Topics before profiles
The participation model begins with what someone wants to discuss, not a follower graph or personal brand.
07 / Mobile conversation product
Small scheduled conversations organized around topics, not profiles.
A mobile-first product with a deterministic scenario environment, pure domain packages, fake external services, and strict production boundaries.
Product brief
- Product
- Topicall
- Status
- In progress
- Target user
- People who want a small scheduled voice conversation about a topic without building a public profile or an audience.
- My role
- Product framing, mobile architecture, deterministic development environment, domain packages, adapters, verification, and release boundaries.
The problem
Most social products optimize feeds, profiles, and reach. Topicall explores whether a bounded topic and time can be enough context to create a useful conversation.
01 / Workflow
The product, end to end.
Follow the product from first input to a reviewable outcome.
- 01Choose a topic
- 02Join a scheduled room
- 03Review expectations
- 04Enter the conversation
- 05Close with a lightweight reflection
02 / Decisions
Architecture with a reason.
Expo · React Native · TypeScript · Pure domain packages · Fake clock · Deterministic adapters
Scenario-driven development
A fake clock and explicit adapters make timing, empty states, failures, and moderation boundaries reproducible.
Production is a separate gate
Development exports cannot quietly become real integrations; production adapters require explicit review.
Failure paths
What can go wrong is part of the product.
- Room does not reach the minimum size
- A participant loses connectivity
- Schedule changes across time zones
- Moderation or safety support is unavailable
Verification
What supports the claim.
- Pure domain and application tests
- iOS Simulator build
- Android emulator build
- Deterministic onboarding scenarios
Portfolio boundary
Complete enough to review. Honest enough to trust.
- In-progress mobile foundation
- Simulator validation is not physical-device acceptance
- External services are fake
- No live audio, account, moderation, or notification system is represented as complete