diff --git a/AppRun b/AppRun
index b6c6037..dcbb912 100755
--- a/AppRun
+++ b/AppRun
@@ -1,5 +1,5 @@
 #!/bin/sh
 HERE=$(dirname "$(readlink -f "${0}")")
-#export PATH="${HERE}":"${HERE}"/bin:"$PATH"
-#export LD_LIBRARY_PATH="${HERE}"/lib64:"${HERE}"/lib:"$LD_LIBRARY_PATH"
+export PATH="${HERE}":"${HERE}"/bin:"$PATH"
+export LD_LIBRARY_PATH="${HERE}"/lib64:"${HERE}"/lib:"$LD_LIBRARY_PATH"
 "${HERE}"/"$APPDWARF_CMD" "$@"
diff --git a/appdwarf b/appdwarf
index a3787ba..098275e 100755
--- a/appdwarf
+++ b/appdwarf
@@ -1,61 +1,62 @@
-#!/bin/bash
-set -eo pipefail
-IFS=$'\n\t'
-VER=2
+#!/bin/sh
+set -e
+IFS=$(printf '\n\t')
+VER=2.5
+BACK=5
 HERE=$(dirname "$(readlink -f "${0}")")
-source "$HERE/headers"
+. "$HERE/headers" && header || exit 1
 
-usage(){
+if test $# -eq 0; then
+    tput setaf 3
     echo "Usage: $(basename "$0") [option] [FILE/FOLDER/URL] [dwarfs option]"
     echo "  Compress a given AppDir (default)"
+    tput setaf 7
     echo "    -a,  --appimage     Convert a given AppImage to appdwarf" 
     echo "    -B,  --lookback     Change dwarfs block lookback amount"
     echo "    -f,  --folder       Make image mount to a specified folder instead of running AppRun"
     echo "    -s,  --separate     Use old, separated header format"
     echo "    -u,  --url          Fetch AppImage from URL and convert to appdwarf"
-
+    echo
+    tput setaf 4
     echo "    -h,  --help         Print this help text"
     echo "    -v,  --version      Print the appdwarf version"
-}
+    exit 0
+fi
 
 dwarf() {
-    mkdwarfs -i "$1" -o "$(realpath "$1").sh" -B"$back" "${@:2}" --header "$HEAD"
+    mkdwarfs -i "$@" -o "$(realpath "$1").sh" -B"$BACK" --header "$HEAD"
     chmod +x "$(realpath "$1").sh"
 }
 
 appimage() {
-    if [[ -f "$1" ]]
-    then
-        chmod +x "$1"
-        rm -rf squashfs-root
-        case $1 in
-            /*) "$1" --appimage-extract || exit 1 ;;
-            *) ./"$1" --appimage-extract || exit 1 ;;
-        esac
-        dwarf squashfs-root "${@:2}"
-        rm -rf squashfs-root "$1"
-        mv squashfs-root.sh "$(basename "$1" .AppImage)".sh
-    else
+    if [ ! -f "$1" ]; then
+        tput setaf 1
         echo "$1" is not a valid file
         exit 1
     fi
+    chmod +x "$1"
+    rm -rf squashfs-root
+    case $1 in
+        /*) "$1" --appimage-extract || exit 1 ;;
+        *) ./"$1" --appimage-extract || exit 1 ;;
+    esac
+    file="$1"
+    shift
+    dwarf squashfs-root "$@"
+    rm -rf squashfs-root "$file"
+    mv squashfs-root.sh "$(basename "$file" .AppImage)".sh
+    exit 0
 }
 
 
-################################################################
-
-header
-back=5
-
 while true
 do
     case "$1" in
         --help | -h) 
-            usage
-            exit 0
+            exec appdwarf
             ;;
         --version | -v) 
-            tput setaf 2
+            tput setaf 5
             echo appdwarf v"$VER"
             echo Maintained by phantop.
             exit 0
@@ -65,7 +66,7 @@ do
             shift 2
             ;;
         --lookback | -B) 
-            back=$2
+            BACK=$2
             shift 2
             ;;
         --separate | -s) 
@@ -74,18 +75,19 @@ do
             ;;
 
