diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..5600faa
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,21 @@
+root = true
+[*]
+indent_style = space
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+charset = utf-8
+
+[*.{build,css,doap,scss,ui,xml,xml.in,xml.in.in,yaml,yml}]
+indent_size = 2
+
+[*.{json,py,rs}]
+indent_size = 4
+
+[*.{c,h,h.in}]
+indent_size = 2
+max_line_length = 80
+
+[NEWS]
+indent_size = 2
+max_line_length = 72
diff --git a/.gitignore b/.gitignore
index ea8c4bf..1a3a73a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,14 @@
-/target
+target/
+build/
+_build/
+builddir/
+build-aux/app
+build-aux/.flatpak-builder/
+src/config.rs
+*.ui.in~
+*.ui~
+.flatpak/
+vendor
+flatpak_app/
+.flatpak-builder/
+recompile/
diff --git a/Cargo.lock b/Cargo.lock
index ce51cce..2b65e7b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,12 +2,32 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "159bb86af3a200e19a068f4224eae4c8bb2d0fa054c7e5d1cacd5cef95e684cd"
 
+[[package]]
+name = "atty"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+dependencies = [
+ "hermit-abi",
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -21,10 +41,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
-name = "cairo-rs"
-version = "0.15.6"
+name = "block"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8b14c80d8d1a02fa6d914b9d1afeeca9bc34257f8300d9696e1e331ae114223"
+checksum = "0d8c1fef690941d3e7788d328517591fecc684c084084702d6ff1641e993699a"
+
+[[package]]
+name = "cairo-rs"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "bitflags",
  "cairo-sys-rs",
@@ -35,15 +60,20 @@ dependencies = [
 
 [[package]]
 name = "cairo-sys-rs"
-version = "0.15.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c55d429bef56ac9172d25fecb85dc8068307d17acd74b377866b7a1ef25d3c8"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "glib-sys",
  "libc",
  "system-deps",
 ]
 
+[[package]]
+name = "cc"
+version = "1.0.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+
 [[package]]
 name = "cfg-expr"
 version = "0.10.2"
@@ -53,6 +83,25 @@ dependencies = [
  "smallvec",
 ]
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "env_logger"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
+dependencies = [
+ "atty",
+ "humantime",
+ "log",
+ "regex",
+ "termcolor",
+]
+
 [[package]]
 name = "field-offset"
 version = "0.3.4"
@@ -95,6 +144,17 @@ version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
 
+[[package]]
+name = "futures-macro"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "futures-task"
 version = "0.3.21"
@@ -108,6 +168,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
 dependencies = [
  "futures-core",
+ "futures-macro",
  "futures-task",
  "pin-project-lite",
  "pin-utils",
@@ -116,9 +177,8 @@ dependencies = [
 
 [[package]]
 name = "gdk-pixbuf"
-version = "0.15.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8750501d75f318c2ec0314701bc8403901303210def80bafd13f6b6059a3f45"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "bitflags",
  "gdk-pixbuf-sys",
@@ -129,9 +189,8 @@ dependencies = [
 
 [[package]]
 name = "gdk-pixbuf-sys"
-version = "0.15.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "413424d9818621fa3cfc8a3a915cdb89a7c3c507d56761b4ec83a9a98e587171"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "gio-sys",
  "glib-sys",
@@ -142,9 +201,8 @@ dependencies = [
 
 [[package]]
 name = "gdk4"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9df40006277ff44538fe758400fc671146f6f2665978b6b57d2408db3c2becf"
+version = "0.5.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#f8a6597a7bf3014758b8efe007f593b27d501dbf"
 dependencies = [
  "bitflags",
  "cairo-rs",
@@ -158,9 +216,8 @@ dependencies = [
 
 [[package]]
 name = "gdk4-sys"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48a39e34abe35ee2cf54a1e29dd983accecd113ad30bdead5050418fa92f2a1b"
+version = "0.5.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#f8a6597a7bf3014758b8efe007f593b27d501dbf"
 dependencies = [
  "cairo-sys-rs",
  "gdk-pixbuf-sys",
@@ -174,10 +231,29 @@ dependencies = [
 ]
 
 [[package]]
-name = "gio"
-version = "0.15.6"
+name = "gettext-rs"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96efd8a1c00d890f6b45671916e165b5e43ccec61957d443aff6d7e44f62d348"
+checksum = "e49ea8a8fad198aaa1f9655a2524b64b70eb06b2f3ff37da407566c93054f364"
+dependencies = [
+ "gettext-sys",
+ "locale_config",
+]
+
+[[package]]
+name = "gettext-sys"
+version = "0.21.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afa9e06ab9e7514cc9ae668ea3b71ea1536259d767dff0289ac23ad134f99929"
+dependencies = [
+ "cc",
+ "temp-dir",
+]
+
+[[package]]
+name = "gio"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "bitflags",
  "futures-channel",
@@ -192,9 +268,8 @@ dependencies = [
 
 [[package]]
 name = "gio-sys"
-version = "0.15.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d0fa5052773f5a56b8ae47dab09d040f5d9ce1311f4f99006e16e9a08269296"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -205,15 +280,15 @@ dependencies = [
 
 [[package]]
 name = "glib"
-version = "0.15.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa570813c504bdf7539a9400180c2dd4b789a819556fb86da7226d7d1b037b49"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "bitflags",
  "futures-channel",
  "futures-core",
  "futures-executor",
  "futures-task",
+ "futures-util",
  "glib-macros",
  "glib-sys",
  "gobject-sys",
@@ -225,9 +300,8 @@ dependencies = [
 
 [[package]]
 name = "glib-macros"
-version = "0.15.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41bfd8d227dead0829ac142454e97531b93f576d0805d779c42bfd799c65c572"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "anyhow",
  "heck",
@@ -240,9 +314,8 @@ dependencies = [
 
