diff --git a/.gitignore b/.gitignore
index d81f12e..4500ed8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /target
 /.idea
+.direnv
diff --git a/Cargo.lock b/Cargo.lock
index 8471727..1d5db7c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -477,9 +477,9 @@ dependencies = [
 
 [[package]]
 name = "crc32fast"
-version = "1.4.0"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b3855a8a784b474f333699ef2bbca9db2c4a1f6d9088a90a2d25b1eb53111eaa"
+checksum = "a97769d94ddab943e4510d138150169a2758b5ef3eb191a9ee688de3e23ef7b3"
 dependencies = [
  "cfg-if",
 ]
@@ -1622,9 +1622,9 @@ dependencies = [
 
 [[package]]
 name = "servicepoint2"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54d49d501f34100406d70730d887775ed5961b6343ccb10d5ef0e105d7b295ae"
+checksum = "94d9aecc4d31a71578481de6c6d64383d374126c38469c9689067579c1d910fd"
 dependencies = [
  "bzip2",
  "flate2",
diff --git a/Cargo.toml b/Cargo.toml
index d80569f..74bfa8f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ license = "GPL-3.0-or-later"
 
 [dependencies]
 # packet parsing
-servicepoint2 = "0.4.1"
+servicepoint2 = { version = "0.4.2", features = ["all_compressions"] }
 
 # gui
 winit = { version = "0.30", features = ["rwh_05"] } # for creating a window
diff --git a/shell.nix b/shell.nix
index 0818d4c..c781cf1 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,4 +1,11 @@
-{ pkgs ? import <nixpkgs> {} }:
-  pkgs.mkShell {
-    nativeBuildInputs = with pkgs.buildPackages; [ rustup pkg-config xe lzma ];
+{pkgs ? import <nixpkgs> {}}:
+pkgs.mkShell {
+  nativeBuildInputs = with pkgs.buildPackages; [
+    rustup
+    pkg-config
+    xe
+    lzma
+    libxkbcommon
+    wayland
+  ];
 }
diff --git a/src/execute_command.rs b/src/execute_command.rs
index 0734e9e..4f7f364 100644
--- a/src/execute_command.rs
+++ b/src/execute_command.rs
@@ -2,7 +2,8 @@ use std::sync::{RwLock, RwLockWriteGuard};
 
 use log::{debug, error, info, warn};
 use servicepoint2::{
-    ByteGrid, Command, Origin, PixelGrid, PIXEL_COUNT, PIXEL_WIDTH, TILE_SIZE,
+    ByteGrid, Command, Grid, Origin, PIXEL_COUNT, PIXEL_WIDTH, PixelGrid,
+    TILE_SIZE,
 };
 
 use crate::font::BitmapFont;
@@ -25,7 +26,7 @@ pub(crate) fn execute_command(
         }
         Command::BitmapLinearWin(Origin(x, y), pixels, _) => {
             let mut display = display_ref.write().unwrap();
-            print_pixel_grid(x as usize, y as usize, &pixels, &mut display);
+            print_pixel_grid(x, y, &pixels, &mut display);
         }
         Command::Cp437Data(origin, grid) => {
             let mut display = display_ref.write().unwrap();
@@ -37,7 +38,7 @@ pub(crate) fn execute_command(
         }
         // TODO: how to deduplicate this code in a rusty way?
         Command::BitmapLinear(offset, vec, _) => {
-            if !check_bitmap_valid(offset, vec.len()) {
+            if !check_bitmap_valid(offset as u16, vec.len()) {
                 return true;
             }
             let mut display = display_ref.write().unwrap();
@@ -48,7 +49,7 @@ pub(crate) fn execute_command(
             }
         }
         Command::BitmapLinearAnd(offset, vec, _) => {
-            if !check_bitmap_valid(offset, vec.len()) {
+            if !check_bitmap_valid(offset as u16, vec.len()) {
                 return true;
             }
             let mut display = display_ref.write().unwrap();
@@ -60,7 +61,7 @@ pub(crate) fn execute_command(
             }
         }
         Command::BitmapLinearOr(offset, vec, _) => {
-            if !check_bitmap_valid(offset, vec.len()) {
+            if !check_bitmap_valid(offset as u16, vec.len()) {
                 return true;
             }
             let mut display = display_ref.write().unwrap();
@@ -72,7 +73,7 @@ pub(crate) fn execute_command(
             }
         }
         Command::BitmapLinearXor(offset, vec, _) => {
-            if !check_bitmap_valid(offset, vec.len()) {
+            if !check_bitmap_valid(offset as u16, vec.len()) {
                 return true;
             }
             let mut display = display_ref.write().unwrap();
@@ -85,8 +86,6 @@ pub(crate) fn execute_command(
         }
         Command::CharBrightness(origin, grid) => {
             let Origin(offset_x, offset_y) = origin;
-            let offset_x = offset_x as usize;
-            let offset_y = offset_y as usize;
 
             let mut luma = luma_ref.write().unwrap();
             for inner_y in 0..grid.height() {
@@ -130,9 +129,6 @@ fn print_cp437_data(
     display: &mut RwLockWriteGuard<PixelGrid>,
 ) {
     let Origin(x, y) = origin;
-    let x = x as usize;
-    let y = y as usize;
-
     for char_y in 0usize..grid.height() {
         for char_x in 0usize..grid.width() {
             let char_code = grid.get(char_x, char_y);
@@ -142,8 +138,8 @@ fn print_cp437_data(
 
             let bitmap = font.get_bitmap(char_code);
             if !print_pixel_grid(
-                tile_x * TILE_SIZE as usize,
-                tile_y * TILE_SIZE as usize,
+                tile_x * TILE_SIZE,
+                tile_y * TILE_SIZE,
                 bitmap,
                 display,
             ) {
@@ -185,8 +181,5 @@ fn print_pixel_grid(
 
 fn get_coordinates_for_index(offset: usize, index: usize) -> (usize, usize) {
     let pixel_index = offset + index;
-    (
-        pixel_index % PIXEL_WIDTH as usize,
-        pixel_index / PIXEL_WIDTH as usize,
-    )
+    (pixel_index % PIXEL_WIDTH, pixel_index / PIXEL_WIDTH)
 }