Too many things for a single commit but in summary:

We got them data bytes computer majigs being transmitted to the display
and correctly parsed over there. Also seems to be fast. I won't touch
performance issues until I have this working and documented tho.

tui/internal/services/cdashdisplay.go

@@ -4,8 +4,10 @@ import (
 	"esdi/cdashdisplay"
 	helper "esdi/helpers"
 	"esdi/peripheral"
+	"esdi/telemetry"
 	"fmt"
 	"log/slog"
+	"sync/atomic"
 )
 
 type CDashService struct {
@@ -89,3 +91,21 @@ func (cds *CDashService) MoveWindow(idx int16, vec *helper.Vector) error {
 
 	return nil
 }
+
+func (cds *CDashService) StreamData(stream <-chan telemetry.TelemetryData) {
+	var isSending atomic.Bool
+
+	go func() {
+
+		for msg := range stream {
+			if isSending.Load() {
+				continue
+			}
+
+			isSending.Store(true)
+
+			cds.CDash.SendData(&msg)
+			isSending.Store(false)
+		}
+	}()
+}

tui/internal/services/telemetry.go

@@ -11,12 +11,14 @@ import (
 // It should hook to a data sink and handle it like iRacing, BeamNG, AC and so on
 type TelemetryService struct {
 	logger         *slog.Logger
+	cdash          *CDashService
 	ActiveProvider telemetry.TelemetryProvider
 }
 
-func NewTelemetryService(logger *slog.Logger) *TelemetryService {
+func NewTelemetryService(logger *slog.Logger, cdash *CDashService) *TelemetryService {
 	return &TelemetryService{
 		logger: logger,
+		cdash:  cdash,
 	}
 }
 
@@ -45,5 +47,9 @@ func (t *TelemetryService) SetProvider(provider string) *TelemetryService {
 
 func (t *TelemetryService) StartStream() <-chan telemetry.TelemetryData {
 	stream, _ := t.ActiveProvider.Stream()
+
+	// Somewhere around here we have to tell the device service to also send data
+	t.cdash.StreamData(stream)
+
 	return stream
 }

tui/tui.go

@@ -22,7 +22,8 @@ func NewControlPanel(logger *slog.Logger) *ControlPanel {
 	}
 
 	devService := services.NewCDashService(logger)
-	telemService := services.NewTelemetryService(logger).SetProvider("iRacing")
+	telemService := services.NewTelemetryService(logger, devService).
+		SetProvider("iRacing")
 	if telemService == nil {
 		panic("failed to create the telemetry service")
 	}