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Ditch H2: PostgreSQL Repository Tests with Testcontainers and @ServiceConnection in Spring Boot 4
4+ min ago (204+ words) Your repository tests are green. Then production throws a column “metadata” is of type jsonb but expression is of type character varying…Continue reading on Medium » Ditch H2: PostgreSQL Repository Tests with Testcontainers and @ServiceConnection in Spring Boot 4 Your repository tests…...
From Monolith to Modular: A Curated Guide to Blogging About Modern LLM Architectures The Fusion…
8+ min ago (10+ words) Continue reading on Medium » From Monolith to Modular: A Curated...
Vector Store: How Similarity Becomes Something You Can Actually Search
41+ min ago (290+ words) A beginner’s guide to how vector stores make embeddings searchable while preserving their connection to the passages and …...
Every Guide Teaches Your Tongue. The Skill She Actually Notices Is Your Attention.
56+ min ago (24+ words) She can feel you performing the guide. Five attention mistakes that undo good technique, and the one question that gets you her real map....
Spring Boot 4 + Java 25: 10 Things You Should Stop Doing in Your REST APIs
1+ hour, 14+ min ago (38+ words) Modernizing only works when you can say out loud what each change buys you. “It’s newer” is not a reason. I keep a …...
Playwright Chronicles: Crafting Elegant Automation in JS/TS from Scratch — Part 50: Mastering Git…
1+ hour, 18+ min ago (46+ words) Learn how to connect your automation project to GitHub with a step‑by‑step Git workflow. From creating a repository, initializing Git, staging files, committing changes, renaming the branch, adding a remote origin, and finally pushing code, this guide ensures…...
DeepSeek Built a “Flash” Model That Killed Its Own Pro Tier
1+ hour, 25+ min ago (33+ words) DeepSeek just made its own most expensive model obsolete, on purpose. On September 10, 2026, DeepSeek released V4.1 Flash. It is open …...
Building a Stable AI Agent Workflow in NVIDIA's NeMo Agent Toolkit: A Practical Journey
1+ hour, 30+ min ago (80+ words) Frank Morales Aguilera, BEng, MEng, SMIEEE Founder & CEO, SOMALA | Former Boeing Associate Technical Fellow | …...
Bias-Variance Tradeoff in Machine Learning: How to Control Underfitting and Overfitting
1+ hour, 42+ min ago (1040+ words) A practical guide to model complexity, generalization error, regularization, cross-validation, and ensemble …...
Two Weeks In: Reflections from the Edge of My Own Competence
1+ hour, 50+ min ago (488+ words) It’s been two weeks since I started my new job in September 2026. I want to write down where things stand right now. I’m currently working on the development of AI-based image recognition software. But honestly, I don’t fully understand what…...