Shared pass across independent hills
Hypothetical. Not a client, not a result.
// The problem
Five independent ski hills in a region each sell a pass that few guests buy, and none of them wants a rival to hold the shared pass and its money.
// What we would build
One pass across the member hills, with each visit recorded on a private permissioned ledger every hill runs a node of, so a guest skis at any member hill and each hill is paid its share from the same record. If one association runs the pass and the hills trust it, a database is simpler, and we will build that.
// What is in it
- One pass and one guest account across every member hill
- Visits recorded at each hill's gates
- Revenue shares worked out from the shared record
- No hill can add or change visits alone
- Rules for joining and sharing agreed by the members
// Stack
- Next.js
- PostgreSQL
- Hyperledger Besu (private, permissioned)
- Access gate interfaces
- DigitalOcean
// estimate
- Build
- ≈ US$121,000 to US$185,000, delivered within 25 weeksCAD 172,300 to 263,400
- Hosting
- ≈ US$344 a monthCAD 490 a month
- Support
- ≈ US$2,500 a monthCAD 3,565 a month
Prices in your currency are estimates from today's Bank of Canada rate. All invoicing is in CAD or USD.
Timeline by milestone
- Discovery
- 2.9 to 3.4 weeks
- Architecture
- 0.4 weeks
- Design approved
- 3.9 to 6.9 weeks
- Core features
- 1.4 to 2.4 weeks
- Full build
- 0.9 to 1.9 weeks
- Devnet
- 2.9 to 4.9 weeks
- Testing and fixes
- 0.4 weeks
- Testnet
- 2.9 to 3.4 weeks
- Launch
- 0.9 to 1.4 weeks
- Mainnet
- 0.9 to 1.4 weeks
Outside our hands, and added to the calendar
- Interface access from your access gate vendor
- 1 to 4 weeks
How it is paid
- Deposit 20%
- CAD 34,460 to 52,680
- Discovery 2.5%
- CAD 4,307.50 to 6,585.00
- Architecture 6.7%
- CAD 11,544.10 to 17,647.80
- Design approved 2.5%
- CAD 4,307.50 to 6,585.00
- Core features 7.5%
- CAD 12,922.50 to 19,755.00
- Full build 5%
- CAD 8,615 to 13,170
- Devnet 20.2%
- CAD 34,804.60 to 53,206.80
- Testing and fixes 2.5%
- CAD 4,307.50 to 6,585.00
- Testnet 13.4%
- CAD 23,088.20 to 35,295.60
- Launch 2.5%
- CAD 4,307.50 to 6,585.00
- Mainnet 7.2%
- CAD 12,405.60 to 18,964.80
- Holdback, 30 days after launch (10%)
- CAD 17,230 to 26,340