 [[package]]
 name = "glib-sys"
-version = "0.15.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4366377bd56697de8aaee24e673c575d2694d72e7756324ded2b0428829a7b8"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "libc",
  "system-deps",
@@ -250,9 +323,8 @@ dependencies = [
 
 [[package]]
 name = "gobject-sys"
-version = "0.15.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df6859463843c20cf3837e3a9069b6ab2051aeeadf4c899d33344f4aea83189a"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "glib-sys",
  "libc",
@@ -261,9 +333,8 @@ dependencies = [
 
 [[package]]
 name = "graphene-rs"
-version = "0.15.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c54f9fbbeefdb62c99f892dfca35f83991e2cb5b46a8dc2a715e58612f85570"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "glib",
  "graphene-sys",
@@ -272,9 +343,8 @@ dependencies = [
 
 [[package]]
 name = "graphene-sys"
-version = "0.15.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03f311acb023cf7af5537f35de028e03706136eead7f25a31e8fd26f5011e0b3"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "glib-sys",
  "libc",
@@ -284,9 +354,8 @@ dependencies = [
 
 [[package]]
 name = "gsk4"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bf63d454e2f75abd92ee6de0ac9fc5aaf1018cd9c458aaf9de296c5cbab6bb9"
+version = "0.5.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#f8a6597a7bf3014758b8efe007f593b27d501dbf"
 dependencies = [
  "bitflags",
  "cairo-rs",
@@ -300,9 +369,8 @@ dependencies = [
 
 [[package]]
 name = "gsk4-sys"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e31d21d7ce02ba261bb24c50c4ab238a10b41a2c97c32afffae29471b7cca69b"
+version = "0.5.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#f8a6597a7bf3014758b8efe007f593b27d501dbf"
 dependencies = [
  "cairo-sys-rs",
  "gdk4-sys",
@@ -316,9 +384,8 @@ dependencies = [
 
 [[package]]
 name = "gtk4"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e841556e3fe55d8a43ada76b7b08a5f65570bbdfe3b8f72c333053b8832c626"
+version = "0.5.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#f8a6597a7bf3014758b8efe007f593b27d501dbf"
 dependencies = [
  "bitflags",
  "cairo-rs",
@@ -339,9 +406,8 @@ dependencies = [
 
 [[package]]
 name = "gtk4-macros"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "573db42bb64973a4d5f718b73caa7204285a1a665308a23b11723d0ee56ec305"
+version = "0.5.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#f8a6597a7bf3014758b8efe007f593b27d501dbf"
 dependencies = [
  "anyhow",
  "proc-macro-crate",
@@ -353,9 +419,8 @@ dependencies = [
 
 [[package]]
 name = "gtk4-sys"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c47c075e8f795c38f6e9a47b51a73eab77b325f83c0154979ed4d4245c36490d"
+version = "0.5.0"
+source = "git+https://github.com/gtk-rs/gtk4-rs.git#f8a6597a7bf3014758b8efe007f593b27d501dbf"
 dependencies = [
  "cairo-sys-rs",
  "gdk-pixbuf-sys",
@@ -377,10 +442,33 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
 
 [[package]]
-name = "libadwaita"
-version = "0.1.0"
+name = "hermit-abi"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d4b1d54d907dfa5d6663fdf4bdbe46c34747258b85c787adbf66187ccbaac81"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "humantime"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
+dependencies = [
+ "quick-error",
+]
+
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
+[[package]]
+name = "libadwaita"
+version = "0.1.0-alpha-6"
+source = "git+https://gitlab.gnome.org/World/Rust/libadwaita-rs.git?rev=e9ca4b59f2d3774c3ecfbb87828f9c6325fd59f9#e9ca4b59f2d3774c3ecfbb87828f9c6325fd59f9"
 dependencies = [
  "gdk-pixbuf",
  "gdk4",
@@ -395,9 +483,8 @@ dependencies = [
 
 [[package]]
 name = "libadwaita-sys"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f18b6ac4cadd252a89f5cba0a5a4e99836131795d6fad37b859ac79e8cb7d2c8"
+version = "0.1.0-alpha-6"
+source = "git+https://gitlab.gnome.org/World/Rust/libadwaita-rs.git?rev=e9ca4b59f2d3774c3ecfbb87828f9c6325fd59f9#e9ca4b59f2d3774c3ecfbb87828f9c6325fd59f9"
 dependencies = [
  "gdk4-sys",
  "gio-sys",
@@ -414,6 +501,43 @@ version = "0.2.119"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1bf2e165bb3457c8e098ea76f3e3bc9db55f87aa90d52d0e6be741470916aaa4"
 
+[[package]]
+name = "locale_config"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08d2c35b16f4483f6c26f0e4e9550717a2f6575bcd6f12a53ff0c490a94a6934"
+dependencies = [
+ "lazy_static",
+ "objc",
+ "objc-foundation",
+ "regex",
+ "winapi",
+]
+
+[[package]]
+name = "log"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "malloc_buf"
+version = "0.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62bb907fe88d54d8d9ce32a3cceab4218ed2f6b7d35617cafe9adf84e43919cb"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "memchr"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+
 [[package]]
 name = "memoffset"
 version = "0.6.5"
@@ -427,7 +551,41 @@ dependencies = [
 name = "mutiny"
 version = "0.1.0"
 dependencies = [
+ "gettext-rs",
+ "gtk4",
  "libadwaita",
+ "log",
+ "once_cell",
+ "pretty_env_logger",
+]
+
+[[package]]
+name = "objc"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "915b1b472bc21c53464d6c8461c9d3af805ba1ef837e1cac254428f4a77177b1"
+dependencies = [
+ "malloc_buf",
+]
+
+[[package]]
+name = "objc-foundation"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1add1b659e36c9607c7aab864a76c7a4c2760cd0cd2e120f3fb8b952c7e22bf9"
+dependencies = [
+ "block",
+ "objc",
+ "objc_id",
+]
+
+[[package]]
+name = "objc_id"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c92d4ddb4bd7b50d730c215ff871754d0da6b2178849f8a2a2ab69712d0c073b"
+dependencies = [
+ "objc",
 ]
 
