diff --git a/apps/machine/src/stores/atm.ts b/apps/machine/src/stores/atm.ts
index 1dc58ce..a8e1319 100644
--- a/apps/machine/src/stores/atm.ts
+++ b/apps/machine/src/stores/atm.ts
@@ -260,6 +260,7 @@ export const useAtmStore = defineStore('atm', () => {
   const allowMockFallback = ref(true) // default true for browser dev
   const initError = ref<string | null>(null) // fatal error → maintenance screen
   const fiatCode = ref('USD')
+  const machineModel = ref('atm')
   const useLiveServices = ref(false)
   const connectionStatus = ref<'disconnected' | 'connecting' | 'connected' | 'error'>(
     'disconnected'
@@ -564,7 +565,7 @@ export const useAtmStore = defineStore('atm', () => {
       initialize(servicesWithInventory)
 
       // Start broadcasting availability (Kind 30078) with 5-minute heartbeat
-      startAvailabilityBroadcast(services.nostrClient, services.identity, 'atm')
+      startAvailabilityBroadcast(services.nostrClient, services.identity, machineModel.value)
     } catch (error) {
       console.error('[ATM] Failed to connect to Lightning.Pub:', error)
       connectionStatus.value = 'error'
@@ -856,7 +857,7 @@ export const useAtmStore = defineStore('atm', () => {
       })
 
       // Start broadcasting availability (Kind 30078)
-      startAvailabilityBroadcast(lightning.nostrClient, lightning.identity, 'atm')
+      startAvailabilityBroadcast(lightning.nostrClient, lightning.identity, machineModel.value)
 
       console.log('[ATM] Fully initialized with HAL + Lightning')
     } catch (error) {
@@ -896,6 +897,7 @@ export const useAtmStore = defineStore('atm', () => {
       debugMode.value = false
     }
     const model = (runtimeConfig.machineModel || 'sintra') as MachineModel
+    machineModel.value = model
     const runtimeFiatCode = runtimeConfig.fiatCode || 'USD'
     fiatCode.value = runtimeFiatCode
 
@@ -1111,7 +1113,7 @@ export const useAtmStore = defineStore('atm', () => {
       // Real hardware connected — disable mock bill simulator
       debugMode.value = false
       // Start broadcasting availability (Kind 30078)
-      startAvailabilityBroadcast(lightning.nostrClient, lightning.identity, 'atm')
+      startAvailabilityBroadcast(lightning.nostrClient, lightning.identity, machineModel.value)
 
       console.log('[ATM] Fully initialized with HAL (IPC) + Lightning')
     } catch (error) {