Installation

In Blender open Edit, Preferences, Get Extensions, then use Install from Disk and pick the mosque_generator zip.

Usage

1. Open the Mosque tab in the 3D viewport sidebar (N). With no mosque selected, click the big picture to browse the designs, or open Browse Designs and pick a tradition and a design, then press Add Mosque to place it at the 3D cursor. You can also use Shift+A, Mesh, Mosque.
2. The card at the top shows the design, its size and face count. Surprise makes a new random mosque, Vary changes the current one a little, Materials picks a new matching scheme and the arrow resets everything to the design. The Age slider below them ages the whole mosque from freshly restored to centuries old.
3. The icon tabs hold every setting: Prayer Hall (plan, size, arches, windows, walls, cornice, crenellation, platform), Domes (profile, layout, drum, semi-domes, small domes, finial, chhatris), Minarets (count, placement, shaft, balconies, top), Courtyard & Portal (portal, courtyard, arcades, iwans, fountain), Roof (flat, tiered, hipped, naves, Chinese, tent), Materials (walls, trim, domes, roof, tiles, metal, paving), Interior (walk-in hall: chandeliers and lamps, walls and floor, decoration, light, structure, mihrab and minbar; Step Inside adds an interior camera) and Parts & Export (part visibility, detail level, Convert to Mesh).
4. Convert to Mesh keeps the mosque as plain meshes; Delete removes it with all its parts.

All sizes are in meters. The root empty sits on the ground at the center of the prayer hall; the qibla wall faces +Y and the entrance -Y.