 [[package]]
@@ -438,9 +596,8 @@ checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
 
 [[package]]
 name = "pango"
-version = "0.15.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78c7420fc01a390ec200da7395b64d705f5d82fe03e5d0708aee422c46538be7"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "bitflags",
  "glib",
@@ -451,9 +608,8 @@ dependencies = [
 
 [[package]]
 name = "pango-sys"
-version = "0.15.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7022c2fb88cd2d9d55e1a708a8c53a3ae8678234c4a54bf623400aeb7f31fac2"
+version = "0.16.0"
+source = "git+https://github.com/gtk-rs/gtk-rs-core#e06623f4ab5e4395216ce2d4040da7137572be39"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -488,6 +644,16 @@ version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
 
+[[package]]
+name = "pretty_env_logger"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"
+dependencies = [
+ "env_logger",
+ "log",
+]
+
 [[package]]
 name = "proc-macro-crate"
 version = "1.1.3"
@@ -531,6 +697,12 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "quick-error"
+version = "1.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
+
 [[package]]
 name = "quote"
 version = "1.0.15"
@@ -540,6 +712,23 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "regex"
+version = "1.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
 [[package]]
 name = "rustc_version"
 version = "0.3.3"
@@ -609,6 +798,21 @@ dependencies = [
  "version-compare",
 ]
 
