some new tweaks

.config/fish/config.fish

@@ -7,10 +7,26 @@ abbr --add adl album-dl.fish
 abbr --add vv nvim
 abbr --add tr gio trash
 
-function mvi
+function alacritty
+	command alacritty msg create-window $argv
+end
+
+function mvi --description 'Launches mpv with mvi configuration'
     mpv --config-dir=$HOME/.config/mvi/ $argv
 end
 
+function open --description 'Opens a file in its default application'
+	argparse h/help -- $argv
+	or return
+
+	if set -ql _flag_help
+		echo "open [-h|--help] [STRING]"
+		return 0
+	end
+
+	niri msg action spawn -- xdg-open $argv
+end
+
 # BEGIN opam configuration
 # This is useful if you're using opam as it adds:
 #   - the correct directories to the PATH