CUB-114: Update Pi 5 kiosk deployment for Go + React stack

backend/internal/handlers/material_finish_handler.go

@@ -1,34 +0,0 @@
-package handlers
-
-import (
-	"log/slog"
-	"net/http"
-
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/dtos"
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/repositories"
-)
-
-// MaterialFinishHandler handles requests for material finish lookup data.
-type MaterialFinishHandler struct {
-	repo *repositories.MaterialFinishRepository
-}
-
-// NewMaterialFinishHandler creates a MaterialFinishHandler with the given repository.
-func NewMaterialFinishHandler(repo *repositories.MaterialFinishRepository) *MaterialFinishHandler {
-	return &MaterialFinishHandler{repo: repo}
-}
-
-// List handles GET /api/finishes — returns all material finishes.
-func (h *MaterialFinishHandler) List(w http.ResponseWriter, r *http.Request) {
-	finishes, err := h.repo.GetAll(r.Context())
-	if err != nil {
-		slog.Error("failed to list finishes", "error", err)
-		writeJSON(w, http.StatusInternalServerError, dtos.ErrorResponse{
-			Error: "internal server error",
-			Code:  http.StatusInternalServerError,
-		})
-		return
-	}
-
-	writeJSON(w, http.StatusOK, dtos.SingleResponse{Data: finishes})
-}

backend/internal/handlers/material_modifier_handler.go

@@ -1,34 +0,0 @@
-package handlers
-
-import (
-	"log/slog"
-	"net/http"
-
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/dtos"
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/repositories"
-)
-
-// MaterialModifierHandler handles requests for material modifier lookup data.
-type MaterialModifierHandler struct {
-	repo *repositories.MaterialModifierRepository
-}
-
-// NewMaterialModifierHandler creates a MaterialModifierHandler with the given repository.
-func NewMaterialModifierHandler(repo *repositories.MaterialModifierRepository) *MaterialModifierHandler {
-	return &MaterialModifierHandler{repo: repo}
-}
-
-// List handles GET /api/modifiers — returns all material modifiers.
-func (h *MaterialModifierHandler) List(w http.ResponseWriter, r *http.Request) {
-	modifiers, err := h.repo.GetAll(r.Context())
-	if err != nil {
-		slog.Error("failed to list modifiers", "error", err)
-		writeJSON(w, http.StatusInternalServerError, dtos.ErrorResponse{
-			Error: "internal server error",
-			Code:  http.StatusInternalServerError,
-		})
-		return
-	}
-
-	writeJSON(w, http.StatusOK, dtos.SingleResponse{Data: modifiers})
-}

backend/internal/repositories/material_finish_repository.go

@@ -1,50 +0,0 @@
-package repositories
-
-import (
-	"context"
-
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/models"
-	"github.com/jackc/pgx/v5/pgxpool"
-)
-
-// MaterialFinishRepository handles database queries for material finishes.
-type MaterialFinishRepository struct {
-	pool *pgxpool.Pool
-}
-
-// NewMaterialFinishRepository creates a MaterialFinishRepository backed by the given pool.
-func NewMaterialFinishRepository(pool *pgxpool.Pool) *MaterialFinishRepository {
-	return &MaterialFinishRepository{pool: pool}
-}
-
-// GetAll returns all material finishes ordered by name.
-func (r *MaterialFinishRepository) GetAll(ctx context.Context) ([]models.MaterialFinish, error) {
-	rows, err := r.pool.Query(ctx, `
-		SELECT id, name, description, created_at, updated_at
-		FROM material_finishes
-		ORDER BY name
-	`)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-
-	var finishes []models.MaterialFinish
-	for rows.Next() {
-		var f models.MaterialFinish
-		if err := rows.Scan(
-			&f.ID, &f.Name, &f.Description,
-			&f.CreatedAt, &f.UpdatedAt,
-		); err != nil {
-			return nil, err
-		}
-		finishes = append(finishes, f)
-	}
-	if err := rows.Err(); err != nil {
-		return nil, err
-	}
-	if finishes == nil {
-		finishes = []models.MaterialFinish{}
-	}
-	return finishes, nil
-}

