The Manifest.
More posts from The Manifest, paginated so the main blog stays lighter and faster to load.
PromQL (Prometheus & Grafana) Alerting Cheatsheet: The Complete Reference
Write high-performance Prometheus monitoring rules: PromQL selectors, vector matching, rates, offsets, and alert configurations.
PostgreSQL Performance Tuning for Developers: Indexing, Queries, and Configuration
Practical PostgreSQL performance guide for developers. Indexing strategies, query optimization with EXPLAIN ANALYZE, memory tuning, and connection pooling. PostgreSQL 18 benchmarks included.
Buying Traffic vs. Earning From Ads: Publisher vs. Advertiser Guide
Understand the distinct roles of publishers and advertisers. Compare the economics of buying traffic (arbitrage) vs. earning from display ads in 2026.
eBPF & Cilium Kubernetes Networking Cheatsheet: The Complete Reference
Master eBPF and Cilium CNI: secure Kubernetes networking, cross-cluster service routing, Hubble network visibility, and network policies.
5 Ways to Build English Vocabulary Daily
Stop memorizing word lists that don't stick. Five practical routines to learn and retain English vocabulary — from spaced repetition to active recall — that work at every CEFR level.
Best Privacy Browsers in 2026: Firefox vs Brave vs Librewolf vs Tor vs Mullvad
Fact-checked comparison of privacy-focused browsers. Tracking protection, fingerprinting resistance, usability trade-offs, and which browser for your threat model.
The Trust Crisis in AI Coding: 84% Use It, 3% Trust It
84% of developers use AI coding tools but only 3% highly trust the output. Why trust is so low, real examples of failures, and how to build a healthy skepticism into your workflow.
AWS IAM Policies & Boundaries Cheatsheet: The Complete Reference
Master advanced AWS security: IAM policy structure, Permissions Boundaries, Attribute-Based Access Control (ABAC), and Service Control Policies (SCPs).
AWS EKS Production Tuning Cheatsheet: The Complete Reference
Scale Kubernetes on AWS: EKS compute nodes (Karpenter), networking (VPC CNI), IAM Roles for Service Accounts (IRSA/EKS Pod Identities), and cost optimization.
DevOps Pipeline with Free Tools: Complete CI/CD Setup Guide 2026
Build a production-grade DevOps pipeline using free tools: GitHub Actions, Docker, CodeRabbit, SonarCloud, and Render. Step-by-step CI/CD setup with zero monthly cost.
How to Stay Safe on the Dark Web: A Complete Security Guide
Accessing the dark web safely isn't about being anonymous — it's about being boring. Here's how to configure Tor correctly, verify .onion sites, avoid common traps, and know what Tor does and doesn't protect against.
![Anthropic Academy: Free Claude Courses, MCP & Claude Code [2026]](/og/reference/learning/anthropic-academy.webp)
Anthropic Academy: Free Claude Courses, MCP & Claude Code [2026]
Complete guide to Anthropic Academy free Skilljar courses, Claude Code training, and MCP short courses in 2026. With DeepLearning.ai partnership reviews.
![OpenAI Academy: Free Courses & Official Certifications Guide [2026]](/og/reference/learning/openai-academy.webp)
OpenAI Academy: Free Courses & Official Certifications Guide [2026]
Complete guide to OpenAI Academy free self-paced courses and new official ChatGPT Certifications in 2026. Includes DeepLearning.ai reviews.
AWS Transit Gateway & VPC Routing Cheatsheet: The Complete Reference
Architect scalable AWS networks: VPC Peering, Transit Gateway, VPC endpoints (PrivateLink), NAT Gateways, and centralized ingress/egress patterns.
Best Private Messengers in 2026: Signal vs Session vs SimpleX vs WhatsApp vs Telegram
Fact-checked comparison of end-to-end encrypted messaging apps. Encryption protocols, metadata collection, jurisdiction, feature tables, and migration guides for privacy-focused users.
Tor on Mobile: Using Orbot and Tor Browser on Android
Complete guide to using Tor on your phone. How to set up Orbot, Tor Browser for Android, bridge configuration on mobile, and when to use each app for maximum privacy.
Optimizing Netlify Blobs for Edge Functions: Lightweight In-Memory Caching
A complete step-by-step developer guide to reducing cold starts and database latency inside Netlify Edge Functions by implementing a lightweight in-memory cache.
Best AI Code Review Tools in 2026: Comparison & Guide
Compare CodeRabbit, GitHub Copilot Code Review, Amazon CodeGuru, Qodo, and GitLab Duo. Pricing, accuracy benchmarks, integration depth, and which to use for your team.
AWS DynamoDB Single-Table Design Cheatsheet: The Complete Reference
Model relational data in NoSQL: DynamoDB single-table design, partition keys, sort keys, Global Secondary Indexes (GSIs), and transactional patterns.
Debugging Node.js OOM in Docker: Secure V8 Heap Profiling with Zero Downtime
A complete step-by-step guide to troubleshooting containerized Node.js memory leaks. Configure automatic V8 heap snapshot captures and connect securely to production containers.
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