wip: threadsafe

Cargo.toml

@@ -41,15 +41,17 @@ futures-util = "0.3.16"
 log = "0.4.14"
 num-format = "0.4.0"
 separator = "0.4.1"
-serde = { version = "1.0.126", features = ["derive"] }
+serde = { version = "1.0.130", features = ["derive"] }
 im-rc = "15.0.0"
 fxhash = "0.2.1"
 anyhow = "1.0.42"
+reqwest = "0.11.4"
+serde_json = "1.0.68"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
 argh = "0.1.5"
 env_logger = "0.9.0"
-async-std = { version = "1.9.0", features = ["attributes"] }
+tokio = { version = "1.12.0", features = ["full"] }
 rand = { version = "0.8.4", features = ["small_rng"] }
 gloo-timers = "0.2.1"
 # surf = { version = "2.3.1", default-features = false, features = [