backend/internal/repositories/material_modifier_repository.go

@@ -1,50 +0,0 @@
-package repositories
-
-import (
-	"context"
-
-	"github.com/CubeCraft-Creations/Extrudex/backend/internal/models"
-	"github.com/jackc/pgx/v5/pgxpool"
-)
-
-// MaterialModifierRepository handles database queries for material modifiers.
-type MaterialModifierRepository struct {
-	pool *pgxpool.Pool
-}
-
-// NewMaterialModifierRepository creates a MaterialModifierRepository backed by the given pool.
-func NewMaterialModifierRepository(pool *pgxpool.Pool) *MaterialModifierRepository {
-	return &MaterialModifierRepository{pool: pool}
-}
-
-// GetAll returns all material modifiers ordered by name.
-func (r *MaterialModifierRepository) GetAll(ctx context.Context) ([]models.MaterialModifier, error) {
-	rows, err := r.pool.Query(ctx, `
-		SELECT id, name, description, created_at, updated_at
-		FROM material_modifiers
-		ORDER BY name
-	`)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-
-	var modifiers []models.MaterialModifier
-	for rows.Next() {
-		var m models.MaterialModifier
-		if err := rows.Scan(
-			&m.ID, &m.Name, &m.Description,
-			&m.CreatedAt, &m.UpdatedAt,
-		); err != nil {
-			return nil, err
-		}
-		modifiers = append(modifiers, m)
-	}
-	if err := rows.Err(); err != nil {
-		return nil, err
-	}
-	if modifiers == nil {
-		modifiers = []models.MaterialModifier{}
-	}
-	return modifiers, nil
-}

backend/internal/router/router.go

@@ -45,8 +45,6 @@ func New(cfg *config.Config, dbPool *pgxpool.Pool, sseBC *sse.Broadcaster) chi.R
 
 	// ── Repositories ──────────────────────────────────────────────────────
 	materialRepo := repositories.NewMaterialRepository(dbPool)
-	finishRepo := repositories.NewMaterialFinishRepository(dbPool)
-	modifierRepo := repositories.NewMaterialModifierRepository(dbPool)
 	filamentRepo := repositories.NewFilamentRepository(dbPool)
 	printerRepo := repositories.NewPrinterRepository(dbPool)
 	printJobRepo := repositories.NewPrintJobRepository(dbPool)
@@ -59,8 +57,6 @@ func New(cfg *config.Config, dbPool *pgxpool.Pool, sseBC *sse.Broadcaster) chi.R
 
 	// ── Handlers ──────────────────────────────────────────────────────────
 	materialHandler := handlers.NewMaterialHandler(materialRepo)
-	finishHandler := handlers.NewMaterialFinishHandler(finishRepo)
-	modifierHandler := handlers.NewMaterialModifierHandler(modifierRepo)
 	filamentHandler := handlers.NewFilamentHandler(filamentService)
 	printerHandler := handlers.NewPrinterHandler(printerService)
 	printJobHandler := handlers.NewPrintJobHandler(printJobService)
@@ -70,8 +66,6 @@ func New(cfg *config.Config, dbPool *pgxpool.Pool, sseBC *sse.Broadcaster) chi.R
 	r.Route("/api", func(r chi.Router) {
 		r.Use(middleware.Timeout(60 * time.Second))
 		r.Get("/materials", materialHandler.List)
-		r.Get("/finishes", finishHandler.List)
-		r.Get("/modifiers", modifierHandler.List)
 
 		r.Route("/filaments", func(r chi.Router) {
 			r.Get("/", filamentHandler.List)

deploy.sh

@@ -1,10 +1,10 @@
 #!/bin/bash
 set -e
 
-echo "🔧 Deploying Extrudex Docker runtime..."
+echo "🔧 Deploying Extrudex (Go + React) on Raspberry Pi..."
 
 # Check if Docker Compose is available
-if ! command -v docker-compose &> /dev/null && ! docker compose version &> /dev/null; then
+if ! docker compose version &>/dev/null && ! command -v docker-compose &>/dev/null; then
     echo "❌ Docker Compose is not installed"
     exit 1
 fi
@@ -14,18 +14,21 @@ if command -v docker-compose &> /dev/null; then
     COMPOSE_CMD="docker-compose"
 fi
 
-echo "📦 Building and starting services..."
+echo "📦 Building and starting Go backend + React frontend + PostgreSQL..."
 $COMPOSE_CMD -f docker-compose.dev.yml up -d --build
 
 echo "⏳ Waiting for services to become healthy..."
-sleep 15
+sleep 10
 
 echo "✅ Deployment complete!"
 echo ""
 echo "Services running:"
 echo "  • PostgreSQL:    localhost:5433"
-echo "  • Extrudex API: http://localhost:5080"
+echo "  • Extrudex API (Go):   http://localhost:5080"
-echo "  • Extrudex Web: http://localhost:5081"
+echo "  • Extrudex Web (React): http://localhost:5081"
+echo ""
+echo "Barcode scanner: HID keyboard input — focus any text field to start scanning."
+echo "Kiosk mode: Chromium auto-starts on boot via systemd (extrudex-kiosk.service)."
 echo ""
 echo "To view logs:"
 echo "  $COMPOSE_CMD -f docker-compose.dev.yml logs -f"