         --appimage | -a) 
-            appimage "${@:2}"
-            exit 0
+            shift
+            appimage "$@"
             ;;
         --url | -u)
-            file=$(basename "$2")
+            shift
+            file=$(basename "$1")
             if which aria2c; then
-                aria2c -x16 -s16 "$2" -o "$file" || exit 1
+                aria2c -x16 -s16 "$1" -o "$file" || exit 1
             else
-                wget "$2" -O "$file" || exit 1
+                wget "$1" -O "$file" || exit 1
             fi
-            appimage "$file" "${@:3}"
-            exit 0
+            shift
+            appimage "$file" "$@"
             ;;
         --) 
             shift; break;;
@@ -94,10 +96,4 @@ do
     esac
 done
 
-if test $# -eq 0; then
-    usage
-    exit 0
-else
-    dwarf "$@"
-    exit 0
-fi
+dwarf "$@"
diff --git a/apps/appimage b/apps/appimage
index ef47cc9..9755c04 100755
--- a/apps/appimage
+++ b/apps/appimage
@@ -1,2 +1,2 @@
-#!/bin/bash
-./github https://raw.githubusercontent.com/AppImage/appimage.github.io/master/apps/$1.md
+#!/bin/sh
+./github https://raw.githubusercontent.com/AppImage/appimage.github.io/master/apps/"$1".md
diff --git a/apps/github b/apps/github
index 680e6a6..a3db5a4 100755
--- a/apps/github
+++ b/apps/github
@@ -1,10 +1,11 @@
-#!/bin/bash
-if ! grep https <<< "$1"; then
+#!/bin/sh
+if ! echo "$1" | grep https ; then
     set -- "https://github.com/$1"
 fi
-LINK2="$(echo $1/releases | sed 's|github.com|api.github.com/repos|')"
-if ! grep github.com <<< "$1"; then
+LINK2="$(echo "$1"/releases | sed 's|github.com|api.github.com/repos|')"
+if ! echo "$1" | grep github.com; then
     LINK2="$(curl "$1" | grep -o https.\*releases | sed 's|github.com|api.github.com/repos|')"
 fi
 LINK3="$(curl "$LINK2" | grep -v arm64 | grep -v armh | grep -om1 https.\*AppImage)"
-appdwarf "${@:2}" -u "$LINK3"
+shift
+appdwarf "$@" -u "$LINK3"
diff --git a/apps/mkchrome b/apps/mkchrome
index bf2d94f..27e47ef 100755
--- a/apps/mkchrome
+++ b/apps/mkchrome
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf
 mkdir -p $DIR
diff --git a/apps/mkdotnet b/apps/mkdotnet
index 4f64994..e0da79c 100755
--- a/apps/mkdotnet
+++ b/apps/mkdotnet
@@ -1,10 +1,10 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf/dotnet
 mkdir -p $DIR
 LINK=https://dotnetcli.azureedge.net/dotnet/Runtime
 VER=$(curl $LINK/LTS/latest.version)
-curl $LINK/$VER/dotnet-runtime-$VER-linux-x64.tar.gz | tar xz -C$DIR
+curl "$LINK/$VER/dotnet-runtime-$VER-linux-x64.tar.gz" | tar xz -C$DIR
 ln -s dotnet $DIR/AppRun
 appdwarf $DIR
 mv $DIR.sh dotnet
diff --git a/apps/mkgo b/apps/mkgo
index 74cc346..61d9b43 100755
--- a/apps/mkgo
+++ b/apps/mkgo
@@ -1,18 +1,12 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf
 mkdir -p $DIR
 LINK=$(curl -sL https://go.dev/dl | grep -om1 dl/go.\*linux-amd64.tar.gz)
 curl -L https://go.dev/"$LINK" | tar xz -C$DIR
 
