Offline PMS mirror that keeps Tanzanian hotels booking during power outages.
Tanzanian hoteliers lose revenue from frequent electricity blackouts that crash their cloud-based property management systems, forcing manual operations during peak tourist seasons.
BlackoutSync is a PWA that pulls and caches your cloud PMS data into IndexedDB for full offline access to reservations, check-ins, and reports. Edit operations seamlessly while offline and auto-sync changes when power and internet return. Designed specifically for Tanzania's frequent blackouts, it minimizes revenue loss during peak seasons.
Hotel owners and managers in Tanzania using cloud-based property management systems
Deep offline caching with conflict-free sync for any PMS API, tailored to Tanzanian hotel workflows.
professional
Connect to any cloud PMS via API key and pull reservations/check-ins in real-time.
Cache reservations, guests, rooms in IndexedDB for full offline CRUD operations.
Detect connectivity/power restore and sync changes with merge conflict resolution.
Perform check-ins, room assignments, and basic billing without internet.
Generate occupancy and revenue reports from cached data offline.
Sync across phones/tablets via cloud when online.
Pre-built integrations for popular PMS like Mews/Cloudbeds.
Alert on sync status or upcoming blackouts via service worker.
Offline PDF generation for manual handover.
Use simple ML to resolve edit conflicts.
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| created_at | timestamp | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| name | text | No |
| pms_api_key | text | No |
| last_sync | timestamp | Yes |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| hotel_id | uuid | No |
| guest_name | text | No |
| room_number | text | Yes |
| status | text | No |
| local_last_modified | timestamp | Yes |
| synced | bool | No |
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| hotel_id | uuid | No |
| status | text | No |
| timestamp | timestamp | No |
Relationships:
/api/hotelsCreate hotel with PMS key
/api/reservations/syncPush local changes to cloud PMS
/api/sync-statusGet latest sync status for hotel
/api/pull-dataInitial/full data pull from PMS
50 reservations/month
None
None
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 30 | 3% | $26 | $312 |
| Month 6 | 200 | 8% | $464 | $5,568 |
BlackoutSync keeps your PMS running offline, syncing seamlessly when power returns.
DM 20 Tanzanian hotel managers on LinkedIn searching 'Tanzania hotel PMS', offer free Pro trial for feedback; attend Tanzania Hotelkeepers Association meetup in Dar es Salaam; cold email from tourism directory with demo video.
Full-featured cloud PMS
No offline mode during blackouts
Specialized offline sync layer on top
Modern API
Requires constant internet/power
PWA offline caching tailored for outages
Data moat from cached PMS histories and Tanzania-specific outage patterns; first-mover lock-in via easy API integrations.
Tanzania tourism surged 25% post-COVID, but energy blackouts up 40%; cloud PMS adoption rising without offline solutions.
PMS API changes break integrations
Monitor APIs, offer custom templates for Pro users
Low awareness of offline need
Targeted LinkedIn outreach and free trials
Sync conflicts in multi-user
Timestamp-based merging and manual review
Success: 3 express interest in beta
Success: 2 active weekly users
Success: 50 signups, 5 paid
Success: 20% MoM growth
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