# Project State

## Project Reference

See: .paul/PROJECT.md (updated 2026-05-20)

**Core value:** Android devs plot 200Hz+ multi-signal sensor data without frame drops
**Current focus:** v0.2.0 — Phase 4 LOD scratch optimization (deferred)

## Current Position

Milestone: v0.2.0
Phase: 3 of 4 — In Progress
Plan: .paul/phases/v0.2.0-plan.md
Status: In Progress
Last activity: 2026-05-20 — Phases 1-3 complete + build green. rememberMaterialChartTheme(), axis text labels (TextMeasurer), dynamic xWindowSeconds param, theme param on RealtimeChart. Fix: added compose.material3 to commonMain deps.

Progress:
- Milestone: [██████████] 100%
- Phase 6: [██████████] 100%

## Loop Position

```
PLAN ──▶ APPLY ──▶ UNIFY
  ✓        ✓        ✓     [v0.1.0 SHIPPED]
```

## Accumulated Context

### Decisions

| Decision | Phase | Impact |
|----------|-------|--------|
| Canvas custom rendering (no lib) | Init | Core architecture |
| Render/data decoupled withFrameNanos | Init | RenderLoop design |
| LoD min/max decimation | Init | SignalRenderer calls LodDecimator |
| compose.foundation added to commonMain deps | Phase 4 | Canvas + Modifier.background require it |
| iOS deferred | Init | commonMain only, no expect/actual beyond currentTimeMs |

### Deferred Issues

| Issue | Origin | Effort | Revisit |
|-------|--------|--------|---------|
| LodDecimator scratch array allocation per frame | Phase 2 | M | v0.2.0 |
| Double snapshot per frame in RealtimeChart | Phase 4 | M | v0.2.0 |
| Axis text labels | Phase 4 | M | v0.2.0 — needs TextMeasurer |
| iOS support | Init | L | Future milestone |

### Blockers/Concerns
None.

## Session Continuity

Last session: 2026-05-20
Stopped at: Phases 1-5 complete. 16 tests pass.
Next action: Phase 6 — 06-01 ChartTheme + Material3, 06-02 KDoc + README + publish config
Resume context: All source in chart-realtime/commonMain; demo app in app/

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*STATE.md — Updated after every significant action*