diff --git a/arch-root/install.sh b/arch-root/install.sh
index bcc72c4..e698e6a 100755
--- a/arch-root/install.sh
+++ b/arch-root/install.sh
@@ -6,7 +6,7 @@ PACKAGES=(
 	
 	linux base linux-firmware lvm2 sudo polkit # base
 	pulseaudio pulseaudio-bluetooth bluez bluez-utils networkmanager udisks2 # device management
-	openssh man-db htop # admin utils
+	openssh sysstat screen man-db # system 
 
 	nodejs dash jq # runtime
 	qemu-system-x86 # virt
diff --git a/arch-user/bin/alg/file-tree-apply.sh b/arch-user/bin/alg/file-tree-apply.sh
deleted file mode 100755
index 8028f17..0000000
--- a/arch-user/bin/alg/file-tree-apply.sh
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/bin/bash
-set -e
-
-if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ] || [ -z "$4" ]; then
-	echo "bad args" >&2
-	exit 1
-fi 
-
-DEST=$(realpath "$2")
-cd "$1"
-
-#shellcheck disable=SC2016
-find . \
-	-type f \
-	-not -path '*/.*' \
-	-path "$3" | \
-		xargs -0 -d \\n -n 1 sh -c "mkdir -p $DEST/\$(dirname \"\$1\")" sh
-
-#shellcheck disable=SC2016
-find . \
-	-type f \
-	-not -path '*/.*' \
-	-path "$3" \
-	-printf "$(pwd)/%P\n$DEST/%P\n" | \
-		xargs -0 -d \\n -n 2 sh -c "$4" sh
-
-
-#for rel in $(find . -type f -name *.gpg); do
-#	DESTFILE=$(echo $DEST/$rel | sed 's/\.[^.]*$//')
- #      	[ -f "$DESTFILE" ] && continue	
-#	mkdir -p "$(dirname "$DESTFILE")"
-#	gpg --output "$DESTFILE" --decrypt "$rel"
-#done
diff --git a/arch-user/bin/run.sh b/arch-user/bin/bemenu/run.sh
similarity index 100%
rename from arch-user/bin/run.sh
rename to arch-user/bin/bemenu/run.sh
diff --git a/arch-user/bin/gpg/reencrypt-to-sym.sh b/arch-user/bin/gpg/reencrypt-to-sym.sh
deleted file mode 100755
index a3e7e9d..0000000
--- a/arch-user/bin/gpg/reencrypt-to-sym.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/bash
-set -e
-
-if [ -z "$PASSPHRASE" ]; then
-	read -srp "Password: " PASSPHRASE
-	echo
-fi
-export PASSPHRASE
-
-bash ~/.local/bin/alg/file-tree-apply.sh "$1" "$2" '*.gpg' \
-	'if [ ! -f "$2" ]; then gpg --decrypt "$1" | gpg --symmetric --output "$2" --passphrase "$PASSPHRASE" --batch --yes; fi'
-
-echo ok
diff --git a/arch-user/bin/qemu/arch.sh b/arch-user/bin/qemu/arch.sh
new file mode 100755
index 0000000..e7ff077
--- /dev/null
+++ b/arch-user/bin/qemu/arch.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+if [ -z "$1" ]; then
+	echo Error: no name >&2
+	exit 1
+fi
+
+if ! screen -ls | grep -q qemu-arch; then
+	screen-detach "qemu-arch-$1" \
+		qemu-system-x86_64 "$HOME/lfs/vm/$1" \
+			-display none \
+			-m 2G \
+			-accel kvm -cpu host \
+			-net nic -net user,hostfwd=tcp:127.0.0.1:2222-:22
+fi
+
+screen -ls | grep qemu-arch
+if ! screen -ls | grep -q "qemu-arch-$1"; then
+	echo Error: another kind is running >&2
+	exit 1
+fi
+
+while true; do
+	ssh arch@127.0.0.1 -p 2222 && break
+	sleep 5
+done
diff --git a/arch-user/bin/screen/detach.sh b/arch-user/bin/screen/detach.sh
new file mode 100755
index 0000000..8f3f4bd
--- /dev/null
+++ b/arch-user/bin/screen/detach.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+session_name="$1"
+shift
+tmpfile=$(mktemp)
+cmd="$(printf "%q " "$@")"
+qcmd="$(printf "%q " "$cmd")"
+echo -e ". ~/.bashrc\nhistory -s "$qcmd"\necho "$qcmd"\n$cmd && exit" > "$tmpfile"
+screen -S "$session_name" -dm bash --init-file "$tmpfile"
diff --git a/arch-user/config/bash/bashrc b/arch-user/config/bash/bashrc
index 2cb268b..b78f326 100644
--- a/arch-user/config/bash/bashrc
+++ b/arch-user/config/bash/bashrc
@@ -9,3 +9,5 @@ alias grep='grep --color=auto'
 
