diff --git a/apps/nnn/plugins/preview b/apps/nnn/plugins/preview
index c7e19fd..54c1ee6 100755
--- a/apps/nnn/plugins/preview
+++ b/apps/nnn/plugins/preview
@@ -70,10 +70,10 @@ preview_file () {
 	# Otherwise, falling back to the defaults.
 	if [ -d "$1" ]; then
 		cd "$1" || return
-		if exists tree; then
+		if exists exa; then
+			fifo_pager exa --tree --level 3 --colour=always 2>/dev/null
+		elif exists tree; then
 			fifo_pager tree -L 3 -F
-		elif exists exa; then
-			fifo_pager exa -G --colour=always 2>/dev/null
 		else
 			fifo_pager ls --color=always
 		fi
diff --git a/apps/shell/fish/aliases.fish b/apps/shell/fish/aliases.fish
index 2a12250..f0044df 100755
--- a/apps/shell/fish/aliases.fish
+++ b/apps/shell/fish/aliases.fish
@@ -1,31 +1,16 @@
 #!/usr/bin/env fish
 
-# TODO: exa?
-alias lk 'ls -lSr' # order by filesize reversed
-alias lt 'ls -ltr' # order by file modified time
-alias lc 'ls -ltcr' # order by filectime
-alias lu 'ls -ltur' # order by file access time
-alias ls 'ls -h --color --group-directories-first' # flat view w/ directories first
-alias l  'ls -h --color --group-directories-first' # same as above
-alias ll 'ls -lv --group-directories-first' # non-flat view
-alias la 'll -A' # show all
+alias ls 'exa --group-directories-first'
+alias tree 'ls --tree --level=3'
+alias lA 'ls -a'
+alias ll 'ls -l'
+alias la 'll -a'
+alias lt 'll -t modified'
+alias lT 'lt -r'
+alias lc 'lt -t accessed'
+alias lC 'lc -r'
 
-# TODO: cat > bat
-alias tree 'tree -Csuh'
-alias f fzf
-alias t "tmux"
-alias rcp 'rsync -r -ah --progress'
-
-function r --wraps nnn --description 'support nnn quit and change directory'
-	set NNN_TMPFILE "$XDG_CONFIG_HOME/nnn/.lastd"
-	nnn -P p $argv
-	test -e $NNN_TMPFILE && source $NNN_TMPFILE && rm $NNN_TMPFILE
-end
-
-alias vltl "$EDITOR (ltl)"
-alias cdltl "cd (ltld)"
-
-function d -w cd --description "Quickly jump to NICE_HOME (or given dir) and show files."
+function d -w cd --description "Quickly jump to NICE_HOME (or given relative or absolute path) and list files."
 	if scount $argv
 		cd $argv || exit 1
 	else
@@ -34,7 +19,6 @@ function d -w cd --description "Quickly jump to NICE_HOME (or given dir) and sho
 	la
 end
 
-# navigation aliases
 function c --description "Quickly jump to a subdirectory of NICE_HOME (or just to NICE_HOME if none given)"
 	if scount $argv
 		cd $NICE_HOME && d $argv || exit 1
@@ -47,15 +31,12 @@ complete --command c -a \
 	"(pushd $NICE_HOME && fd . . --max-depth 1 --min-depth 1 -x ls -p && popd)"
 
 alias cd.. "d .."
-alias cdd "d $DOTFILES_PATH" # go to dotfiles
-alias cde "d $ENV_PATH" # go to env dotfiles
-alias cdc "d $XDG_CONFIG_HOME" # go to ~/.config
+alias cdd "d $DOTFILES_PATH"
+alias cde "d $ENV_PATH"
+alias cdc "d $XDG_CONFIG_HOME"
 alias cdn "d $NOTES_PATH"
 alias cdl "d $XDG_DOWNLOAD_DIR"
 alias cdg "d $XDG_GAMES_DIR"
-alias cdnx "d $DOTFILES_PATH/env/nix"
-
-# quick parent-directory aliases
 alias .. "d .."
 alias ... "d ../.."
 alias .... "d ../../.."
@@ -65,31 +46,57 @@ alias ....... "d ../../../../../.."
 alias ........ "d ../../../../../../.."
 alias ......... "d ../../../../../../../.."
 