+[[package]]
+name = "temp-dir"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af547b166dd1ea4b472165569fc456cfb6818116f854690b0ff205e636523dab"
+
+[[package]]
+name = "termcolor"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "thiserror"
 version = "1.0.30"
@@ -678,6 +882,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
diff --git a/Cargo.toml b/Cargo.toml
index c11f4f8..f6c1608 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,10 +1,13 @@
 [package]
+edition = "2021"
 name = "mutiny"
 version = "0.1.0"
-edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies.adw]
-package = "libadwaita"
-version = "0.1.0"
+[dependencies]
+adw = {package = "libadwaita", rev = "e9ca4b59f2d3774c3ecfbb87828f9c6325fd59f9", git = "https://gitlab.gnome.org/World/Rust/libadwaita-rs.git"}
+gettext-rs = {version = "0.7", features = ["gettext-system"]}
+gtk = {package = "gtk4", git = "https://github.com/gtk-rs/gtk4-rs.git"}
+log = "0.4"
+once_cell = "1.9"
+pretty_env_logger = "0.4"
diff --git a/build-aux/chat.revolt.Mutiny.Devel.json b/build-aux/chat.revolt.Mutiny.Devel.json
new file mode 100644
index 0000000..376b120
--- /dev/null
+++ b/build-aux/chat.revolt.Mutiny.Devel.json
@@ -0,0 +1,45 @@
+{
+    "app-id": "chat.revolt.Mutiny.Devel",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "master",
+    "sdk": "org.gnome.Sdk",
+    "sdk-extensions": [
+        "org.freedesktop.Sdk.Extension.rust-stable"
+    ],
+    "command": "mutiny",
+    "finish-args": [
+        "--socket=fallback-x11",
+        "--socket=wayland",
+        "--device=dri",
+        "--share=network",
+        "--env=RUST_LOG=mutiny=debug",
+        "--env=G_MESSAGES_DEBUG=none",
+        "--env=RUST_BACKTRACE=1"
+    ],
+    "build-options": {
+        "append-path": "/usr/lib/sdk/rust-stable/bin",
+        "build-args": [
+            "--share=network"
+        ],
+        "test-args": [
+            "--socket=x11",
+            "--share=network"
+        ]
+    },
+    "modules": [
+        {
+            "name": "mutiny",
+            "buildsystem": "meson",
+            "run-tests": true,
+            "config-opts": [
+                "-Dprofile=development"
+            ],
+            "sources": [
+                {
+                    "type": "dir",
+                    "path": "../"
+                }
+            ]
+        }
+    ]
+}
diff --git a/build-aux/dist-vendor.sh b/build-aux/dist-vendor.sh
new file mode 100644
index 0000000..be73278
--- /dev/null
+++ b/build-aux/dist-vendor.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+export DIST="$1"
+export SOURCE_ROOT="$2"
+
+cd "$SOURCE_ROOT"
+mkdir "$DIST"/.cargo
+cargo vendor | sed 's/^directory = ".*"/directory = "vendor"/g' > $DIST/.cargo/config
+# Move vendor into dist tarball directory
+mv vendor "$DIST"
+
diff --git a/data/chat.revolt.Mutiny.desktop.in.in b/data/chat.revolt.Mutiny.desktop.in.in
new file mode 100644
index 0000000..bf81e7a
--- /dev/null
+++ b/data/chat.revolt.Mutiny.desktop.in.in
@@ -0,0 +1,11 @@
+[Desktop Entry]
+Name=Mutiny
+Comment=Revolt Client
+Type=Application
+Exec=mutiny
+Terminal=false
+Categories=Network;InstantMessaging
+Keywords=Revolt;Chat
+# Translators: Do NOT translate or transliterate this text (this is an icon file name)!
+Icon=@icon@
+StartupNotify=true
diff --git a/data/chat.revolt.Mutiny.gschema.xml.in b/data/chat.revolt.Mutiny.gschema.xml.in
new file mode 100644
index 0000000..0910bc4
--- /dev/null
+++ b/data/chat.revolt.Mutiny.gschema.xml.in
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<schemalist>
+  <schema path="/chat/revolt/Mutiny/" id="@app-id@" gettext-domain="@gettext-package@">
+    <key name="window-width" type="i">
+      <default>600</default>
+      <summary>Default window width</summary>
+      <description>Default window width</description>
+    </key>
+    <key name="window-height" type="i">
+      <default>400</default>
+      <summary>Default window height</summary>
+      <description>Default window height</description>
+    </key>
+    <key name="is-maximized" type="b">
+      <default>false</default>
+      <summary>Default window maximized behaviour</summary>
+      <description></description>
+    </key>
+  </schema>
+</schemalist>
diff --git a/data/chat.revolt.Mutiny.metainfo.xml.in.in b/data/chat.revolt.Mutiny.metainfo.xml.in.in
new file mode 100644
index 0000000..5cae7fa
--- /dev/null
+++ b/data/chat.revolt.Mutiny.metainfo.xml.in.in
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Revolt 2019 <hello@revolt.chat> -->
+<component type="desktop-application">
+  <id>@app-id@</id>
+  <metadata_license>CC0</metadata_license>
+  <!-- Insert your license of choice here -->
+  <!-- <project_license>MIT</project_license> -->
+  <name>Mutiny</name>
+  <summary>Write a GTK + Rust application</summary>
+  <description>
+    <p>A boilerplate template for GTK + Rust. It uses Meson as a build system and has flatpak support by default.</p>
+  </description>
+  <screenshots>
+    <screenshot type="default">
+      <image>https://gitlab.gnome.org/bilelmoussaoui/mutiny/raw/master/data/resources/screenshots/screenshot1.png</image>
+      <caption>Main window</caption>
+    </screenshot>
+  </screenshots>
+  <url type="homepage">https://github.com/revoltchat/mutiny</url>
+  <url type="bugtracker">https://github.com/revoltchat/mutiny/issues</url>
+  <content_rating type="oars-1.1">
+    <content_attribute id="social-chat">moderate</content_attribute>
+    <content_attribute id="social-info">moderate</content_attribute>
+    <content_attribute id="social-audio">moderate</content_attribute>
+    <content_attribute id="social-contacts">intense</content_attribute>
+  </content_rating>
+  <releases>
+    <release version="0.0.1" date="2019-07-11" />
+  </releases>
+  <kudos>
+    <!--
+       GNOME Software kudos:
+       https://gitlab.gnome.org/GNOME/gnome-software/blob/master/doc/kudos.md
+     -->
+    <kudo>ModernToolkit</kudo>
+    <kudo>HiDpiIcon</kudo>
+  </kudos>
+  <developer_name>Revolt</developer_name>
+  <update_contact>hello@revolt.chat</update_contact>
+  <translation type="gettext">@gettext-package@</translation>
+  <launchable type="desktop-id">@app-id@.desktop</launchable>
+</component>
diff --git a/data/icons/chat.revolt.gtk.Mutiny-symbolic.svg b/data/icons/chat.revolt.Mutiny-symbolic.svg
similarity index 100%
rename from data/icons/chat.revolt.gtk.Mutiny-symbolic.svg
rename to data/icons/chat.revolt.Mutiny-symbolic.svg
diff --git a/data/icons/chat.revolt.gtk.Mutiny.Devel.svg b/data/icons/chat.revolt.Mutiny.Devel.svg
similarity index 100%
rename from data/icons/chat.revolt.gtk.Mutiny.Devel.svg
rename to data/icons/chat.revolt.Mutiny.Devel.svg
diff --git a/data/icons/chat.revolt.gtk.Mutiny.svg b/data/icons/chat.revolt.Mutiny.svg
similarity index 100%
rename from data/icons/chat.revolt.gtk.Mutiny.svg
rename to data/icons/chat.revolt.Mutiny.svg
diff --git a/data/icons/meson.build b/data/icons/meson.build
new file mode 100644
index 0000000..2ab86e9
--- /dev/null
+++ b/data/icons/meson.build
@@ -0,0 +1,10 @@
+install_data(
+  '@0@.svg'.format(application_id),
+  install_dir: iconsdir / 'hicolor' / 'scalable' / 'apps'
+)
+
+install_data(
+  '@0@-symbolic.svg'.format(base_id),
+  install_dir: iconsdir / 'hicolor' / 'symbolic' / 'apps',
