diff --git a/.config/fish/fish_variables b/.config/fish/fish_variables
deleted file mode 100644
index 2ab2c10..0000000
--- a/.config/fish/fish_variables
+++ /dev/null
@@ -1,28 +0,0 @@
-# This file contains fish universal variable definitions.
-# VERSION: 3.0
-SETUVAR --export BAT_THEME:OneHalfDark
-SETUVAR DISPLAY:\x3a0
-SETUVAR --export EDITOR:nvim
-SETUVAR --export ELECTRON_OZONE_PLATFORM_HINT:wayland
-SETUVAR FLASK_ENV:development
-SETUVAR --export --path GODOT_ADDON_PATH:\x7e/\x2elocal/share/godot/addons
-SETUVAR GTK_THEME:adwaita
-SETUVAR LANG:en_GB\x2eUTF\x2d8
-SETUVAR LANGUAGE:en_GB\x2eUTF\x2d8
-SETUVAR --export LAST_DIR:/home/felix/Code/side/advent_of_code_2024
-SETUVAR --export MY_GITLAB_TOKEN:glpat\x2dJRJxEXxRxznVHLzHuuPc
-SETUVAR --export RUSTC_WRAPPER:\x1d
-SETUVAR --export SUDO_ASKPASS:/usr/bin/ksshaskpass
-SETUVAR TERMINAL_FONT_SIZE:14
-SETUVAR --export VISUAL_EDITOR:nvim
-SETUVAR __fish_initialized:4300
-SETUVAR _fish_abbr_audio_2D_switch:\x7e/Code/scripts/alsa\x2dfp\x2dswitch\x2esh
-SETUVAR _fish_abbr_clera:clear
-SETUVAR _fish_abbr_current_2D_project:vim\x20Code/side/first_rust_gui
-SETUVAR _fish_abbr_secscreen:\x2e/Code/scripts/act_second_monitor\x2esh
-SETUVAR _fish_abbr_uin:sudo\x20pacman\x20\x2dRuscn
-SETUVAR _fisher_nickeb96_2F_puffer_2D_fish_files:\x7e/\x2econfig/fish/functions/_puffer_fish_expand_bang\x2efish\x1e\x7e/\x2econfig/fish/functions/_puffer_fish_expand_dots\x2efish\x1e\x7e/\x2econfig/fish/functions/_puffer_fish_expand_lastarg\x2efish\x1e\x7e/\x2econfig/fish/conf\x2ed/puffer_fish_key_bindings\x2efish
-SETUVAR _fisher_plugins:nickeb96/puffer\x2dfish
-SETUVAR _fisher_upgraded_to_4_4:\x1d
-SETUVAR fish_greeting:Welcome\x20to\x20fish\x2c\x20the\x20friendly\x20interactive\x20shell\x0aType\x20\x60help\x60\x20for\x20instructions\x20on\x20how\x20to\x20use\x20fish
-SETUVAR fish_user_paths:/home/felix/\x2ecargo/bin
diff --git a/.config/niri/windowrules.kdl b/.config/niri/windowrules.kdl
index 3203388..fea00ad 100644
--- a/.config/niri/windowrules.kdl
+++ b/.config/niri/windowrules.kdl
@@ -58,6 +58,12 @@ window-rule {
 	match app-id="^Alacritty$"
 	default-column-width { proportion 0.333; }
 }
+window-rule {
+	match app-id="^Thunderbird$"
+
+	default-column-width { proportion 0.9; }
+	open-on-workspace "2"
+}
 
 window-rule {
 	match app-id="^Slack$"