diff --git a/Cargo.lock b/Cargo.lock
index 28f69be..54a4b78 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -18,6 +18,15 @@ version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c71b1793ee61086797f5c80b6efa2b8ffa6d5dd703f118545808a7f2e27f7046"
 
+[[package]]
+name = "addr2line"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
+dependencies = [
+ "gimli",
+]
+
 [[package]]
 name = "adler"
 version = "1.0.2"
@@ -127,6 +136,21 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "backtrace"
+version = "0.3.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2089b7e3f35b9dd2d0ed921ead4f6d318c27680d4a5bd167b3ee120edb105837"
+dependencies = [
+ "addr2line",
+ "cc",
+ "cfg-if",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
+]
+
 [[package]]
 name = "bit-set"
 version = "0.5.3"
@@ -802,6 +826,12 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "gimli"
+version = "0.28.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4271d37baee1b8c7e4b708028c57d816cf9d2434acb33a549475f78c181f6253"
+
 [[package]]
 name = "gl_generator"
 version = "0.14.0"
@@ -998,6 +1028,7 @@ dependencies = [
  "futures",
  "iced_core",
  "log",
+ "tokio",
  "wasm-bindgen-futures",
  "wasm-timer",
 ]
@@ -1524,6 +1555,15 @@ dependencies = [
  "objc",
 ]
 
+[[package]]
+name = "object"
+version = "0.32.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6a622008b6e321afc04970976f62ee297fdbaa6f95318ca343e3eebb9648441"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.19.0"
@@ -1841,6 +1881,12 @@ dependencies = [
  "xmlparser",
 ]
 
+[[package]]
+name = "rustc-demangle"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
+
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
@@ -2131,6 +2177,7 @@ name = "thief-book-manager"
 version = "0.1.0"
 dependencies = [
  "iced",
+ "tokio",
 ]
 
 [[package]]
@@ -2206,6 +2253,17 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
+[[package]]
+name = "tokio"
+version = "1.35.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c89b4efa943be685f629b149f53829423f8f5531ea21249408e8e2f8671ec104"
+dependencies = [
+ "backtrace",
+ "num_cpus",
+ "pin-project-lite",
+]
+
 [[package]]
 name = "toml_datetime"
 version = "0.6.5"
diff --git a/Cargo.toml b/Cargo.toml
index 9dd2d56..0eea847 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,4 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-iced = { git = "https://github.com/iced-rs/iced.git", version = "0.12.0" }
+iced = { git = "https://github.com/iced-rs/iced.git", version = "0.12.0", features = ["tokio"] }
+tokio = { version = "1.35.1", features = ["fs"] }