diff --git a/.github/workflows/quality.yaml b/.github/workflows/quality.yaml
new file mode 100644
index 0000000..bdc0559
--- /dev/null
+++ b/.github/workflows/quality.yaml
@@ -0,0 +1,53 @@
+name: quality
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+
+jobs:
+  changes:
+    runs-on: ubuntu-latest
+    outputs:
+      nix: ${{ steps.changes.outputs.nix }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dorny/paths-filter@v3
+        id: changes
+        with:
+          filters: |
+            nix:
+              - '**/*.nix'
+              - 'flake.lock'
+              - 'flake.nix'
+
+  nix-format:
+    name: Nix Format Check
+    runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.nix == 'true' }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v31
+      - run: nix fmt -- --ci
+
+  deadnix:
+    name: Deadnix Check
+    runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.nix == 'true' }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v31
+      - run: nix develop --command deadnix --fail .
+
+  statix:
+    name: Statix Check
+    runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.nix == 'true' }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v31
+      - run: nix develop --command statix check .
diff --git a/.gitignore b/.gitignore
index aeb5ac3..c9407c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 result
 .direnv/
+.envrc
 fonts/
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..d2ce5dc
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,9 @@
+repos:
+  - repo: local
+    hooks:
+      - id: nixfmt
+        name: nixfmt
+        entry: nix fmt -- --fail-on-change
+        language: system
+        files: \.nix$
+        pass_filenames: false
diff --git a/config/tmux/tmux.conf b/config/tmux/tmux.conf
index 58576cc..46b5c2b 100644
--- a/config/tmux/tmux.conf
+++ b/config/tmux/tmux.conf
@@ -54,6 +54,7 @@ unbind ?; bind ? if -F '#{pane_in_mode}' { send-keys -X cancel } { copy-mode ; c
 
 bind -T copy-mode-vi v send-keys -X begin-selection
 bind -T copy-mode-vi y send-keys -X copy-pipe 'test -n "$WAYLAND_DISPLAY" && wl-copy || xclip -in -sel c'
+# TODO: breaks all the time
 bind -n DoubleClick1Pane select-pane \; copy-mode -M \; send-keys -X select-word \; run-shell -d 0.3 \; send-keys -X copy-pipe-and-cancel 'test -n "$WAYLAND_DISPLAY" && wl-copy || xclip -in -sel c'
 bind -n TripleClick1Pane select-pane \; copy-mode -M \; send-keys -X select-line \; run-shell -d 0.3 \; send-keys -X copy-pipe-and-cancel 'test -n "$WAYLAND_DISPLAY" && wl-copy || xclip -in -sel c'
 bind -T copy-mode-vi DoubleClick1Pane select-pane \; send-keys -X select-word \; run-shell -d 0.3 \; send-keys -X copy-pipe 'test -n "$WAYLAND_DISPLAY" && wl-copy || xclip -in -sel c' \; send-keys -X clear-selection
diff --git a/flake.nix b/flake.nix
index f685c78..08cf7bb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -96,6 +96,19 @@
     {
       formatter.x86_64-linux = (mkPkgs "x86_64-linux" [ ]).nixfmt-tree;
 
+      devShells.x86_64-linux.default =
+        let
+          pkgs = mkPkgs "x86_64-linux" [ ];
+        in
+        pkgs.mkShell {
+          packages = [
+            pkgs.deadnix
+            pkgs.statix
+            pkgs.nixfmt
+            pkgs.pre-commit
+          ];
+        };
+
       nixosConfigurations.xps15 = nixpkgs.lib.nixosSystem {
         modules = [
           nixos-hardware.nixosModules.dell-xps-15-9500-nvidia
diff --git a/home/modules/ui.nix b/home/modules/ui.nix
index bab1975..1f3e437 100644
--- a/home/modules/ui.nix
+++ b/home/modules/ui.nix
@@ -171,7 +171,7 @@ in
         interval = 1;
         signal = 1;
         on-click = "ctl audio sink";
-        on-click-right = "pgrep -f 'waybar.*slider' && pkill -f 'waybar.*slider' || (waybar -c ${config.xdg.configHome}/waybar/slider.json &)";
+        on-click-right = "pgrep -f 'waybar.*slider' && pkill -f 'waybar.*slider' || hyprctl dispatch exec 'waybar -c ${config.xdg.configHome}/waybar/slider.json'";
         on-click-middle = "wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle; pkill -RTMIN+1 waybar";
         on-scroll-up = "wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%+ --limit 1.0; pkill -RTMIN+1 waybar";
         on-scroll-down = "wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%-; pkill -RTMIN+1 waybar";