: Build a Python Monorepo From Scratch
Build a Python monorepo with uv workspaces: one shared lockfile and virtualenv, cross-package imports, per-package builds, and the gotchas I hit doing it.
Tutorials
Python Lazy Imports (PEP 810): The Startup Speedup, Benchmarked
Python lazy imports (PEP 810) land in Python 3.15. I benchmarked boto3, requests and pydantic startup: the real speedup, and how to get most of it today.
Go's JSON v2 (encoding/json/v2): Faster, Stricter, and What Breaks
Go's encoding/json/v2 is a reported 2–10x faster at unmarshaling but flips v1 defaults: duplicate keys, nil slices, case matching. How to enable it and migrate.
How to Build an AI Agent in Go (From Scratch, No Framework)
Build an AI agent in Go from scratch: a tool-calling loop against the Anthropic API in ~120 lines, no frameworks, with real code and the gotchas I hit.
Python 3.15: Lazy Imports, frozendict, and Faster Startup
Python 3.15 lands lazy imports, a frozendict builtin, unpacking in comprehensions, and the Tachyon sampling profiler. Here's what changed and what to test.
Go Generic Methods: A Hands-On Go 1.27 Tutorial
Go 1.27 finally adds generic methods: type parameters on methods at last. A hands-on tutorial on the syntax, the chaining it enables, and the interface catch.
Mistral OCR 4 Tutorial: Build a Document Pipeline in Python
Extract text, tables, and structured JSON from PDFs using Mistral OCR 4 in Python. Bounding boxes, confidence scores, and a complete invoice pipeline.
Claude Code Dynamic Workflows: Build 4 Production Scripts From Scratch
Learn to build 4 real Claude Code workflow scripts for code audit, migration, security review, and research. Includes actual output and cost breakdowns.
LiteLLM Vulnerability 2026: CVSS 10.0 RCE and the Fix
LiteLLM's 2026 CVEs include a CVSS 10.0 unauthenticated RCE that CISA flagged as actively exploited. Which versions are hit and how to patch to v1.83.14+.
Go 1.26 Tutorial: Green Tea GC, SIMD, and 8 Features Worth Knowing
Go 1.26 ships Green Tea GC by default (10-40% less overhead), experimental SIMD, runtime/secret, and a rewritten go fix. Hands-on code for each feature.