Store devices wrapped in Arc RwLock

Cargo.lock

@@ -75,6 +75,7 @@ dependencies = [
  "reqwest",
  "rumqttc",
  "serde",
+ "serde-tuple-vec-map",
  "serde_json",
  "serde_repr",
  "thiserror",
@@ -461,10 +462,13 @@ checksum = "b6c80984affa11d98d1b88b66ac8853f143217b399d3c74116778ff8fdb4ed2e"
 name = "google-home"
 version = "0.1.0"
 dependencies = [
+ "async-trait",
+ "futures",
  "impl_cast",
  "serde",
  "serde_json",
  "thiserror",
+ "tokio",
 ]
 
 [[package]]
@@ -1212,6 +1216,15 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-tuple-vec-map"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a04d0ebe0de77d7d445bb729a895dcb0a288854b267ca85f030ce51cdc578c82"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.183"