docker-compose.dev.yml

@@ -28,13 +28,10 @@ services:
     ports:
       - "5080:8080"
     environment:
-      - ASPNETCORE_ENVIRONMENT=Development
+      - DATABASE_URL=postgres://extrudex:changeme@extrudex-db:5432/extrudex?sslmode=disable
-      - ASPNETCORE_URLS=http://+:8080
+      - PORT=8080
-      - EXTRUDEX_DB_HOST=extrudex-db
+      - CORS_ORIGIN=*
-      - EXTRUDEX_DB_PORT=5432
+      - LOG_LEVEL=info
-      - EXTRUDEX_DB_NAME=extrudex
-      - EXTRUDEX_DB_USER=extrudex
-      - EXTRUDEX_DB_PASSWORD=changeme
     depends_on:
       extrudex-db:
         condition: service_healthy
@@ -44,7 +41,7 @@ services:
       interval: 30s
       timeout: 10s
       retries: 3
-      start_period: 40s
+      start_period: 15s
     networks:
       - extrudex-network
 

docs/PI-KIOSK-SETUP.md

@@ -0,0 +1,168 @@
+# Pi 5 Kiosk Setup — Extrudex (Go + React)
+
+## Prerequisites
+
+- Raspberry Pi 5 (4 GB or 8 GB)
+- MicroSD card (32 GB minimum, Class 10+)
+- HDMI touchscreen display
+- USB barcode scanner (HID keyboard mode)
+- Power supply (27W USB-C recommended)
+
+## One-Line Setup
+
+```bash
+# 1. Install Raspberry Pi OS (64-bit, Desktop)
+# 2. Enable SSH and VNC
+# 3. Run the automated bootstrap
+curl -sSL https://raw.githubusercontent.com/CubeCraft-Creations/Extrudex/dev/scripts/pi-bootstrap.sh | bash
+```
+
+Or follow the manual steps below.
+
+## Manual Setup
+
+### 1. Install Docker
+
+```bash
+curl -fsSL https://get.docker.com | sh
+sudo usermod -aG docker pi
+```
+
+Log out and back in for group changes to take effect.
+
+### 2. Clone and deploy
+
+```bash
+cd /home/pi
+git clone https://code.cubecraftcreations.com/CubeCraft-Creations/Extrudex.git
+cd Extrudex
+git checkout dev
+
+# Run the deploy script
+chmod +x deploy.sh
+./deploy.sh
+```
+
+### 3. Verify services
+
+```bash
+docker compose -f docker-compose.dev.yml ps
+# All three services should be "Up"
+```
+
+Check the health endpoint:
+```bash
+curl http://localhost:5080/health
+# Expected: {"status":"ok","db_connected":true,"timestamp":"..."}
+```
+
+### 4. Configure kiosk auto-start
+
+```bash
+# Enable the Docker stack service (starts on boot)
+sudo cp systemd/extrudex.service /etc/systemd/system/
+sudo systemctl daemon-reload
+sudo systemctl enable extrudex.service
+
+# Enable the kiosk service (starts Chromium after Docker stack)
+sudo cp systemd/extrudex-kiosk.service /etc/systemd/system/
+sudo systemctl daemon-reload
+sudo systemctl enable extrudex-kiosk.service
+```
+
+### 5. Configure display server
+
+For Pi 5, Raspberry Pi OS uses Wayland by default. If you encounter
+X11-specific issues, switch to X11 in raspi-config (Advanced Options →
+Resolution → X11).
+
+The kiosk service supports both Wayland and X11 display servers.
+
+### 6. Touchscreen calibration (if needed)
+
+```bash
+# Install calibration tools
+sudo apt install -y xinput-calibrator
+
+# Run calibration, note the device ID and parameters
+xinput_calibrator
+```
+
+Add the calibration to `~/.config/labwc/labwc.conf` or `/etc/X11/xorg.conf.d/`
+as appropriate for your display server.
+
+## USB Barcode Scanner
+
+The USB barcode scanner works as a HID keyboard device — it types scanned
+codes followed by an Enter keypress. No driver configuration is needed.
+
+On the React frontend, the search input auto-focuses on page load and
+will capture barcode input immediately. After a touch on another element,
+tap the search field again to re-focus.
+
+## Auto-Refresh on Wake
+
+The React app polls the SSE endpoint every 30 seconds for real-time
+updates. When the Pi wakes from sleep, the next poll will immediately
+sync the UI.
+
+The kiosk service has `Restart=always` and `RestartSec=10`, so Chromium
+will restart within 10 seconds of any crash or power cycle.
+
+## Touch Gestures
+
+Chromium is launched with `--touch-events=enabled` and `--enable-pinch`
+for native touch gesture support:
+- **Tap** — click/submit
+- **Two-finger scroll** — page scrolling
+- **Pinch** — zoom (disabled in kiosk mode by default; enable if needed)
+
+## Troubleshooting
+
+### Services not starting
+```bash
+sudo systemctl status extrudex
+sudo systemctl status extrudex-kiosk
+docker compose -f docker-compose.dev.yml logs
+```
+
+### Kiosk shows blank page
+- Ensure Docker stack is running: `docker compose ps`
+- Check nginx is serving the React build: `curl http://localhost:5081`
+- Check Chromium logs: `journalctl -u extrudex-kiosk -n 50`
+
+### Barcode not working
+- Verify scanner is in HID keyboard mode (most USB scanners default to this)
+- Open a text field and scan — you should see digits appear
+- Check with `dmesg | grep -i usb` for device enumeration
+
+### PostgreSQL connection refused
+```bash
+docker compose -f docker-compose.dev.yml restart extrudex-db
+# Wait 15 seconds, then check health
+curl http://localhost:5080/health
+```
+
+## Architecture
+
+```
+┌──────────────────────────────────────────────┐
+│  Pi 5 (Raspberry Pi OS 64-bit)               │
+│                                              │
+│  ┌─────────────┐  ┌──────────┐  ┌─────────┐ │
+│  │ Chromium    │  │  Nginx   │  │  Go     │ │
+│  │ Kiosk       │→│  (React) │→│  API    │ │
+│  │ :5081       │  │  :5080   │  │  :8080  │ │
+│  └─────────────┘  └──────────┘  └────┬────┘ │
+│                                       │      │
+│                              ┌────────▼────┐ │
+│                              │  PostgreSQL │ │
+│                              │  :5432      │ │
+│                              └─────────────┘ │
+│                                              │
+│  ┌──────────┐                                │
+│  │  USB     │                                │
+│  │ Scanner  │ → HID keyboard → Browser       │
+│  └──────────┘                                │
+└──────────────────────────────────────────────┘
+```

