Case study: Splitting Movie Reconciliation from the Movie Database Is a Poor Service Boundary Executive Summary The current design separates the logic that updates Movie Database (Movie Database) records into a standalone Movie Updates Service, while leaving ownership of the underlying data and datastore inside Movie Database. This creates an artificial distributed boundary around behaviour that is fundamentally …
Forty years of building abstractions, tools and systems I’ve been programming since the early days of home computers and writing software professionally for more than four decades. Looking back across that time, the technologies seem almost impossibly varied. Z80 and 6502 assembly. BASIC. Pascal. 8086 assembly. C and C++. DOS, OS/2, Windows, Mac and Unix. …
UPDATE: All these issues were caused by a loose DIMM 🙂 If you’re running a Ryzen 9950X3D on its integrated GPU under Debian 13 and your system randomly locks up with a solid green screen after hours of normal use, here’s what was going on and how it got resolved. The Symptom Variant: the crash …
Structured exception specification with category owned code prefixes 🎯 1. Key design rules ✅ Category owns the code prefix ✅ Error defines only a numeric suffix ✅ Final error code is derived ✅ Error names use camelCase This enforces semantic ownership and prevents code drift. 🧠 2. Core concepts Concept Definition Root exception Single abstract …
1. Introduction PostgreSQL and MySQL remain the two dominant open-source relational databases. While both can serve general-purpose workloads, they diverge significantly in: This document compares them specifically from the angle of software engineers writing their own SQL queries, using Java/Spring or Node.js backends. 2. SQL and Standards Compliance PostgreSQL PostgreSQL is considered one of the …
Final Tested & Confirmed Working Profile This document contains the fully validated RAM configuration for running 128 GB DDR5 at 6000 MT/s with UCLK=MEMCLK (1:1) on the MSI MAG X870E Tomahawk using a Ryzen 9950X3D. These settings avoid training failures (A6 / A64), ensure stability under load, and deliver the best bandwidth achievable on your …
2x64GB (Crucial 5600MT/s, Corsair 6400MT/s) Corsair SKU CMK128GX5M2B6400C42, Crucial SKU CP2K64G56C46U5 I used the same settings for both sets, the Crucial is working fine at 6000MT/s, 4 passes on Memtest, all good. Crucial test bed Component Name Link Motherboard MSI X670E GAMING PLUS WIFI https://amzn.eu/d/gbp41xZ CPU Ryzen 9 9950X https://amzn.eu/d/cbxvdRz Corsair test bed Component Name …
Motherboard M.2 Slot Gen / Count Exact Slot Mapping / Lane-Sharing Details Notes / Implication for Use MSI X870E Gaming Plus WiFi 3 slots: 1× Gen5 ×4 + 2× Gen4 ×4 (Paradigit) Manual shows three M.2 slots; deeper lane-sharing details not clearly documented publicly. (ManualsLib) Good value board; if you install multiple M.2s plus heavy …
Cluster-A 🌐 in cloud (Hetzner control plane) + workers across 3+ home sites 🏡🏚🏠 over VPN 🌐 High-Level Architecture ✅ Core Principles Feature Design Cluster-A Distributed across sites via VPN Cluster-B Local to main home Networking Tailscale or WireGuard DNS Joker.com Dynamic DNS DB CNPG primary @ home + async replicas at other sites Storage …
This article explains how to configure a high-performance Linux development workstation running Debian 13 (Trixie) or Debian 12 (Bookworm). 📑 Table of Contents 🧩 Introduction This guide prepares a workstation optimized for local development, build pipelines, and database workloads on fast NVMe storage. It focuses on reproducibility, speed, and maintainability. 🖧 Hardware & Network 🖧 …