Categories

Jacar categories — explore the topics A rocket whose eyes follow your cursor.
How to Install

What PegaProx adds over the Proxmox VE 9 GUI

PegaProx 0.9.x is an AGPL-3.0 panel that manages several Proxmox VE 8 and 9 clusters, plus XCP-ng, from a single screen. It adds live migration across clusters, OIDC with Entra ID, a CVE scanner and one-click hardening on top of the stock GUI, which only covers one cluster at a time.

Mac

Essential Software for Your New M5 Mac (2026 guide)

100 must-have apps for your M5 Mac organised into 20 categories: browser, notes, terminal, IDE, containers, AI and more. Each pick with purpose, key features, plugins, pricing in EUR and the official link.

Software Development

AI editors in 2026: comparison after a year of use

Claude Code leads long-horizon agentic work, Cursor wins for fast daily interactive editing, Aider dominates CI-pipeline automation, and GitHub Copilot fits teams built around GitHub PRs; Windsurf competes with fresh traction. After a year using all five hard, the most productive combination for most people is still Claude Code plus Cursor.

How to Install

How to install Coolify on Docker (2026 step-by-step guide)

Coolify is an open source self-hosted deployment platform that replicates the Vercel or Heroku experience on your own Docker infrastructure. This guide installs Coolify 4.x step by step on Ubuntu 24.04, from the official script to the first Git deployment with automatic SSL and managed databases.

Methodologies

AI-integrated DevOps tools in my daily flow

After fourteen months testing AI-integrated DevOps tools across several teams, the stack that stays is small: Claude Code, Cursor, and Aider for code; PagerDuty AIOps, Datadog Bits AI, and Grafana Assistant for alert triage; and OpenTofu with OPA for infrastructure generation bounded by policy rules.

Software Development

AI tools for developers: the 2026 stack

The AI tool stack a developer uses in 2026 looks nothing like it did eighteen months ago. Agentic editors, review tools, terminal agents, and test assistants have settled into recognizable roles. A practical guide by category.

Technology

Observability tools I would recommend in 2026

After a decade of Prometheus, three years of consolidation around OpenTelemetry, and the open stack now mature with Grafana, Loki, and Tempo, concrete recommendations for teams starting or reviewing their observability layer: what fits, what is excess, and what to avoid.