48 lines
1.9 KiB
Markdown
48 lines
1.9 KiB
Markdown
# Proposal: Mobile Stack Decision (Android/iOS)
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Status: draft
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Authors: Platform Team
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Owners: Architecture Lead, Mobile Lead
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Created: 2025-11-17
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Scope: spec
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Related: openspec/specs/architecture.md
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Summary
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- Decide between React Native + Expo vs Flutter for Android/iOS with full accessibility parity, strong privacy posture, and long-term maintainability.
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Motivation
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- Commit to a mobile stack that accelerates delivery while meeting a11y, compliance, and performance requirements across all features.
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Goals / Non‑Goals
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- Goals: select stack, document rationale, list enabling libraries/tooling, define migration/rollback path.
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- Non‑Goals: finalize design system visuals (handled in later proposals).
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Evaluation Criteria
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- Accessibility: VoiceOver/TalkBack parity; dynamic type; reduced motion; larger text support.
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- Performance: cold start, nav latency, list virtualization; p95 targets defined in architecture spec.
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- Ecosystem: first‑party support, community libs for a11y, storage, media, push, payments.
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- Compliance & Security: secure storage, network stack, logging redaction, crash reporting controls.
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- Developer Experience: CI/CD, hot reload, E2E testing, upgrade cadence.
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Options
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- React Native + Expo (with Reanimated, RN‑Skia optional, TypeScript, Detox/E2E)
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- Flutter (Dart, integration_test/E2E, Impeller renderer)
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Risks & Mitigations
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- Accessibility gaps → add native modules or platform adapters; enforce CI a11y gates.
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- Perf regressions → profiling budgets and regression tests.
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Rollout Plan
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- Pilot with Forum MVP screens; run A11y + perf checks; make decision.
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Test Plan
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- Prototype forum list/thread/post; run a11y audits; measure startup and interaction latencies.
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Acceptance Criteria
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- Decision recorded with rationale; pilot results included; sign‑off from a11y and compliance.
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Slash Commands
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- `/review areas=mobile,accessibility,security`
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- `/apply spec=openspec/specs/architecture.md`
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- `/archive link=<PR>`
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