apt Ref per Libor Benes (Dr. B)

🎯 apt Ref sidebar brings a clean, practical reference for the entire Advanced Package Tool (apt) ecosystem directly into your Firefox sidebar: apt, apt-get, apt-cache, apt-mark.Whether you're updating software, installing packages, diagnosing dependency trees, or testing safe upgrades via dry-run simulations — the right command is always available without switching tabs or searching the web.

🗂️ WHAT EACH ENTRY CONTAINS:
• Tool name with clear color-coded classification headers.
• Short description of best use cases.
• Ready-to-copy commands dynamically reflecting your active modifier choices.
• Realistic terminal output mockups depicting expected results or sudo permission failures.

🖥️ FEATURES:
🔎 Live search — Filter instantly across command names, descriptions, and categories.
📋 One-click Copy buttons for every command.
⚡ Live Sudo Architecture Switch — Global checkbox to safely toggle sudo prefixes on modifications.
🧪 Simulation State Switch — Instantly append --simulate flags to preview sandbox runs in real time.
🧹 Clean, compact, and highly readable layout optimized for narrow sidebars.

🔒 SECURITY-FIRST ARCHITECTURE:
✅ No data collection — explicitly declared in manifest.json.
✅ No telemetry or network requests.
✅ No eval() — safe, audited code.
✅ No innerHTML from user input.
✅ Active input validation and strict regex sanitation filters.
✅ clipboardWrite permission only.
✅ Flat file structure, no icons, minimal asset footprint.

🛠️ TECHNICAL:
• Compatibility: Firefox 140.0+ Desktop.
• Resource Efficient - Very lightweight:
• Runtime Execution RAM Footprint: ~19 KB (core scripts: manifest.json + sidebar.html + style.css + sidebar.js).
• Total Extension Download/Install Size: ~45 KB (including README.md).
• 100% client-side.
• No storage, no background scripts, no external resources.
•⚠️ Desktop only.

🎯 Best for:
• Linux power users and open-source enthusiasts.
• System administrators managing servers.
• DevOps & SRE engineers.
• Developers writing automation, deployment, or Docker provisioning scripts.
• Students learning Linux command line package management.

Fast. Clean. Practical.