-cat > $DIR/go/AppRun << 'EOF'
-#!/bin/sh
-HERE=$(dirname $(readlink -f "${0}"))
-export LD_LIBRARY_PATH="${HERE}":$PATH
-"${HERE}"/bin/go $@
-EOF
-
-chmod +x $DIR/go/AppRun
+cp "$(dirname "$(readlink -f "${0}")")"/../AppRun $DIR/go
+sed 5s#/#/bin/# $DIR/go/AppRun
 
 appdwarf $DIR/go
 mv $DIR/go.sh go
diff --git a/apps/mkjava b/apps/mkjava
index 39c9a1b..170982c 100755
--- a/apps/mkjava
+++ b/apps/mkjava
@@ -1,25 +1,18 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf/java
-JRE=$DIR/jre
-VER=$1
 mkdir -p $DIR
-
-LINK=https://api.adoptium.net/v3/binary/latest/$1/ga/linux/x64/jdk/hotspot/normal/eclipse
-curl -L "$LINK" | tar xz -C$DIR
-$DIR/jdk*/bin/jlink --add-modules ALL-MODULE-PATH --output $JRE --strip-debug --no-man-pages --no-header-files --compress=0
-
-
-cat > $JRE/AppRun << 'EOF'
-#!/bin/sh
-HERE=$(dirname $(readlink -f "${0}"))
-export LD_LIBRARY_PATH="${HERE}":$PATH
-"${HERE}"/bin/java $@
-rm -rf ~/javasharedresources
-EOF
-chmod +x $JRE/AppRun
-
+VER=$1
 shift
-appdwarf $JRE $@
-mv $JRE.sh java"$VER"
+
+LINK=https://api.adoptium.net/v3/binary/latest/$VER/ga/linux/x64/jdk/hotspot/normal/eclipse
+curl -L "$LINK" | tar xz -C$DIR
+mv $DIR/jdk* $DIR/jdk
+$DIR/jdk/bin/jlink --add-modules ALL-MODULE-PATH --output $DIR/jre --strip-debug --no-man-pages --no-header-files --compress=0
+
+cp "$(dirname "$(readlink -f "${0}")")"/../AppRun $DIR/jre
+sed -i 5s#/#/bin/# $DIR/jre/AppRun
+
+appdwarf $DIR/jre "$@"
+mv $DIR/jre.sh java"$VER"
 rm -rf $DIR
diff --git a/apps/mkmusl b/apps/mkmusl
index 995d63e..db90038 100755
--- a/apps/mkmusl
+++ b/apps/mkmusl
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf
 mkdir -p $DIR
diff --git a/apps/mknode b/apps/mknode
index 0f3b472..471363d 100755
--- a/apps/mknode
+++ b/apps/mknode
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf
 mkdir -p $DIR
@@ -8,13 +8,9 @@ curl -L "$LINK" | bsdtar xf - -C$DIR
 
 mv $DIR/node* $DIR/node
 strip $DIR/node/bin/node
-cat > $DIR/node/AppRun << 'EOF'
-#!/bin/sh
-HERE=$(dirname $(readlink -f "${0}"))
-export PATH="${HERE}/bin":$PATH
-"${HERE}"/bin/$APPDWARF_CMD $@
-EOF
-chmod +x $DIR/node/AppRun
+
+cp "$(dirname "$(readlinjrek -f "${0}")")"/../AppRun $DIR/node
+sed -i 5s#/#/bin/# $DIR/node/AppRun
 
 appdwarf $DIR/node
 mv $DIR/node.sh node
diff --git a/apps/mkproton b/apps/mkproton
index 37be4ac..d82cba9 100755
--- a/apps/mkproton
+++ b/apps/mkproton
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf/proton
 mkdir -p $DIR
@@ -12,8 +12,8 @@ wget -O$DIR/winetricks https://raw.githubusercontent.com/Winetricks/winetricks/m
 chmod +x $DIR/winetricks
 
 cat > $DIR/AppRun << 'EOF'
-#!/bin/bash
-HERE="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"
+#!/bin/sh
+HERE=$(dirname "$(readlink -f "${0}")")
 
 export WINE="${HERE}"/bin/wine
 export WINE64="${HERE}"/bin/wine64
@@ -35,6 +35,6 @@ fi
 EOF
 chmod +x $DIR/AppRun
 