+  rename: '@0@-symbolic.svg'.format(application_id)
+)
diff --git a/data/meson.build b/data/meson.build
new file mode 100644
index 0000000..5643b60
--- /dev/null
+++ b/data/meson.build
@@ -0,0 +1,76 @@
+subdir('icons')
+subdir('resources')
+# Desktop file
+desktop_conf = configuration_data()
+desktop_conf.set('icon', application_id)
+desktop_file = i18n.merge_file(
+  type: 'desktop',
+  input: configure_file(
+    input: '@0@.desktop.in.in'.format(base_id),
+    output: '@BASENAME@',
+    configuration: desktop_conf
+  ),
+  output: '@0@.desktop'.format(application_id),
+  po_dir: podir,
+  install: true,
+  install_dir: datadir / 'applications'
+)
+# Validate Desktop file
+if desktop_file_validate.found()
+  test(
+    'validate-desktop',
+    desktop_file_validate,
+    args: [
+      desktop_file.full_path()
+    ],
+    depends: desktop_file,
+  )
+endif
+
+# Appdata
+appdata_conf = configuration_data()
+appdata_conf.set('app-id', application_id)
+appdata_conf.set('gettext-package', gettext_package)
+appdata_file = i18n.merge_file(
+  input: configure_file(
+    input: '@0@.metainfo.xml.in.in'.format(base_id),
+    output: '@BASENAME@',
+    configuration: appdata_conf
+  ),
+  output: '@0@.metainfo.xml'.format(application_id),
+  po_dir: podir,
+  install: true,
+  install_dir: datadir / 'metainfo'
+)
+# Validate Appdata
+if appstream_util.found()
+  test(
+    'validate-appdata', appstream_util,
+    args: [
+      'validate', '--nonet', appdata_file.full_path()
+    ],
+    depends: appdata_file,
+  )
+endif
+
+# GSchema
+gschema_conf = configuration_data()
+gschema_conf.set('app-id', application_id)
+gschema_conf.set('gettext-package', gettext_package)
+configure_file(
+  input: '@0@.gschema.xml.in'.format(base_id),
+  output: '@0@.gschema.xml'.format(application_id),
+  configuration: gschema_conf,
+  install: true,
+  install_dir: datadir / 'glib-2.0' / 'schemas'
+)
+
+# Validata GSchema
+if glib_compile_schemas.found()
+  test(
+    'validate-gschema', glib_compile_schemas,
+    args: [
+      '--strict', '--dry-run', meson.current_build_dir()
+    ],
+  )
+endif
diff --git a/data/resources/meson.build b/data/resources/meson.build
new file mode 100644
index 0000000..604e1b2
--- /dev/null
+++ b/data/resources/meson.build
@@ -0,0 +1,9 @@
+# Resources
+resources = gnome.compile_resources(
+  'resources',
+  'resources.gresource.xml',
+  gresource_bundle: true,
+  source_dir: meson.current_build_dir(),
+  install: true,
+  install_dir: pkgdatadir,
+)
diff --git a/data/resources/resources.gresource.xml b/data/resources/resources.gresource.xml
new file mode 100644
index 0000000..09be358
--- /dev/null
+++ b/data/resources/resources.gresource.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/chat/revolt/Mutiny/">
+    <!-- see https://gtk-rs.org/gtk4-rs/git/docs/gtk4/struct.Application.html#automatic-resources -->
+    <file compressed="true" preprocess="xml-stripblanks" alias="gtk/help-overlay.ui">ui/shortcuts.ui</file>
+    <file compressed="true" preprocess="xml-stripblanks">ui/window.ui</file>
+  </gresource>
+</gresources>
diff --git a/data/resources/screenshots/screenshot1.png b/data/resources/screenshots/screenshot1.png
new file mode 100644
index 0000000..173b6be
Binary files /dev/null and b/data/resources/screenshots/screenshot1.png differ
diff --git a/data/resources/ui/shortcuts.ui b/data/resources/ui/shortcuts.ui
new file mode 100644
index 0000000..ef12f02
--- /dev/null
+++ b/data/resources/ui/shortcuts.ui
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <object class="GtkShortcutsWindow" id="help_overlay">
+    <property name="modal">True</property>
+    <child>
+      <object class="GtkShortcutsSection">
+        <property name="section-name">shortcuts</property>
+        <property name="max-height">10</property>
+        <child>
+          <object class="GtkShortcutsGroup">
+            <property name="title" translatable="yes" context="shortcut window">General</property>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="title" translatable="yes" context="shortcut window">Show Shortcuts</property>
+                <property name="action-name">win.show-help-overlay</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="title" translatable="yes" context="shortcut window">Quit</property>
+                <property name="action-name">app.quit</property>
+              </object>
+            </child>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>
diff --git a/data/resources/ui/window.ui b/data/resources/ui/window.ui
new file mode 100644
index 0000000..239a221
--- /dev/null
+++ b/data/resources/ui/window.ui
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <menu id="primary_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes">_Preferences</attribute>
+        <attribute name="action">app.preferences</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_Keyboard Shortcuts</attribute>
+        <attribute name="action">win.show-help-overlay</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_About Mutiny</attribute>
+        <attribute name="action">app.about</attribute>
+      </item>
+    </section>
+  </menu>
+  <template class="MutinyAppWindow" parent="AdwApplicationWindow">
+    <property name="content">
+      <object class="GtkBox">
+        <property name="orientation">vertical</property>
+        <child>
+          <object class="AdwHeaderBar" id="headerbar">
+            <property name="title-widget">
+              <object class="AdwWindowTitle">
+                <property name="title" translatable="yes">Mutiny</property>
+              </object>
+            </property>
+            <child type="end">
+              <object class="GtkMenuButton" id="appmenu_button">
+                <property name="icon-name">open-menu-symbolic</property>
+                <property name="menu-model">primary_menu</property>
+              </object>
+            </child>
+          </object>
+        </child>
+        <child>
+          <object class="GtkLabel" id="label">
+            <property name="label" translatable="yes">Hello world!</property>
+            <property name="hexpand">True</property>
+            <property name="vexpand">True</property>
+          </object>
+        </child>
+      </object>
+    </property>
+  </template>
+</interface>
diff --git a/meson.build b/meson.build
new file mode 100644
index 0000000..1974ef4
--- /dev/null
+++ b/meson.build
@@ -0,0 +1,71 @@
+project(
+  'mutiny',
+  'rust',
+  version: '0.0.1',
+  meson_version: '>= 0.59',
+  # license: MIT,
+)
+
+i18n = import('i18n')
+gnome = import('gnome')
+
+base_id = 'chat.revolt.Mutiny'
+
+dependency('glib-2.0', version: '>= 2.66')
+dependency('gio-2.0', version: '>= 2.66')
+dependency('gtk4', version: '>= 4.0.0')
+
+glib_compile_resources = find_program('glib-compile-resources', required: true)
+glib_compile_schemas = find_program('glib-compile-schemas', required: true)
+desktop_file_validate = find_program('desktop-file-validate', required: false)
+appstream_util = find_program('appstream-util', required: false)
+cargo = find_program('cargo', required: true)
+
+version = meson.project_version()
+
+prefix = get_option('prefix')
+bindir = prefix / get_option('bindir')