frontend/nginx.conf

@@ -10,7 +10,7 @@ server {
     }
 
     location /api/ {
-        proxy_pass http://backend:8080/api/;
+        proxy_pass http://extrudex-api:8080/api/;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection 'upgrade';

frontend/src/components/FilamentForm.tsx

@@ -1,360 +0,0 @@
-import { useState, useEffect, useMemo } from 'react'
-import { X, Save, AlertCircle } from 'lucide-react'
-import ColorSwatch from './ColorSwatch'
-import { createFilament, updateFilament, fetchMaterialBases, fetchMaterialFinishes, fetchMaterialModifiers } from '../services/filamentService'
-import type { FilamentSpool, MaterialBase, MaterialFinish, MaterialModifier } from '../types/filament'
-import { useQuery } from '@tanstack/react-query'
-
-interface FilamentFormProps {
-  mode: 'create' | 'edit'
-  initialData?: FilamentSpool | null
-  onClose: () => void
-  onSuccess: () => void
-}
-
-interface FormErrors {
-  [key: string]: string
-}
-
-export default function FilamentForm({ mode, initialData, onClose, onSuccess }: FilamentFormProps) {
-  const [name, setName] = useState('')
-  const [materialBaseId, setMaterialBaseId] = useState('')
-  const [materialFinishId, setMaterialFinishId] = useState('1')
-  const [materialModifierId, setMaterialModifierId] = useState('')
-  const [colorHex, setColorHex] = useState('#3B82F6')
-  const [brand, setBrand] = useState('')
-  const [diameterMm, setDiameterMm] = useState('1.75')
-  const [initialGrams, setInitialGrams] = useState('')
-  const [remainingGrams, setRemainingGrams] = useState('')
-  const [costUsd, setCostUsd] = useState('')
-  const [lowStockThreshold, setLowStockThreshold] = useState('50')
-  const [notes, setNotes] = useState('')
-  const [barcode, setBarcode] = useState('')
-  const [errors, setErrors] = useState<FormErrors>({})
-  const [submitting, setSubmitting] = useState(false)
-  const [submitError, setSubmitError] = useState<string | null>(null)
-
-  const { data: materials } = useQuery({
-    queryKey: ['materials'],
-    queryFn: fetchMaterialBases,
-    staleTime: Infinity,
-  })
-  const { data: finishes } = useQuery({
-    queryKey: ['finishes'],
-    queryFn: fetchMaterialFinishes,
-    staleTime: Infinity,
-  })
-  const { data: modifiers } = useQuery({
-    queryKey: ['modifiers'],
-    queryFn: fetchMaterialModifiers,
-    staleTime: Infinity,
-  })
-
-  useEffect(() => {
-    if (mode === 'edit' && initialData) {
-      setName(initialData.name ?? '')
-      setMaterialBaseId(String(initialData.material_base_id ?? ''))
-      setMaterialFinishId(String(initialData.material_finish_id ?? '1'))
-      setMaterialModifierId(initialData.material_modifier_id ? String(initialData.material_modifier_id) : '')
-      setColorHex(initialData.color_hex ?? '#3B82F6')
-      setBrand(initialData.brand ?? '')
-      setDiameterMm(String(initialData.diameter_mm ?? 1.75))
-      setInitialGrams(String(initialData.initial_grams ?? ''))
-      setRemainingGrams(String(initialData.remaining_grams ?? ''))
-      setCostUsd(initialData.cost_usd != null ? String(initialData.cost_usd) : '')
-      setLowStockThreshold(String(initialData.low_stock_threshold_grams ?? 50))
-      setNotes(initialData.notes ?? '')
-      setBarcode(initialData.barcode ?? '')
-    }
-  }, [mode, initialData])
-
-  const colorHexValid = useMemo(() => {
-    return /^#[0-9A-Fa-f]{6}$/.test(colorHex)
-  }, [colorHex])
-
-  function validate(): FormErrors {
-    const e: FormErrors = {}
-    if (!name.trim()) e.name = 'Name is required'
-    if (!materialBaseId) e.material_base_id = 'Material Base is required'
-    if (!materialFinishId) e.material_finish_id = 'Material Finish is required'
-    if (!colorHexValid) e.color_hex = 'Enter a valid hex color (e.g., #FF0000)'
-    if (!initialGrams || Number(initialGrams) <= 0) e.initial_grams = 'Must be > 0'
-    if (remainingGrams === '' || Number(remainingGrams) < 0) e.remaining_grams = 'Must be >= 0'
-    if (Number(remainingGrams) > Number(initialGrams)) e.remaining_grams = 'Cannot exceed Initial Grams'
-    if (costUsd && Number(costUsd) < 0) e.cost_usd = 'Must be >= 0'
-    if (!diameterMm || Number(diameterMm) <= 0) e.diameter_mm = 'Must be > 0'
-    if (!lowStockThreshold || Number(lowStockThreshold) < 0) e.low_stock_threshold_grams = 'Must be >= 0'
-    return e
-  }
-
-  async function handleSubmit(e: React.FormEvent) {
-    e.preventDefault()
-    setSubmitError(null)
-    const validation = validate()
-    if (Object.keys(validation).length > 0) {
-      setErrors(validation)
-      return
-    }
-    setErrors({})
-    setSubmitting(true)
-
-    const payload: Record<string, unknown> = {
-      name: name.trim(),
-      material_base_id: Number(materialBaseId),
-      material_finish_id: Number(materialFinishId),
-      color_hex: colorHex,
-      initial_grams: Number(initialGrams),
-      remaining_grams: Number(remainingGrams),
-      diameter_mm: Number(diameterMm),
-      low_stock_threshold_grams: Number(lowStockThreshold),
-    }
-
-    if (materialModifierId) payload.material_modifier_id = Number(materialModifierId)
-    if (brand.trim()) payload.brand = brand.trim()
-    if (costUsd) payload.cost_usd = Number(costUsd)
-    if (notes.trim()) payload.notes = notes.trim()
-    if (barcode.trim()) payload.barcode = barcode.trim()
-
-    try {
-      if (mode === 'edit' && initialData) {
-        await updateFilament(initialData.id, payload)
-      } else {
-        await createFilament(payload)
-      }
-      onSuccess()
-      onClose()
