// technology_overview.md — v1.3 — September 2026

What's built.
What's needed.
What's next.

A complete map of the Sunsets technology stack — hardware, software, content, streaming, and sensory systems. Each component is rated by readiness status. Phase 1 is designed to launch with zero unproven technology. Phase 2 builds the live network.

Ready — commercially available
Partial — available, needs integration
Planned — needs procurement
To Build — custom development required

// system_architecture

Four core
systems.

Sunsets’ technology is organised into four distinct systems. Each operates independently but integrates into a unified experience. Phase 1 relies entirely on commercially available components. The custom build work is Phase 2.

Display & Visual
System 01
🖥️
Ready

High-definition LED display panels installed within each booth, rendering 4K (Phase 1) to 8K (Phase 2) sunset scenes. Bezel-less configuration creates an immersive window effect. Dynamic overlays show local time, city name, and live conditions.

Samsung The Wall / LG DVLED — commercial display solutions
Minimum 4K @ 60fps per booth — 8K preferred at scale
Bezel-less or floating frame installation
Dynamic HDR for sunset colour fidelity
Overlay system: city, time, scene countdown
Content & Streaming
System 02
📡
Partial

Phase 1: pre-produced 4K/8K looped content library. Phase 2: live feeds from camera rigs at partner city rooftops, delivered via CDN with low-latency encoding. The scene management dashboard controls which booth shows which scene in real time.

Phase 1: Cinematic 4K loops, produced on location per city
Phase 2: Live RTMP/SRT feeds, 4K @ 30fps minimum
CDN: Cloudflare Stream / AWS IVS for low-latency global delivery
Scene CMS: custom dashboard for real-time booth assignment
Redundancy: local NVMe playback backup if feed drops
Multi-Sensory
System 03
🌿
Ready

Scent diffusion, directional audio, and atmospheric lighting — the three non-visual sensory layers. All three systems use commercially available professional hardware. The integration layer (synchronising all three to the active scene) requires custom software.

Scent: Prolitec / Aromatec diffusion units ($200–$500/booth)
Audio: d&b audiotechnik / Bose Pro directional speakers
Lighting: Lutron or ETC scene-linked control per booth
Sync layer: API bridge between scene CMS and sensory hardware
Scent cartridges: 18+ city-specific formulas, supplied centrally
Operations & Loyalty
System 04
⚙️
To Build

Booking system, Sunsets Passport loyalty programme, and the venue management dashboard. Booking integrates with an existing hospitality platform (SevenRooms or ResDiary). The Passport app is bespoke — it's the primary retention and cross-venue engagement tool.

Booking: SevenRooms or ResDiary API integration
Passport: native iOS/Android app (React Native)
Stamp system: NFC or QR per booth, recorded per user
Loyalty engine: discount logic, cross-venue passport tracking
Venue dashboard: real-time occupancy, scene control, event mode

// component_registry

Component
by component.

Every technology component, its vendor or build route, the phase it's required in, and its current readiness status.

Hardware
LED Display Panels
Samsung The Wall · LG DVLED
Phase 1
Ready
Media Players / GPU
Brightsign · NVIDIA A-series
Phase 1
Ready
Scent Diffusers
Prolitec Sphere · Aromatec AM-400
Phase 1
Ready
Directional Speakers
d&b audiotechnik · Bose Pro
Phase 1
Ready
Lighting Control
Lutron Quantum · ETC
Phase 1
Ready
NFC Stamp Hardware
Impinj · custom enclosure
Phase 1
Partial
Camera Rigs (city feeds)
Sony FX9 · PTZ Optics · custom mount
Phase 2
Planned
Encoding Hardware
Haivision KB · LiveU LU800
Phase 2
Planned
Software & Services
Content Playback CMS
Brightsign OS · custom wrapper
Phase 1
Partial
Scene Management Dashboard
Custom build (React + Node)
Phase 1
To Build
Booking System Integration
SevenRooms API · ResDiary
Phase 1
Partial
Sunsets Passport App
React Native · custom backend
Phase 1
To Build
Sensory Sync API
Custom middleware layer
Phase 1
To Build
Live CDN Delivery
Cloudflare Stream · AWS IVS
Phase 2
Planned
Live Encoding Pipeline
FFmpeg · custom orchestration
Phase 2
To Build
Weather-Adaptive Switching
OpenWeather API · custom trigger logic
Phase 2
To Build

// gap_analysis.csv

Where the
gaps are.

Five components require custom development. Three are Phase 1 requirements (needed before pilot launch). Two are Phase 2 (needed before live network). None are technically novel — all have clear development paths.

Component Category Phase Effort Notes
Scene Management Dashboard
software / web
Phase 1
Medium
Real-time booth-to-scene assignment, event mode toggle, playback status. Standard web app — 6–10 weeks build.
Sunsets Passport App
mobile / backend
Phase 1
High
iOS + Android. NFC or QR stamp collection, cross-venue passport, discount engine. 14–20 weeks. Core retention product.
Sensory Sync Middleware
software / API
Phase 1
Medium
API bridge between scene CMS and scent/audio/lighting hardware. Triggers correct profile when scene changes. 4–6 weeks build.
Live Encoding Pipeline
infrastructure / devops
Phase 2
High
Ingests RTMP from city camera rigs, transcodes to adaptive bitrate, pushes to CDN. FFmpeg-based, cloud-native. 10–16 weeks.
Weather-Adaptive Content Switch
software / automation
Phase 2
Low
Monitors weather at each city feed location. Automatically switches to loop backup if live conditions degrade. 2–3 weeks build on top of CMS.

// phase_diff

Phase 1 vs
Phase 2.

