it works!!

Cargo.toml

@@ -47,7 +47,6 @@ shadow-rs = { version = "0.11", default-features = false }
 const_format = { version = "0.2", default-features = false, features = ["fmt"] }
 cfg-if = "1"
 lazy_static = "1"
-tar = "0.4"
 ruzstd = { git = "https://github.com/Titaniumtown/zstd-rs.git", branch = "ringbuffer" }
 serde_json = "1.0"
 tracing = "0.1"
@@ -55,6 +54,7 @@ itertools = "0.10"
 static_assertions = "1.1"
 uuid = { version = "1", features = ["v4", "fast-rng", "js"] }
 bincode = "1.3.3"
+serde = "1"
 
 
 [dev-dependencies]
@@ -67,6 +67,9 @@ epaint = { git = "https://github.com/Titaniumtown/egui.git", default-features =
     "serde",
 ] }
 bincode = "1.3.3"
+serde = "1"
+serde_json = "1.0"
+zstd = "0.11.1+zstd.1.5.2"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 instant = "0.1"