Cloud computing, publish-subscribe architecture, modern cityscape, skyscraper, glass windows, urban landscape, foggy morning, soft warm lighting, misty atmosphere, 3/4 composition, shallow depth of field, blurred background, sharp foreground, minimalist style, sleek lines, metallic materials, LED lights, wires, circuits, motherboards, servers, computers, keyboards, coding screens, programmers, casual wear, glasses, messy hair, focused expressions, gestures, post-it notes, coffee cups, ergonomic chairs.