 export EDITOR=vim
 PS1='\[\033[38;2;153;136;255m\]\u@\h:\W\$\[\033[0m\]\[\e[0;91m\]${?#0}\[\e[0m\] '
+
+
diff --git a/arch-user/config/pass/env.sh b/arch-user/config/pass/env.sh
index 5b77089..638856f 100755
--- a/arch-user/config/pass/env.sh
+++ b/arch-user/config/pass/env.sh
@@ -1,4 +1,3 @@
 #!/bin/sh
-
 export PASSWORD_STORE_DIR="$HOME/know/id"
 export PASSWORD_STORE_GENERATED_LENGTH=16
diff --git a/arch-user/config/readline/env.sh b/arch-user/config/readline/env.sh
index af4cbff..33c51bf 100755
--- a/arch-user/config/readline/env.sh
+++ b/arch-user/config/readline/env.sh
@@ -1,3 +1,2 @@
 #!/bin/sh
-
 export INPUTRC="$HOME/.config/readline/inputrc"
diff --git a/arch-user/config/screen/env.sh b/arch-user/config/screen/env.sh
new file mode 100755
index 0000000..b1b1223
--- /dev/null
+++ b/arch-user/config/screen/env.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+export SCREENRC="$HOME/.config/screen/screenrc"
diff --git a/arch-user/config/screen/screenrc b/arch-user/config/screen/screenrc
new file mode 100644
index 0000000..cd1e06b
--- /dev/null
+++ b/arch-user/config/screen/screenrc
@@ -0,0 +1 @@
+termcapinfo * ti@:te@
diff --git a/arch-user/config/sway/config.tmpl b/arch-user/config/sway/config.tmpl
index 029a21b..48e1889 100644
--- a/arch-user/config/sway/config.tmpl
+++ b/arch-user/config/sway/config.tmpl
@@ -135,7 +135,7 @@ bindsym --to-code {
 	# basic scripts
 	$mod+Colon exec ~/.local/bin/sway/command-mode.sh
 	$mod+Return exec footclient
-	$mod+Space exec run.sh
+	$mod+Space exec ~/.local/bin/bemenu/run.sh
 }
 ##############################################
 
diff --git a/arch-user/install.sh b/arch-user/install.sh
index cd06b61..7fb19f5 100755
--- a/arch-user/install.sh
+++ b/arch-user/install.sh
@@ -48,7 +48,7 @@ mkdir -p "${USER_DIRS[@]}"
 ########## scripts #############
 cp -rf bin/* ~/.local/bin
 
-LN_EXCLUDE_DIRS=(i3blocks bemenu)
+LN_EXCLUDE_DIRS=(i3blocks bemenu sway)
 
 ln_exclude_dirs_cmp=" ${LN_EXCLUDE_DIRS[*]} "
 for sdir in bin/*; do
@@ -59,7 +59,7 @@ for sdir in bin/*; do
 		-exec rm {} \;
 	#shellcheck disable=SC2016
 	find ~/.local/bin/"$sdir" -maxdepth 1 -type f -perm -u+rwx | \
-		xargs -0 -d \\n -n 1 sh -c 'ln -s "$1" "/$HOME/.local/bin/$(basename "$(dirname "$1")")-${1##*/}"' sh
+		xargs -0 -d \\n -n 1 sh -c 'ln -s "$1" "/$HOME/.local/bin/$(basename "$(dirname "$1")")-$(basename "$1" .sh)"' sh
 done
 ################################
 
diff --git a/linux-compat/home/env.sh b/linux-compat/home/env.sh
new file mode 100755
index 0000000..3406e6f
--- /dev/null
+++ b/linux-compat/home/env.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+export BASIC_PACMAN="vim less"