-    } catch (err: any) {
-      setSubmitError(err?.response?.data?.error || 'Failed to save spool. Please try again.')
-    } finally {
-      setSubmitting(false)
-    }
-  }
-
-  return (
-    <div className="fixed inset-0 z-50 flex items-start justify-center sm:items-center bg-black/60 backdrop-blur-sm p-4 overflow-y-auto">
-      <div className="w-full max-w-2xl rounded-xl bg-slate-800 border border-slate-700 shadow-2xl overflow-hidden my-4">
-        {/* Header */}
-        <div className="flex items-center justify-between px-6 py-4 border-b border-slate-700">
-          <h3 className="text-lg font-semibold text-slate-100">
-            {mode === 'edit' ? 'Edit Filament Spool' : 'Add Filament Spool'}
-          </h3>
-          <button
-            onClick={onClose}
-            className="p-1.5 rounded-lg text-slate-400 hover:text-slate-100 hover:bg-slate-700 transition-colors"
-            type="button"
-            aria-label="Close"
-          >
-            <X size={18} />
-          </button>
-        </div>
-
-        {/* Error banner */}
-        {submitError && (
-          <div className="mx-6 mt-4 flex items-start gap-2 rounded-lg bg-red-900/30 border border-red-700 px-4 py-3 text-sm text-red-300">
-            <AlertCircle size={16} className="shrink-0 mt-0.5" />
-            <span>{submitError}</span>
-          </div>
-        )}
-
-        {/* Form */}
-        <form onSubmit={handleSubmit} className="px-6 py-4 space-y-5">
-          {/* Row 1: Name + Brand */}
-          <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Name <span className="text-red-400">*</span></label>
-              <input
-                type="text"
-                value={name}
-                onChange={e => setName(e.target.value)}
-                className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 ${errors.name ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-                placeholder="e.g. Sunlu PLA Silk Red"
-              />
-              {errors.name && <p className="mt-1 text-xs text-red-400">{errors.name}</p>}
-            </div>
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Brand</label>
-              <input
-                type="text"
-                value={brand}
-                onChange={e => setBrand(e.target.value)}
-                className="w-full rounded-lg bg-slate-900 border border-slate-600 px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 focus:ring-emerald-500"
-                placeholder="e.g. Hatchbox"
-              />
-            </div>
-          </div>
-
-          {/* Row 2: Material Base + Finish + Modifier */}
-          <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Material Base <span className="text-red-400">*</span></label>
-              <select
-                value={materialBaseId}
-                onChange={e => setMaterialBaseId(e.target.value)}
-                className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 ${errors.material_base_id ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-              >
-                <option value="">Select…</option>
-                {materials?.map((m: MaterialBase) => (
-                  <option key={m.id} value={m.id}>{m.name}</option>
-                ))}
-              </select>
-              {errors.material_base_id && <p className="mt-1 text-xs text-red-400">{errors.material_base_id}</p>}
-            </div>
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Finish <span className="text-red-400">*</span></label>
-              <select
-                value={materialFinishId}
-                onChange={e => setMaterialFinishId(e.target.value)}
-                className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 ${errors.material_finish_id ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-              >
-                {finishes?.map((f: MaterialFinish) => (
-                  <option key={f.id} value={f.id}>{f.name}</option>
-                ))}
-              </select>
-              {errors.material_finish_id && <p className="mt-1 text-xs text-red-400">{errors.material_finish_id}</p>}
-            </div>
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Modifier</label>
-              <select
-                value={materialModifierId}
-                onChange={e => setMaterialModifierId(e.target.value)}
-                className="w-full rounded-lg bg-slate-900 border border-slate-600 px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 focus:ring-emerald-500"
-              >
-                <option value="">None</option>
-                {modifiers?.map((m: MaterialModifier) => (
-                  <option key={m.id} value={m.id}>{m.name}</option>
-                ))}
-              </select>
-            </div>
-          </div>
-
-          {/* Row 3: Color + Diameter */}
-          <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Color <span className="text-red-400">*</span></label>
-              <div className="flex items-center gap-3">
-                <input
-                  type="color"
-                  value={colorHex}
-                  onChange={e => setColorHex(e.target.value)}
-                  className="h-10 w-14 rounded border border-slate-600 bg-slate-900 cursor-pointer"
-                />
-                <div className="flex-1">
-                  <input
-                    type="text"
-                    value={colorHex}
-                    onChange={e => setColorHex(e.target.value)}
