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Architecture

Container Monitoring: Beyond cAdvisor

cAdvisor is still embedded in kubelet and covers surface metrics, but falls short for production Kubernetes. The modern minimum stack pairs it with kube-state-metrics, node-exporter, Prometheus, and Grafana as a base, eBPF for deep network and syscall visibility, and OpenTelemetry for application context.

Architecture

PostgreSQL 17: The Novelties That Show Promise

PostgreSQL 17, released in September 2024, cuts vacuum memory use by up to 20x, adds slot synchronization so logical replication survives a failover without a full resync, ships JSON_TABLE as standard SQL:2023 syntax, and introduces streaming I/O to speed up sequential scans. Teams running Postgres in production should start testing it in staging.

Architecture

PostgreSQL 16: Logical Replication That’s Now Practical

PostgreSQL 16 closes the historical gaps in logical replication: parallel apply near 2x faster, logical slots served from physical standbys, and the scaffolding for bidirectional replication. The result is a first-line tool for cross-version migrations and CDC pipelines.

Architecture

Modern SCADA in Containers: Advantages and Risks

Containerising SCADA makes sense for the upper architecture layers: HMI, historians, and data gateways. PLCs still control hardware with hard determinism. The biggest risk is cultural: applying DevOps patterns without adapting to OT context causes incidents. NIS2 requires managing containers as any other critical infrastructure asset.

Software Development

Go 1.22: Updates That Simplify Idiomatic Code

Go 1.22, released in February 2024, fixes the long-standing loop variable capture bug, brings method-aware routing to the standard ServeMux, and finalizes managed toolchain support. Small changes, thoroughly tested across the 1.21 release cycle, with real impact on concurrent Go code.

Architecture

Cilium Service Mesh: When You Don’t Need Sidecars

Cilium Service Mesh replaces Istio or Linkerd sidecars with eBPF in the kernel: it handles policy, WireGuard encryption, and Hubble observability without a per-pod proxy, cutting memory overhead from roughly 100 GB to about 5 GB in a 100-node cluster. It suits large clusters with teams comfortable with eBPF.

Architecture

SQLite in Production: Not Just for Mobile

SQLite in production is more viable than most teams assume. WAL mode removes read contention, Litestream replicates the WAL to S3 in near-realtime, and LiteFS adds multi-node replication. Without a separate database server, apps like Tailscale and PocketBase already do this in production. This article explains when it makes sense and its real limits.

User Experience

WCAG 2.2: What the New Accessibility Version Brings

WCAG 2.2 (W3C, October 5, 2023) adds 9 criteria to WCAG 2.1: Target Size requires clickable targets of at least 24 by 24 pixels, and Accessible Authentication bans logins that require memorising complex passwords without an alternative. Upgrading from 2.1 AA typically takes 1 to 2 sprints for a medium-size product.

Architecture

Linkerd: The Pragmatic Service Mesh Alternative

Linkerd is the pragmatic service mesh for Kubernetes, prioritizing simplicity over feature catalogues. Its Rust proxy uses ~10 MB RAM per sidecar versus 50-100 MB for Envoy under Istio. This comparison explains when adopting it pays off, what it costs to operate, and when Istio makes more sense.

Software Development

TypeScript 5.4: More Powerful Types, Fewer Tricks

TypeScript 5.4, released March 6 2024, adds NoInfer to pin generic type inference without the two-parameter workaround, preserves narrowing inside synchronous callbacks like forEach and map, and ships typed Object.groupBy and Map.groupBy. Three everyday workarounds quietly retired in one incremental release.

Software Development

Zed: A Modern Editor Built for Collaboration

Zed is the editor built by Atom's creators, rebuilt in Rust with a native GPU-rendering UI framework and no Electron. It delivers ~8 ms latency, real-time collaboration with integrated voice and shared cursors, and an open license (GPL v3 + Apache 2.0). A serious VS Code alternative for pairs and small teams.

Architecture

Backstage, Port and Cortex: Three Paths to the IDP

An Internal Developer Platform (IDP) centralises service discovery, provisioning and observability in a single portal, so developers stop depending on stale wikis and Slack channels. Backstage, Port and Cortex dominate the market: Backstage is open source with a dedicated team, Port is fast low-code SaaS, and Cortex focuses on scorecards for measurable technical discipline based on team size.

Architecture

pgvector in 2024: HNSW Indexes and Real Scaling

pgvector matured in 2023-2024 with the HNSW index type and parallel construction that arrived in version 0.6. For projects already running PostgreSQL, a dedicated vector database is not needed in most cases: this guide explains when PostgreSQL is enough, how to configure the index, and where it starts to fall short.

Architecture

SQLite and DuckDB: When Each Is the Right Choice

SQLite and DuckDB are both embedded databases that work from a single file, no server needed. Their architecture differs: SQLite stores rows and excels at short transactions (OLTP); DuckDB stores columns and shines at large-scale analytics (OLAP). Choosing the right one, or combining both, delivers a genuine technical edge.

Software Development

Cursor: The Editor Built Around AI

Cursor is a VS Code fork that puts artificial intelligence at the core of the editor instead of bolting it on as a plugin. It offers inline completion, a chat that understands full project context, and Composer, multi-file editing from a short brief. The Pro plan costs $20 a month and it competes directly with GitHub Copilot.

Software Development

Corporate Low-Code: Retool and Appsmith for Internal Tools

Retool and Appsmith cut internal tool development time from weeks to days. Retool leads the commercial SaaS market with polished components and enterprise permissions; Appsmith brings open source self-hosting at low or zero cost. Low-code works for dashboards, forms, and simple workflows, and breaks on complex logic or highly custom interfaces.

Architecture

GitOps With ArgoCD: From Hype to Stable Production

ArgoCD has established GitOps as the standard deployment practice for Kubernetes: the Git repository is the single source of truth for the desired state, and the agent continuously reconciles the cluster. This guide covers the four formal GitOps principles, sync policies, common production mistakes, and a comparison with Flux.

Architecture

Service Mesh in 2023: Istio, Linkerd, and the Cilium Option

A service mesh adds mTLS, uniform observability, and traffic management between microservices without modifying application code. The ecosystem has consolidated: Istio is the most complete and complex, Linkerd prioritises simplicity with Rust proxies, and Cilium delivers sidecarless service mesh via eBPF.

Software Development

WASI 0.2: The New Standard Interface for WebAssembly

WASI Preview 2 redefines how WebAssembly interacts with the operating system. It introduces the Component Model with typed WIT interfaces and granular capabilities, enabling modules written in different languages to compose without manual serialisation. The full standard arrives in 2024 with direct impact on edge functions, plugins, and serverless.

Architecture

Backstage: Spotify’s Developer Portal

Backstage is the open-source platform from Spotify for building Internal Developer Platforms: a web portal (Node.js + React) that centralises service catalogs, scaffolding, and technical documentation. Adopted by Netflix, American Airlines, and hundreds of companies since 2020, it needs 1-3 dedicated engineers and pays off for organisations with more than 50 developers.

Architecture

eBPF: Kernel Observability Without Recompiling

eBPF is a Linux kernel technology that lets you load and run verified, high-performance programs without recompiling the kernel or rebooting the system. It runs safely inside a virtual machine in the kernel and underpins tools such as Cilium, Pixie, Falco, and Tetragon for real-time tracing, networking, and security.