+function r --wraps nnn --description 'Run nnn with support for jump-to-directory-on-exit via ^G'
+	# TODO: this would break with multiple nnn instances, right?
+	# probably need to mktemp instead
+	set NNN_TMPFILE "$XDG_CONFIG_HOME/nnn/.lastd"
+	nnn -P p $argv
+	test -e $NNN_TMPFILE && source $NNN_TMPFILE && rm $NNN_TMPFILE
+end
+alias l r
+
+alias t "tmux"
+alias rcp 'rsync -r -ah --progress'
+alias cat bat
+
 function g -w git
-	if scount $argv
-		git $argv
-	else
-		git status
-	end
+	if scount $argv; git $argv
+	else; git status; end
 end
 
-# docker aliases
 alias dlf "docker logs --tail=500 -f"
 alias dclf "docker-compose logs --tail=500 -f"
 alias ctop "docker run --rm -ti -v /var/run/docker.sock:/var/run/docker.sock quay.io/vektorlab/ctop:latest"
 
-# misc aliases
-function pp
-	while not ping -n 1 -t 5 8.8.8.8
-		sleep 1
-	end
+function chat
+	set -l pass (pass config/weechat-passphrase | head -n 1)
+	env WEECHAT_PASSPHRASE=$pass weechat
 end
+
+function rgl; rg --color always $argv | less -r; end
+
+alias k "kubectl"
+alias kg "k get"
+
+alias rg "rg --text"
+alias grep "rg"
+alias gr "rg"
+
+alias vim "$EDITOR"
+alias vi "$EDITOR"
+alias v "$EDITOR"
+alias e "$EDITOR"
+alias se "sudo -E $EDITOR"
+alias svim "se"
+
+alias vltl "$EDITOR (ltl)"
+alias cdltl "cd (ltld)"
+
+function pp; while not ping -n 1 -t 5 8.8.8.8; sleep 1; end; end
 alias p "ping 8.8.8.8"
-alias C "clear && tmux clear-history"
-alias l "nnn"
+alias C "clear; set -q TMUX && tmux clear-history"
 alias sctl "sudo systemctl"
 alias sctlu "systemctl --user"
-# TODO: a vi-like tui for bluetooth would be great
 alias bt "sctl start bluetooth && sudo bluetoothctl"
 alias btctl "bt"
 alias resrc "source $XDG_CONFIG_HOME/fish/config.fish"
@@ -97,32 +104,7 @@ alias sc "sc-im"
 alias scs "sc-im $NOTES_PATH/_scratch.sc"
 alias disks "lsblk && df -h"
 alias dd "dd status=progress"
-alias wifi "sudo nmtui"
-alias svim "sudo -E nvim"
+alias wifi "sudo iwctl"
 alias year 'cal (date +%Y)'
 alias mount 'sudo -E mount'
 alias pa pulsemixer
-
-# weechat aliases
-function chat
-	set -l pass (pass config/weechat-passphrase | head -n 1)
-	env WEECHAT_PASSPHRASE=$pass weechat
-end
-
-function rgl
-	# ripgrep | less
-	rg --color always $argv | less -r
-end
-
-# kubernetes aliases
-alias k "kubectl"
-alias kg "k get"
-
-# grep aliases
-alias rg "rg --text"
-alias grep "rg"
-
-alias vim nvim
-alias vi nvim
-alias v nvim
-
diff --git a/env/arch-linux/provision.d/20-install-packages.bash b/env/arch-linux/provision.d/20-install-packages.bash
index 9cac96a..e1b8bae 100755
--- a/env/arch-linux/provision.d/20-install-packages.bash
+++ b/env/arch-linux/provision.d/20-install-packages.bash
@@ -47,7 +47,6 @@ yay -Sy \
 	gammastep `# Redshift for Wayland` \
 	weechat `# IRC Client` \
 	aria2 `# Downloads Manager` \
-	tree `# Handy Filesystem Viewing Utility` \
 	dmenu `# Application Launcher` \
 	ripgrep `# Code Search Utilities` \
 	fd `# File Search` \
diff --git a/readme.md b/readme.md
index 53ebd19..729c8c5 100644
--- a/readme.md
+++ b/readme.md
@@ -14,6 +14,19 @@ like.
 curl -s -L https://git.lyte.dev/lytedev/dotfiles/raw/branch/master/bin/init-dotfiles | sh
 ```
 
+# Dependencies
+
++ `bat`
++ `fd`
++ `sd`
++ `fzf`
++ `fish`
++ `tmux`
++ `rsync`
++ `exa`
++ `nnn`
++ `nvim`
+
 # To Do
 
 + Hibernation and proper automatic power controls