Live-operation product
SubTrack BH
A local-first Android workspace for operating a boarding-house internet subscription service.
- Role
- Founder & Lead Developer
- Status
- Active development · Live operation
- Year
- 2026
- Stack
- Kotlin · Jetpack Compose · Room · Firebase · WorkManager · Ktor
01 · Context
The problem
Subscriber names, packages, payments, expiry dates, balances and reconnections become unreliable when managed through memory, messages or separate records.
The response
SubTrack BH centralises the administration of Leo’s active Starlink service, which currently serves 29 subscribers. Room is the local source of truth, with Firebase services supporting the project’s remote-service direction.
02 · Contribution
What I built
- 01
Modelled subscribers, rooms, plans, devices, payments, expenses, reminders and subscription windows.
- 02
Separated the admin and subscriber experiences into distinct Android applications.
- 03
Added accounting, reporting, backup, PDF and sync-oriented foundations.
- 04
Designed the product around the actual workflow of operating the service.
03 · Implemented evidence
Current
capabilities.
04 · Engineering
Hard parts,
clear decisions.
Consistent account state
Payments, package duration, balances, expiry and reconnection rules must agree across screens instead of relying on a manually edited status label.
Admin/subscriber boundaries
The subscriber app must expose only account-safe, read-oriented functions while financial writes and business controls remain in the admin app.
Offline-first financial records
Local operation is essential during connectivity problems, while future synchronisation must avoid duplicate or conflicting financial records.
05 · Reflection
What I learned
Planned or still in development
- Production Lenco payment integration
- Provider webhook verification
- Complete subscriber invoices and payment history
- Expanded closing, reconciliation and asset-management interfaces
Private workspace inspected locally. Provider payments remain placeholders and are not presented as working.
Project access