-                    className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 font-mono uppercase focus:outline-none focus:ring-2 ${errors.color_hex ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-                    placeholder="#FF0000"
-                    maxLength={7}
-                  />
-                </div>
-                <ColorSwatch colorHex={colorHex} size={32} />
-              </div>
-              {errors.color_hex && <p className="mt-1 text-xs text-red-400">{errors.color_hex}</p>}
-            </div>
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Diameter (mm) <span className="text-red-400">*</span></label>
-              <input
-                type="number"
-                step="0.01"
-                value={diameterMm}
-                onChange={e => setDiameterMm(e.target.value)}
-                className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 ${errors.diameter_mm ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-              />
-              {errors.diameter_mm && <p className="mt-1 text-xs text-red-400">{errors.diameter_mm}</p>}
-            </div>
-          </div>
-
-          {/* Row 4: Grams */}
-          <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Initial Grams <span className="text-red-400">*</span></label>
-              <input
-                type="number"
-                value={initialGrams}
-                onChange={e => setInitialGrams(e.target.value)}
-                className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 ${errors.initial_grams ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-              />
-              {errors.initial_grams && <p className="mt-1 text-xs text-red-400">{errors.initial_grams}</p>}
-            </div>
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Remaining Grams <span className="text-red-400">*</span></label>
-              <input
-                type="number"
-                value={remainingGrams}
-                onChange={e => setRemainingGrams(e.target.value)}
-                className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 ${errors.remaining_grams ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-              />
-              {errors.remaining_grams && <p className="mt-1 text-xs text-red-400">{errors.remaining_grams}</p>}
-            </div>
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Cost (USD)</label>
-              <input
-                type="number"
-                step="0.01"
-                value={costUsd}
-                onChange={e => setCostUsd(e.target.value)}
-                className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 ${errors.cost_usd ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-              />
-            </div>
-          </div>
-
-          {/* Row 5: Threshold + Barcode */}
-          <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Low Stock Threshold (g) <span className="text-red-400">*</span></label>
-              <input
-                type="number"
-                value={lowStockThreshold}
-                onChange={e => setLowStockThreshold(e.target.value)}
-                className={`w-full rounded-lg bg-slate-900 border px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 ${errors.low_stock_threshold_grams ? 'border-red-500 focus:ring-red-500' : 'border-slate-600 focus:ring-emerald-500'}`}
-              />
-              {errors.low_stock_threshold_grams && <p className="mt-1 text-xs text-red-400">{errors.low_stock_threshold_grams}</p>}
-            </div>
-            <div>
-              <label className="block text-sm font-medium text-slate-300 mb-1">Barcode</label>
-              <input
-                type="text"
-                value={barcode}
-                onChange={e => setBarcode(e.target.value)}
-                className="w-full rounded-lg bg-slate-900 border border-slate-600 px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 focus:ring-emerald-500"
-                placeholder="e.g. 123456789012"
-              />
-            </div>
-          </div>
-
-          {/* Notes */}
-          <div>
-            <label className="block text-sm font-medium text-slate-300 mb-1">Notes</label>
-            <textarea
-              rows={3}
-              value={notes}
-              onChange={e => setNotes(e.target.value)}
-              className="w-full rounded-lg bg-slate-900 border border-slate-600 px-3 py-2.5 text-sm text-slate-100 focus:outline-none focus:ring-2 focus:ring-emerald-500 resize-y"
-              placeholder="Print temperature tips, storage notes, etc."
-            />
-          </div>
-
-          {/* Footer actions */}
-          <div className="flex justify-end gap-3 pt-2">
-            <button
-              type="button"
-              onClick={onClose}
-              className="rounded-lg bg-slate-700 px-4 py-2.5 text-sm font-medium text-slate-200 hover:bg-slate-600 transition-colors"
-            >
-              Cancel
-            </button>
-            <button
-              type="submit"
-              disabled={submitting}
-              className="inline-flex items-center gap-2 rounded-lg bg-emerald-600 px-4 py-2.5 text-sm font-semibold text-white hover:bg-emerald-500 active:bg-emerald-700 disabled:opacity-50 transition-colors"
-            >
-              <Save size={16} />
-              {submitting ? 'Saving…' : mode === 'edit' ? 'Update Spool' : 'Create Spool'}
-            </button>
-          </div>
-        </form>
-      </div>
-    </div>
-  )
-}

