A daemon that fronts haptic hardware behind a single gRPC interface. Backends register at runtime and advertise their own zones, parameter schemas, concurrency models, and calibration state, so clients discover capabilities and dispatch accordingly without hardcoding hardware-specific knowledge. Real backends today: OWO Skin (Windows, TENS vest), and the bHaptics family — TactSuit X40 vest plus per-arm TactSleeve and per-foot Tactosy (Windows, vibrotactile). This MVP ships with mock backends for each kind so the gRPC surface, event streaming, and concurrency model can be exercised on Mac without hardware. Backend enablement is descriptor-driven (Smited:Backends:Items[]), and a daemon-internal bodymap framework knows where each backend's zones sit on the user's body and refuses placements in manufacturer-mandated or smited-default forbidden regions.

git clone https://github.com/Quantumlyy/smited.git
cd smited
dotnet run --project src/Smited.Daemon

The daemon binds:

• gRPC on 127.0.0.1:7777 (h2c)
• Emergency-stop HTTP on 127.0.0.1:7778
• Admin UI on 127.0.0.1:7779 — open in browser to verify end-to-end

The startup banner shows all three:

╭─smited──────────────────────────────────────────────────╮
│ Listening   gRPC 127.0.0.1:7777 (h2c, reflection on)    │
│ Panic       POST http://127.0.0.1:7778/panic            │
│ Admin       http://127.0.0.1:7779/                      │
│ Backends    1 registered                                │
│ Body map    Not configured (warnings off)               │
│ Sensations  5 loaded                                    │
│ History     /Users/.../smited/history.db                │
╰─────────────────────────────────────────────────────────╯

Verify with grpcurl (install via brew install grpcurl):

grpcurl -plaintext localhost:7777 list                                         # smited.v1.SmitedService
grpcurl -plaintext localhost:7777 smited.v1.SmitedService/Health               # daemon_running=true
grpcurl -plaintext -d '{"sensation_name":"compile_error_mild","backend_id":"mock-owo"}' \
  localhost:7777 smited.v1.SmitedService/Trigger                               # accepted=true

The full grpcurl cheatsheet is in docs/grpcurl-cheatsheet.md.

The wire format is published at buf.build/quantumly-labs/smited and pinned to v0.1.0 for this build. The schema source lives in Quantumlyy/smited-schema. Generated C# is consumed via buf generate and committed under gen/csharp/ for hermetic builds — no buf install required to build the daemon.

./build.sh                              # restore + build + test
./build.sh --target Publish-OSX-arm64   # self-contained single-file binary in artifacts/

See docs/building.md for the full Cake target list.

• ARCHITECTURE.md — layer diagram, EventBus model, validation split, backend abstraction contract.
• docs/running.md — running on Mac, expected log output, smoke tests, Streamdeck panic-button setup.
• docs/building.md — Cake build script, publish targets, why Cake.
• docs/grpcurl-cheatsheet.md — example grpcurl invocations for every RPC.
• docs/adding-a-backend.md — how to add a new IHapticBackend implementation, including the descriptor + factory pattern.
• docs/body-map.md — bodymap framework, region taxonomy, and forbidden-region semantics.
• docs/owo.md — Windows OWO Skin setup, calibration, smoke-test runbook, TENS safety notes.
• docs/pishock.md — PiShock setup (cloud and LAN), AllowedOps semantics, sensation authoring, safety notes.
• docs/pishock-smoke.md — PiShock smoke-test runbook (scratch app + step-by-step verification).
• docs/bhaptics.md — Windows bHaptics setup (TactSuit, TactSleeve, Tactosy for Feet), smoke-test runbook, vibrotactile safety notes.
• docs/history.md — the daemon's SQLite history database: tables, queries, retention.
• docs/admin.md — the in-process Blazor Server admin UI on port 7779 (smoke-test surface).
• sensations/README.md — sensation file format reference.

This MVP covers capability discovery, sensation triggering, the four concurrency policies (REJECT_NEW, CANCEL_OLDEST, PRIORITY, QUEUE), event streaming, the /panic endpoint (latching circuit breaker with challenge-response rearm), the boot-time sensation library, descriptor-driven backend enablement (Smited:Backends:Items[] dispatched through IBackendFactory), a daemon-internal bodymap framework with manufacturer-mandated and smited-default forbidden-region enforcement, and a Blazor Server admin UI on port 7779 for end-to-end smoke testing. Three real backends ship today: the Windows-only OWO Skin backend in src/Smited.Daemon.Owo/ (wired against the official OWO C# SDK — for development, the canonical target is the OWO Visualizer downloadable from owogame.com/developers/; the MyOWO consumer app is the production path and requires a registered project ID + .owoauth from [email protected] — see docs/owo.md); the cross-platform PiShock backend in src/Smited.Daemon.Pishock/ with cloud and LAN transports (see docs/pishock.md and the smoke-test runbook); and the Windows bHaptics backend family in src/Smited.Daemon.Bhaptics/ wrapping the Bhaptics.Tac SDK1 NuGet for the TactSuit, TactSleeve, and Tactosy for Feet (see docs/bhaptics.md). The daemon is LAN/localhost only — no TLS, no auth.

See LICENSE.