+localedir = prefix / get_option('localedir')
+
+datadir = prefix / get_option('datadir')
+pkgdatadir = datadir / meson.project_name()
+iconsdir = datadir / 'icons'
+podir = meson.project_source_root() / 'po'
+gettext_package = meson.project_name()
+
+if get_option('profile') == 'development'
+  profile = 'Devel'
+  vcs_tag = run_command('git', 'rev-parse', '--short', 'HEAD').stdout().strip()
+  if vcs_tag == ''
+    version_suffix = '-devel'
+  else
+    version_suffix = '-@0@'.format(vcs_tag)
+  endif
+  application_id = '@0@.@1@'.format(base_id, profile)
+else
+  profile = ''
+  version_suffix = ''
+  application_id = base_id
+endif
+
+meson.add_dist_script(
+  'build-aux/dist-vendor.sh',
+  meson.project_build_root() / 'meson-dist' / meson.project_name() + '-' + version,
+  meson.project_source_root()
+)
+
+if get_option('profile') == 'development'
+  # Setup pre-commit hook for ensuring coding style is always consistent
+  message('Setting up git pre-commit hook..')
+  run_command('cp', '-f', 'hooks/pre-commit.hook', '.git/hooks/pre-commit')
+endif
+
+subdir('data')
+subdir('po')
+subdir('src')
+
+gnome.post_install(
+  gtk_update_icon_cache: true,
+  glib_compile_schemas: true,
+  update_desktop_database: true,
+)
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 0000000..2e02821
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1,10 @@
+option(
+  'profile',
+  type: 'combo',
+  choices: [
+    'default',
+    'development'
+  ],
+  value: 'default',
+  description: 'The build profile for Mutiny. One of "default" or "development".'
+)
diff --git a/po/LINGUAS b/po/LINGUAS
new file mode 100644
index 0000000..e69de29
diff --git a/po/POTFILES.in b/po/POTFILES.in
new file mode 100644
index 0000000..9b44e61
--- /dev/null
+++ b/po/POTFILES.in
@@ -0,0 +1,6 @@
+data/chat.revolt.Mutiny.desktop.in.in
+data/chat.revolt.Mutiny.gschema.xml.in
+data/chat.revolt.Mutiny.metainfo.xml.in.in
+data/resources/ui/shortcuts.ui
+data/resources/ui/window.ui
+src/application.rs
diff --git a/po/meson.build b/po/meson.build
new file mode 100644
index 0000000..57d1266
--- /dev/null
+++ b/po/meson.build
@@ -0,0 +1 @@
+i18n.gettext(gettext_package, preset: 'glib')
diff --git a/src/application.rs b/src/application.rs
new file mode 100644
index 0000000..60ae9a7
--- /dev/null
+++ b/src/application.rs
@@ -0,0 +1,141 @@
+use gettextrs::gettext;
+use log::{debug, info};
+
+use adw::subclass::prelude::*;
+use glib::clone;
+use gtk::prelude::*;
+use gtk::subclass::prelude::*;
+use gtk::{gio, glib};
+
+use crate::config::{APP_ID, PKGDATADIR, PROFILE, VERSION};
+use crate::window::MutinyAppWindow;
+
+mod imp {
+    use super::*;
+    use glib::WeakRef;
+    use once_cell::sync::OnceCell;
+
+    #[derive(Debug, Default)]
+    pub struct MutinyApp {
+        pub window: OnceCell<WeakRef<MutinyAppWindow>>,
+    }
+
+    #[glib::object_subclass]
+    impl ObjectSubclass for MutinyApp {
+        const NAME: &'static str = "MutinyApp";
+        type Type = super::MutinyApp;
+        type ParentType = adw::Application;
+    }
+
+    impl ObjectImpl for MutinyApp {}
+
+    impl ApplicationImpl for MutinyApp {
+        fn activate(&self, app: &Self::Type) {
+            debug!("GtkApplication<MutinyApp>::activate");
+            self.parent_activate(app);
+
+            if let Some(window) = self.window.get() {
+                let window = window.upgrade().unwrap();
+                window.present();
+                return;
+            }
+
+            let window = MutinyAppWindow::new(app);
+            self.window
+                .set(window.downgrade())
+                .expect("Window already set.");
+
+            app.main_window().present();
+        }
+
+        fn startup(&self, app: &Self::Type) {
+            debug!("GtkApplication<MutinyApp>::startup");
+            self.parent_startup(app);
+
+            // Set icons for shell
+            gtk::Window::set_default_icon_name(APP_ID);
+
+            app.setup_gactions();
+            app.setup_accels();
+        }
+    }
+
+    impl GtkApplicationImpl for MutinyApp {}
+    impl AdwApplicationImpl for MutinyApp {}
+}
+
+glib::wrapper! {
+    pub struct MutinyApp(ObjectSubclass<imp::MutinyApp>)
+        @extends gio::Application, gtk::Application, adw::Application,
+        @implements gio::ActionMap, gio::ActionGroup;
+}
+
+impl MutinyApp {
+    pub fn new() -> Self {
+        glib::Object::new(&[
+            ("application-id", &Some(APP_ID)),
+            ("flags", &gio::ApplicationFlags::empty()),
+            ("resource-base-path", &Some("/chat/revolt/Mutiny/")),
+        ])
+        .expect("Application initialization failed...")
+    }
+
+    fn main_window(&self) -> MutinyAppWindow {
+        self.imp().window.get().unwrap().upgrade().unwrap()
+    }
+
+    fn setup_gactions(&self) {
+        // Quit
+        let action_quit = gio::SimpleAction::new("quit", None);
+        action_quit.connect_activate(clone!(@weak self as app => move |_, _| {
+            // This is needed to trigger the delete event and saving the window state
+            app.main_window().close();
+            app.quit();
+        }));
+        self.add_action(&action_quit);
+
+        // About
+        let action_about = gio::SimpleAction::new("about", None);
+        action_about.connect_activate(clone!(@weak self as app => move |_, _| {
+            app.show_about_dialog();
+        }));
+        self.add_action(&action_about);
+    }
+
+    // Sets up keyboard shortcuts
+    fn setup_accels(&self) {
+        self.set_accels_for_action("app.quit", &["<Control>q"]);
+    }
+
+    fn show_about_dialog(&self) {
+        let dialog = gtk::AboutDialog::builder()
+            .logo_icon_name(APP_ID)
+            // Insert your license of choice here
+            // .license_type(gtk::License::MitX11)
+            // Insert your website here
+            // .website("https://gitlab.gnome.org/bilelmoussaoui/mutiny/")
+            .version(VERSION)
+            .transient_for(&self.main_window())
+            .translator_credits(&gettext("translator-credits"))
+            .modal(true)
+            .authors(vec!["Revolt".into()])
+            .artists(vec!["Revolt".into()])
+            .build();
+
+        dialog.present();
+    }
+
+    pub fn run(&self) {
+        info!("Mutiny ({})", APP_ID);
+        info!("Version: {} ({})", VERSION, PROFILE);
+        info!("Datadir: {}", PKGDATADIR);
+
+        ApplicationExtManual::run(self);
+    }
+}
+
+impl Default for MutinyApp {
+    fn default() -> Self {
+        Self::new()
+    }
+}
diff --git a/src/config.rs.in b/src/config.rs.in
new file mode 100644
index 0000000..699897f
--- /dev/null
+++ b/src/config.rs.in
@@ -0,0 +1,7 @@
+pub const APP_ID: &str = @APP_ID@;
+pub const GETTEXT_PACKAGE: &str = @GETTEXT_PACKAGE@;
+pub const LOCALEDIR: &str = @LOCALEDIR@;
+pub const PKGDATADIR: &str = @PKGDATADIR@;
+pub const PROFILE: &str = @PROFILE@;
+pub const RESOURCES_FILE: &str = concat!(@PKGDATADIR@, "/resources.gresource");
+pub const VERSION: &str = @VERSION@;
diff --git a/src/main.rs b/src/main.rs
index cb5678f..ba84b35 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,92 +1,28 @@
-use adw::{prelude::*, Avatar};
+mod application;
+#[rustfmt::skip]
+mod config;
+mod window;
 