frontend/src/pages/InventoryPage.tsx

@@ -2,7 +2,6 @@ import { useState, useMemo } from 'react'
 import { useQuery } from '@tanstack/react-query'
 import { Search, Filter, ChevronLeft, ChevronRight, Trash2, Pencil, Plus, AlertTriangle } from 'lucide-react'
 import ColorSwatch from '../components/ColorSwatch'
-import FilamentForm from '../components/FilamentForm'
 import { fetchFilaments, deleteFilament } from '../services/filamentService'
 import type { FilamentSpool, FilamentFilter } from '../types/filament'
 
@@ -20,9 +19,6 @@ export default function InventoryPage() {
   const [sortDir, setSortDir] = useState<SortDir>('asc')
   const [page, setPage] = useState(0)
   const [deleteId, setDeleteId] = useState<number | null>(null)
-  const [formOpen, setFormOpen] = useState(false)
-  const [formMode, setFormMode] = useState<'create' | 'edit'>('create')
-  const [formInitial, setFormInitial] = useState<FilamentSpool | null>(null)
 
   const filter: FilamentFilter = useMemo(() => ({
     material: material || undefined,
@@ -83,10 +79,7 @@ export default function InventoryPage() {
           <h2 className="text-xl font-bold text-slate-100">Filament Inventory</h2>
           <p className="text-sm text-slate-400">{total} spool(s) total</p>
         </div>
-        <button
+        <button className="inline-flex items-center gap-2 rounded-lg bg-emerald-600 px-4 py-2 text-sm font-semibold text-white hover:bg-emerald-500 active:bg-emerald-700 transition-colors">
-          onClick={() => { setFormMode('create'); setFormInitial(null); setFormOpen(true) }}
-          className="inline-flex items-center gap-2 rounded-lg bg-emerald-600 px-4 py-2 text-sm font-semibold text-white hover:bg-emerald-500 active:bg-emerald-700 transition-colors"
-        >
           <Plus size={16} /> Add Spool
         </button>
       </div>
@@ -215,11 +208,7 @@ export default function InventoryPage() {
                       </td>
                       <td className="px-4 py-3 text-right">
                         <div className="flex items-center justify-end gap-2">
-                          <button
+                          <button className="p-1.5 rounded hover:bg-slate-600 text-slate-400 hover:text-blue-400 transition-colors" title="Edit">
-                            onClick={() => { setFormMode('edit'); setFormInitial(spool); setFormOpen(true) }}
-                            className="p-1.5 rounded hover:bg-slate-600 text-slate-400 hover:text-blue-400 transition-colors"
-                            title="Edit"
-                          >
                             <Pencil size={14} />
                           </button>
                           <button
@@ -274,10 +263,7 @@ export default function InventoryPage() {
                   </div>
 
