* [Rackula v26.8.0](https://github.com/RackulaLives/Rackula) – Drag-and-drop rack visualizer for arranging devices, exporting PNG/PDF/SVG, and sharing layouts via QR codes.

* [rack-dev-mark v0.8.2](https://github.com/dtaniwaki/rack-dev-mark) – Differentiates development environments from production using customizable themes.