-use adw::{ActionRow, ApplicationWindow, HeaderBar};
-use adw::gtk::{Application, Box, ListBox, Orientation};
+use gettextrs::{gettext, LocaleCategory};
+use gtk::{gio, glib};
+
+use self::application::MutinyApp;
+use self::config::{GETTEXT_PACKAGE, LOCALEDIR, RESOURCES_FILE};
 
 fn main() {
-    // Configure a new GTK4 application.
-    let application = Application::builder()
-        .application_id("chat.revolt.Mutiny")
-        .build();
+    // Initialize logger
+    pretty_env_logger::init();
 
-    // Configure Adwaita on start.
-    application.connect_startup(|_| {
-        adw::init();
-    });
+    // Prepare i18n
+    gettextrs::setlocale(LocaleCategory::LcAll, "");
+    gettextrs::bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR).expect("Unable to bind the text domain");
+    gettextrs::textdomain(GETTEXT_PACKAGE).expect("Unable to switch to the text domain");
 
-    // Once the application is ready, build the UI.
-    application.connect_activate(|app| {
-        // This is our main Window frame.
-        let frame = Box::new(Orientation::Vertical, 0);
+    glib::set_application_name(&gettext("Mutiny"));
 
-        // Add the header bar, not included by default.
-        frame.append(
-            &HeaderBar::builder()
-                .title_widget(&adw::WindowTitle::new("Mutiny", ""))
-                .build(),
-        );
+    let res = gio::Resource::load(RESOURCES_FILE).expect("Could not load gresource file");
+    gio::resources_register(&res);
 