                   <div className="flex items-center justify-end gap-2 pt-1">
-                    <button
+                    <button className="flex items-center gap-1 rounded-md bg-slate-700 px-3 py-1.5 text-xs font-medium text-slate-200 hover:bg-slate-600">
-                      onClick={() => { setFormMode('edit'); setFormInitial(spool); setFormOpen(true) }}
-                      className="flex items-center gap-1 rounded-md bg-slate-700 px-3 py-1.5 text-xs font-medium text-slate-200 hover:bg-slate-600"
-                    >
                       <Pencil size={12} /> Edit
                     </button>
                     <button
@@ -318,16 +304,6 @@ export default function InventoryPage() {
         </>
       )}
 
-      {/* Add/Edit Form Modal */}
-      {formOpen && (
-        <FilamentForm
-          mode={formMode}
-          initialData={formInitial}
-          onClose={() => setFormOpen(false)}
-          onSuccess={() => refetch()}
-        />
-      )}
-
       {/* Delete confirmation modal */}
       {deleteId !== null && (
         <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm p-4">

frontend/src/services/filamentService.ts

@@ -1,5 +1,5 @@
 import axios from 'axios'
-import type { FilamentSpool, ListResponse, FilamentFilter, MaterialBase, MaterialFinish, MaterialModifier } from '../types/filament'
+import type { FilamentSpool, ListResponse, FilamentFilter } from '../types/filament'
 
 const API_BASE = '/api'
 
@@ -19,31 +19,6 @@ export async function fetchFilaments(filter: FilamentFilter): Promise<ListRespon
   return res.data
 }
 
-export async function createFilament(payload: Partial<FilamentSpool>): Promise<FilamentSpool> {
-  const res = await axios.post<{ data: FilamentSpool }>(`${API_BASE}/filaments`, payload)
-  return res.data.data
-}
-
-export async function updateFilament(id: number, payload: Partial<FilamentSpool>): Promise<FilamentSpool> {
-  const res = await axios.put<{ data: FilamentSpool }>(`${API_BASE}/filaments/${id}`, payload)
-  return res.data.data
-}
-
 export async function deleteFilament(id: number): Promise<void> {
   await axios.delete(`${API_BASE}/filaments/${id}`)
 }
-
-export async function fetchMaterialBases(): Promise<MaterialBase[]> {
-  const res = await axios.get<{ data: MaterialBase[] }>(`${API_BASE}/materials`)
-  return res.data.data
-}
-
-export async function fetchMaterialFinishes(): Promise<MaterialFinish[]> {
-  const res = await axios.get<{ data: MaterialFinish[] }>(`${API_BASE}/finishes`)
-  return res.data.data
-}
-
-export async function fetchMaterialModifiers(): Promise<MaterialModifier[]> {
-  const res = await axios.get<{ data: MaterialModifier[] }>(`${API_BASE}/modifiers`)
-  return res.data.data
-}

systemd/extrudex-kiosk.service

@@ -0,0 +1,36 @@
+[Unit]
+Description=Extrudex Kiosk (Chromium, Go + React frontend)
+After=network-online.target extrudex.service
+Requires=extrudex.service
+
+[Service]
+Type=simple
+User=pi
+Group=pi
+Environment=DISPLAY=:0
+Environment=XAUTHORITY=/home/pi/.Xauthority
+WorkingDirectory=/home/pi
+
+ExecStart=/usr/bin/chromium-browser \
+    --no-first-run \
+    --no-default-browser-check \
+    --autoplay-policy=no-user-gesture-required \
+    --disable-infobars \
+    --disable-window-activation \
+    --disable-full-screen-modal \
+    --kiosk http://localhost:5081 \
+    --disable-features=TranslateUI \
+    --touch-events=enabled \
+    --enable-pinch
+
+ExecReload=/bin/kill -HUP $MAINPID
+
+Restart=always
+RestartSec=10
+
+# Touchscreen / kiosk
+Environment=QT_QPA_PLATFORM=wayland
+Environment=QT_WAYLAND_SHELL_INTEGRATION=wayland
+
+[Install]
+WantedBy=multi-user.target

systemd/extrudex-kiosk@.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Extrudex Kiosk Session (user-level, seat %i)
+After=graphical-session.target
+
+[Service]
+Type=simple
+Environment=DISPLAY=:0
+ExecStart=/bin/true
+Restart=on-failure
+
+[Install]
+WantedBy=graphical-session.target

systemd/extrudex.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=Extrudex Docker Compose Stack (Go + React)
+After=network-online.target docker.service
+Requires=docker.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+WorkingDirectory=/home/pi/extrudex
+ExecStart=/usr/bin/docker compose -f docker-compose.dev.yml up -d
+ExecStop=/usr/bin/docker compose -f docker-compose.dev.yml down
+TimeoutStartSec=120
+TimeoutStopSec=120
+
+[Install]
+WantedBy=multi-user.target