Your RAG chatbot gives confident, wrong answers?

Production RAG in 5 steps:
1. Overlapping chunks + source/page
2. Vector + keyword search in parallel
3. Merge, rerank, keep top 5
4. Answer only from context, cite it
5. Weak retrieval? Say "I don't know"

#RAG #AIEngineering

PHP CVE-2026-109618: multipart → OOM → longjmp with half-built state → shutdown RCE.

Patch: 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 👇 #PHP #AppSec

Azure Service Bus Tutorial with .NET: Queues, Topics, Backpressure & Dead-Letter Queues

Coding agent = while loop. Skills = process. MCP = tools. Worktrees = isolation.

Without those three, two agents in one checkout go to war. #AIAgents #MCP

Build one yourself, full tutorial: youtu.be/hwaDzlU9-GM
More hands-on AI & system design: systemdrd.com/?utm_source=x&…

Spin up PostgreSQL & hit your first psql prompt #SQL

three enterprise customers. one platform. zero isolation. that's how outages become breaches.
we build tenant isolation + quotas + sso + billing — hands-on, day 106-110 of our system design course.
website: systemdrd.com
#multitenant #systemdesign #saasarchitecture

Install Claude Code & ship your first AI edit in 3 hours.
Reply: Course: [course link] | Free System Design eBook: [eBook link] #ClaudeCode

.NET Aspire Observability: Serilog, OpenTelemetry & Distributed Tracing
Course Introduction: distributeddotnet.substack.com/p/about-distri… Complete Curriculum — 45 Posts: distributeddotnet.substack.com/p/45-posts-one…

Your KV store loses every key on restart. Fix it with a WAL

Visit our Website : systemdrd.com Course Link : handsonk8s.substack.com Curriculum: handsonk8s.substack.com/p/curriculum
Hands On Kubernetes Course.

Debug Java microservices with Micrometer & OpenTelemetry
🎁 systemdrd.com/system-design-…
🎓 systemdrd.com/courses/troubl…

Build a 5-Agent RAG Pipeline: Hybrid Search, Reranking & Critic Agent

Course overview: aieworks.substack.com/p/ai-reliabili…

Master NumPy, tensors & calculus for AI. Build 5 apps #AI

Model Users, Tweets & Follows in SQL | System Design

AI Reliability Engineering: Make Your AI System Production-Ready in 90 Days
Course overview: aieworks.substack.com/p/ai-reliabili…

Learn Python in 35 days: 4 modules, zero to production 🐍

Names. Emails. Ids. sitting in plain text in your logs.
We build rbac + field-level encryption + redaction + gdpr compliance — Hands-on, day 64-69 of our System Design Course.
Enroll Free: sdcourse.substack.com/p/course-syste…
#datasecurity #gdprcompliance #systemdesign #encryption #systemdr

Most Kafka courses stop at producers and consumers.

Hands On Kafka: 60 days, 60 lessons, one system, built in Java and Spring Boot.

handsonkafka.substack.com/p/streamsocial…

#ApacheKafka #Java #SpringBoot