1
Dubai Pilot
2026 · Loop-first · No live dependency

Phase 1 uses no unproven technology. Every component is commercially available or a standard custom build. The entire experience works on looped 4K content — which is indistinguishable from live for 80% of operating hours.

✅LED display panelsReady
✅Scent diffusion systemsReady
✅Directional audioReady
✅Looped 4K content libraryProduce
🔨Scene management dashboardBuild
🔨Sensory sync middlewareBuild
🔨Sunsets Passport appBuild
🔗Booking system integrationIntegrate
Estimated tech capex $180K–$320K
2
Live Network
2027+ · Live feeds · Multi-venue

Phase 2 adds the live streaming layer and scales the network. Camera rigs are installed at partner city rooftops, live feeds are ingested and distributed, and the scene library transitions from loops to real-time. The pilot tech stack is fully reused.

📷Camera rigs at city partnersProcure
📡Live encoding hardwareProcure
☁️CDN delivery (Cloudflare / AWS)Procure
🔨Live encoding pipelineBuild
🔨Weather-adaptive switchingBuild
✅Scene CMS (Phase 1 extended)Extend
✅Passport app (Phase 1 extended)Extend
✅Loop fallback systemReuse
Estimated incremental capex $120K–$200K / city

// development_roadmap

The build
sequence.

In order from now to live network. Each phase is a dependency for the next.

Now — Month 0 Urgent
Legal & IP Foundation

Protect the Sunsets brand name and core identity in priority markets. File concept description as a trade secret. NDA templates ready before any partner pitch. This must happen before the pitch deck is shared with any external party.

UAE trademark registration
UK / EU trademark filing
NDA templates
Entity structure (UAQ Free Zone)
Month 1–2 Design
Concept Finalisation & Partner Pitch

Lock all 10 booth city selections for pilot. Finalise scent formulas per city. Commission booth design renders for pitch deck. Shortlist and approach Dubai flagship rooftop partners formally.

Booth design renders
Scent formula brief
City library v1.0 locked
Partner NDA + pilot meeting
Month 2–5 Build
Content Production & Core Software

Cinematography teams travel to each pilot city to shoot the 4K loop library (golden hour capture windows — 30–90 min per location). Parallel: begin scene management dashboard and sensory sync API builds.

4K loop production (10 cities)
Scene CMS MVP
Sensory sync API
Booking integration
Month 4–8 Build
Passport App & Venue Installation

Sunsets Passport app development (iOS + Android). Hardware procurement and installation at Dubai venue. Full sensory calibration per booth. Soft launch with invite-only guests to validate the experience before public opening.

Passport app v1.0
LED panel installation
Scent + audio + lighting rig
Soft launch (invite-only)
Month 8–12 Launch
Public Launch & Influencer Campaign

Full public launch with influencer activation, press coverage, and social media campaign. Passport stamps go live. Collect operational data for Series A. Begin outreach to Phase 2 city partners.

Press launch event
Influencer campaign
Passport activation
Phase 2 partner outreach
Year 2+ Phase 2
Live Network Upgrade

Camera rigs installed at first partner city rooftops. Live encoding pipeline goes live. Dubai transitions from loops to live feeds. Scene library expands. Second venue opens. Network effects begin.

City 2 camera rig installation
Live encoding pipeline
CDN delivery live
Venue 2 opens

// prototype_sourcing

What to source
for the first physical mock-up.

The immediate sourcing goal is not to buy a complete venue. It is to prove one destination booth at full quality and use that prototype to lock the design, hardware architecture and cost model.

Architectural Display

Fine-pitch LED, curved or corner-capable modules, service access, heat management and colour performance strong enough for dark hospitality interiors. The screen must read as a window, not a television.

Integrated Booth

Custom seating, concealed lighting, acoustic treatment, ventilation and millwork engineered around the display. Prioritise modular fabrication so one booth system can be adapted across multiple cities.

Sensory Control

Directional audio, dimmable scene lighting, scent delivery and a simple control layer that can switch the full atmosphere together. Prototype reliability matters more than software sophistication.

// open_questions.md

What still
needs deciding.

These are the known unknowns — decisions that need to be made before or during the pilot phase. Logging them here so nothing gets missed.

High Priority
Which booking platform? SevenRooms vs ResDiary vs custom.
Affects integration timeline and cost significantly. SevenRooms has better API docs but higher per-venue cost. Decision needed before Month 2.
High Priority
Passport app: native vs React Native vs web app for v1?
Native gives best NFC integration. React Native is faster to build. Web app (PWA) is fastest and cheapest for Phase 1 MVP. Recommendation: PWA for pilot, native for Phase 2.
Medium Priority
How many cities in the initial 4K loop production run?
10 cities (pilot booths only) vs 16–18 cities (first rotation ready at launch). Cost difference is significant but rotation from day 1 is a strong retention story.
Medium Priority
Scent vendor: Prolitec vs Aromatec vs custom manufacturer?
Prolitec has the widest commercial install base. Aromatec allows fully custom cartridge formulation. Custom manufacturer is cheapest at scale. Pilot can use Prolitec, then switch at scale.
Lower Priority
Phase 2 camera rig: who owns and maintains the equipment at partner cities?
Sunsets-owned (higher capex, full control) vs partner-hosted (lower cost, reliability risk) vs third-party camera rental (most flexible). Needs to be in the partnership agreement template.
Lower Priority
What is the fallback experience when a live feed drops?
Auto-switch to loop of same city (seamless, invisible to guest) vs a "technical pause" notification vs a full system alert. Recommendation: silent auto-fallback to loop. Guest never knows.