-        // Add the main content.
-        frame.append(&{
-            let panels = Box::builder()
-                .orientation(Orientation::Horizontal)
-                .margin_top(16)
-                .margin_start(16)
-                .build();
-
-            // Some stuff on the left.
-            panels.append(&{
-                let servers_or_something = Box::new(Orientation::Vertical, 24);
-
-                servers_or_something.append(&Avatar::new(64, Some("deez nuts"), true));
-                servers_or_something.append(&Avatar::new(64, Some("hm yes aaa"), true));
-                servers_or_something.append(&Avatar::new(64, Some("abc def"), true));
-                servers_or_something.append(&Avatar::new(64, Some("aaaa"), true));
-
-                servers_or_something
-            });
-
-            // This is the default content from the Adwaita demo code.
-            panels.append(&{
-                let list = ListBox::builder()
-                    .margin_top(32)
-                    .margin_end(32)
-                    .margin_bottom(32)
-                    .margin_start(32)
-                    .css_classes(vec![String::from("content")])
-                    .build();
-                
-                list.append(&{
-                    let row = ActionRow::builder()
-                        .activatable(true)
-                        .selectable(false)
-                        .title("Click me")
-                        .build();
-                    
-                    row.connect_activated(|_| {
-                        eprintln!("Clicked!");
-                    });
-                    
-                    row
-                });
-
-                list
-            });
-            
-            panels
-        });
-
-        // Construct the Window.
-        let window = ApplicationWindow::builder()
-            .application(app)
-            .default_width(350)
-            .content(&frame)
-            .build();
-        
-        // Display the Window.
-        window.show();
-    });
-
-    // Run the GTK application.
-    application.run();
+    let app = MutinyApp::new();
+    app.run();
 }
diff --git a/src/meson.build b/src/meson.build
new file mode 100644
index 0000000..d99036d
--- /dev/null
+++ b/src/meson.build
@@ -0,0 +1,52 @@
+global_conf = configuration_data()
+global_conf.set_quoted('APP_ID', application_id)
+global_conf.set_quoted('PKGDATADIR', pkgdatadir)
+global_conf.set_quoted('PROFILE', profile)
+global_conf.set_quoted('VERSION', version + version_suffix)
+global_conf.set_quoted('GETTEXT_PACKAGE', gettext_package)
+global_conf.set_quoted('LOCALEDIR', localedir)
+config = configure_file(
+  input: 'config.rs.in',
+  output: 'config.rs',
+  configuration: global_conf
+)
+# Copy the config.rs output to the source directory.
+run_command(
+  'cp',
+  meson.project_build_root() / 'src' / 'config.rs',
+  meson.project_source_root() / 'src' / 'config.rs',
+  check: true
+)
+
+cargo_options = [ '--manifest-path', meson.project_source_root() / 'Cargo.toml' ]
+cargo_options += [ '--target-dir', meson.project_build_root() / 'src' ]
+
+if get_option('profile') == 'default'
+  cargo_options += [ '--release' ]
+  rust_target = 'release'
+  message('Building in release mode')
+else
+  rust_target = 'debug'
+  message('Building in debug mode')
+endif
+
+cargo_env = [ 'CARGO_HOME=' + meson.project_build_root() / 'cargo-home' ]
+
+cargo_build = custom_target(
+  'cargo-build',
+  build_by_default: true,
+  build_always_stale: true,
+  output: meson.project_name(),
+  console: true,
+  install: true,
+  install_dir: bindir,
+  depends: resources,
+  command: [
+    'env',
+    cargo_env,
+    cargo, 'build',
+    cargo_options,
+    '&&',
+    'cp', 'src' / rust_target / meson.project_name(), '@OUTPUT@',
+  ]
+)
diff --git a/src/window.rs b/src/window.rs
new file mode 100644
index 0000000..1117457
--- /dev/null
+++ b/src/window.rs
@@ -0,0 +1,116 @@
+use adw::subclass::prelude::*;
+use gtk::prelude::*;
+use gtk::subclass::prelude::*;
+use gtk::{gio, glib};
+
+use crate::application::MutinyApp;
+use crate::config::{APP_ID, PROFILE};
+
+mod imp {
+    use super::*;
+
+    use gtk::CompositeTemplate;
+
+    #[derive(Debug, CompositeTemplate)]
+    #[template(resource = "/chat/revolt/Mutiny/ui/window.ui")]
+    pub struct MutinyAppWindow {
+        #[template_child]
+        pub headerbar: TemplateChild<adw::HeaderBar>,
+        pub settings: gio::Settings,
+    }
+
+    impl Default for MutinyAppWindow {
+        fn default() -> Self {
+            Self {
+                headerbar: TemplateChild::default(),
+                settings: gio::Settings::new(APP_ID),
+            }
+        }
+    }
+
+    #[glib::object_subclass]
+    impl ObjectSubclass for MutinyAppWindow {
+        const NAME: &'static str = "MutinyAppWindow";
+        type Type = super::MutinyAppWindow;
+        type ParentType = adw::ApplicationWindow;
+
+        fn class_init(klass: &mut Self::Class) {
+            Self::bind_template(klass);
+        }
+
+        // You must call `Widget`'s `init_template()` within `instance_init()`.
+        fn instance_init(obj: &glib::subclass::InitializingObject<Self>) {
+            obj.init_template();
+        }
+    }
+
+    impl ObjectImpl for MutinyAppWindow {
+        fn constructed(&self, obj: &Self::Type) {
+            self.parent_constructed(obj);
+
+            // Devel Profile
+            if PROFILE == "Devel" {
+                obj.add_css_class("devel");
+            }
+
+            // Load latest window state
+            obj.load_window_size();
+        }
+    }
+
+    impl WidgetImpl for MutinyAppWindow {}
+    impl WindowImpl for MutinyAppWindow {
+        // Save window state on delete event
+        fn close_request(&self, window: &Self::Type) -> gtk::Inhibit {
+            if let Err(err) = window.save_window_size() {
+                log::warn!("Failed to save window state, {}", &err);
+            }
+
+            // Pass close request on to the parent
+            self.parent_close_request(window)
+        }
+    }
+
+    impl ApplicationWindowImpl for MutinyAppWindow {}
+    impl AdwApplicationWindowImpl for MutinyAppWindow {}
+}
+
+glib::wrapper! {
+    pub struct MutinyAppWindow(ObjectSubclass<imp::MutinyAppWindow>)
+        @extends gtk::Widget, gtk::Window, gtk::ApplicationWindow,
+        @implements gio::ActionMap, gio::ActionGroup, gtk::Root;
+}
+
+impl MutinyAppWindow {
+    pub fn new(app: &MutinyApp) -> Self {
+        glib::Object::new(&[("application", app)]).expect("Failed to create MutinyAppWindow")
+    }
+
+    fn save_window_size(&self) -> Result<(), glib::BoolError> {
+        let imp = self.imp();
+
+        let (width, height) = self.default_size();
+
+        imp.settings.set_int("window-width", width)?;
+        imp.settings.set_int("window-height", height)?;
+
+        imp.settings
+            .set_boolean("is-maximized", self.is_maximized())?;
+
+        Ok(())
+    }
+
+    fn load_window_size(&self) {
+        let imp = self.imp();
+
+        let width = imp.settings.int("window-width");
+        let height = imp.settings.int("window-height");
+        let is_maximized = imp.settings.boolean("is-maximized");
+
+        self.set_default_size(width, height);
+
+        if is_maximized {
+            self.maximize();
+        }
+    }
+}