diff --git a/Cargo.lock b/Cargo.lock
index cd276f0..21a1ee8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "anyhow"
 version = "1.0.41"
@@ -18,6 +20,12 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
 [[package]]
 name = "cairo-rs"
 version = "0.15.0"
@@ -65,6 +73,21 @@ dependencies = [
  "rustc_version",
 ]
 
+[[package]]
+name = "futures"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e7e43a803dae2fa37c1f6a8fe121e1f7bf9548b4dfc0522a42f34145dadfc27"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
 [[package]]
 name = "futures-channel"
 version = "0.3.15"
@@ -72,6 +95,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e682a68b29a882df0545c143dc3646daefe80ba479bcdede94d5a703de2871e2"
 dependencies = [
  "futures-core",
+ "futures-sink",
 ]
 
 [[package]]
@@ -97,6 +121,25 @@ version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "acc499defb3b348f8d8f3f66415835a9131856ff7714bf10dadfc4ec4bdb29a1"
 
+[[package]]
+name = "futures-macro"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4c40298486cdf52cc00cd6d6987892ba502c7656a16a4192a9992b1ccedd121"
+dependencies = [
+ "autocfg",
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "futures-sink"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a57bead0ceff0d6dde8f465ecd96c9338121bb7717d3e7b108059531870c4282"
+
 [[package]]
 name = "futures-task"
 version = "0.3.15"
@@ -110,10 +153,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "feb5c238d27e2bf94ffdfd27b2c29e3df4a68c4193bb6427384259e2bf191967"
 dependencies = [
  "autocfg",
+ "futures-channel",
  "futures-core",
+ "futures-io",
+ "futures-macro",
+ "futures-sink",
  "futures-task",
+ "memchr",
  "pin-project-lite",
  "pin-utils",
+ "proc-macro-hack",
+ "proc-macro-nested",
  "slab",
 ]
 
@@ -148,7 +198,22 @@ dependencies = [
  "bitflags",
  "cairo-rs",
  "gdk-pixbuf",
- "gdk4-sys",
+ "gdk4-sys 0.2.0 (git+https://github.com/gtk-rs/gtk4.git)",
+ "gio",
+ "glib",
+ "libc",
+ "pango",
+]
+
+[[package]]
+name = "gdk4"
+version = "0.2.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#0dcd4de340363608a768933738bac691b5141c26"
+dependencies = [
+ "bitflags",
+ "cairo-rs",
+ "gdk-pixbuf",
+ "gdk4-sys 0.2.0 (git+https://github.com/gtk-rs/gtk4-rs.git)",
  "gio",
  "glib",
  "libc",
@@ -171,6 +236,22 @@ dependencies = [
  "system-deps",
 ]
 
+[[package]]
+name = "gdk4-sys"
+version = "0.2.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#0dcd4de340363608a768933738bac691b5141c26"
+dependencies = [
+ "cairo-sys-rs",
+ "gdk-pixbuf-sys",
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "graphene-sys",
+ "libc",
+ "pango-sys",
+ "system-deps",
+]
+
 [[package]]
 name = "gio"
 version = "0.15.0"
@@ -278,7 +359,7 @@ source = "git+https://github.com/gtk-rs/gtk4.git#1e5bf8bbddf4696757f34e7fab0ce58
 dependencies = [
  "bitflags",
  "cairo-rs",
- "gdk4",
+ "gdk4 0.2.0 (git+https://github.com/gtk-rs/gtk4.git)",
  "glib",
  "graphene-rs",
  "gsk4-sys",
@@ -292,7 +373,7 @@ version = "0.2.0"
 source = "git+https://github.com/gtk-rs/gtk4.git#1e5bf8bbddf4696757f34e7fab0ce58d0f133a68"
 dependencies = [
  "cairo-sys-rs",
- "gdk4-sys",
+ "gdk4-sys 0.2.0 (git+https://github.com/gtk-rs/gtk4.git)",
  "glib-sys",
  "gobject-sys",
  "graphene-sys",
@@ -311,7 +392,7 @@ dependencies = [
  "field-offset",
  "futures-channel",
  "gdk-pixbuf",
- "gdk4",
+ "gdk4 0.2.0 (git+https://github.com/gtk-rs/gtk4.git)",
  "gio",
  "glib",
  "graphene-rs",
@@ -345,7 +426,7 @@ source = "git+https://github.com/gtk-rs/gtk4.git#1e5bf8bbddf4696757f34e7fab0ce58
 dependencies = [
  "cairo-sys-rs",
  "gdk-pixbuf-sys",
- "gdk4-sys",
+ "gdk4-sys 0.2.0 (git+https://github.com/gtk-rs/gtk4.git)",
  "gio-sys",
  "glib-sys",
  "gobject-sys",
@@ -380,6 +461,12 @@ version = "0.2.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "12b8adadd720df158f4d70dfe7ccc6adb0472d7c55ca83445f6a5ab3e36f8fb6"
 
+[[package]]
+name = "memchr"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
+
 [[package]]
 name = "memoffset"
 version = "0.6.4"
@@ -479,6 +566,18 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
+
+[[package]]
+name = "proc-macro-nested"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.27"
@@ -546,6 +645,11 @@ checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
 name = "snespatcher"
 version = "0.1.0"
 dependencies = [
+ "byteorder",
+ "futures",
+ "gdk4 0.2.0 (git+https://github.com/gtk-rs/gtk4-rs.git)",
+ "gio",
+ "glib",
  "gtk4",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 032c701..688a0d0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,3 +8,8 @@ edition = "2018"
 
 [dependencies]
 gtk4 = { git = "https://github.com/gtk-rs/gtk4.git" }
+glib = { git = "https://github.com/gtk-rs/gtk-rs-core.git", package = "glib" }
+gio = { git = "https://github.com/gtk-rs/gtk-rs-core.git", package = "gio" }
+gdk = { git = "https://github.com/gtk-rs/gtk4-rs.git", package = "gdk4" }
+futures = "0.3"
+byteorder = "*"
\ No newline at end of file