-appdwarf $DIR $@
+appdwarf $DIR "$@"
 rm -rf $DIR
 mv $DIR.sh proton 
diff --git a/apps/mkpypy b/apps/mkpypy
index b5ce3d5..4d3a6ba 100755
--- a/apps/mkpypy
+++ b/apps/mkpypy
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf
 mkdir -p $DIR
diff --git a/apps/mkrust b/apps/mkrust
index 6baabb9..9dff0b7 100755
--- a/apps/mkrust
+++ b/apps/mkrust
@@ -1,21 +1,17 @@
-#!/bin/bash
-PATH=$(dirname $(readlink -f "${0}"))/..:$PATH
+#!/bin/sh
+PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf
+ARCH=x86_64-unknown-linux-gnu
 mkdir -p $DIR
-LINK=https://static.rust-lang.org/dist/rust-nightly-x86_64-unknown-linux-gnu.tar.gz
+LINK=https://static.rust-lang.org/dist/rust-nightly-$ARCH.tar.gz
 curl -L $LINK | tar xz -C$DIR
 
 mkdir $DIR/rust
-cp -r $DIR/rust*/{cargo,rustc,rust-std*}/* $DIR/rust
+for i in cargo rustc rust-std-$ARCH/; do
+    mv "$DIR/rust-nightly-$ARCH/$i"/* $DIR/rust; done
 
-cat > $DIR/rust/AppRun << 'EOF'
-#!/bin/sh
-HERE=$(dirname $(readlink -f "${0}"))
-export PATH="${HERE}/bin":$PATH
-"${HERE}"/bin/$APPDWARF_CMD $@
-EOF
-
-chmod +x $DIR/rust/AppRun
+cp "$(dirname "$(readlink -f "${0}")")"/../AppRun $DIR/rust
+sed -i 5s#/#/bin/# $DIR/rust/AppRun
 
 appdwarf $DIR/rust
 mv $DIR/rust.sh cargo
diff --git a/apps/mktex b/apps/mktex
index d6c51b0..45b5ef1 100755
--- a/apps/mktex
+++ b/apps/mktex
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 PATH="$(dirname "$(readlink -f "${0}")")/..":"$PATH"
 DIR=/tmp/appdwarf
 mkdir -p $DIR
@@ -42,6 +42,10 @@ EOF
 
 $DIR/tl/install-tl -profile $DIR/tl/prof
 
+cp "$(dirname "$(readlink -f "${0}")")"/../AppRun $DIR/tex
+sed -i 3s#/bin#/bin/x86_64-linux# $DIR/tex/AppRun
+sed -i 5s#/#/bin/x86_64-linux# $DIR/tex/AppRun
+
 cat > $DIR/tex/AppRun << 'EOF'
 #!/bin/sh
 HERE=$(dirname "$(readlink -f "${0}")")
diff --git a/apps/mkwine b/apps/mkwine
index 6255744..b29d810 100755
--- a/apps/mkwine
+++ b/apps/mkwine
@@ -1,10 +1,10 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf/wine
 mkdir -p $DIR
 
 LINK="$(curl https://api.github.com/repos/Kron4ek/Wine-Builds/releases | grep -om1 http.\*-staging-tkg-amd64.tar.xz)"
-curl -L $LINK | tar xJ -C$DIR
+curl -L "$LINK" | tar xJ -C$DIR
 mv $DIR/wine*/* $DIR
 rmdir $DIR/wine*/
 
@@ -12,9 +12,8 @@ wget -O$DIR/winetricks https://raw.githubusercontent.com/Winetricks/winetricks/m
 chmod +x $DIR/winetricks
 
 cat > $DIR/AppRun << 'EOF'
-#!/bin/bash
-HERE="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"
-
+#!/bin/sh
+HERE=$(dirname "$(readlink -f "${0}")")
 export WINE="${HERE}"/bin/wine
 export WINE64="${HERE}"/bin/wine64
 export WINESERVER="${HERE}"/bin/wineserver
@@ -35,6 +34,6 @@ fi
 EOF
 chmod +x $DIR/AppRun
 
-appdwarf $DIR $@
+appdwarf $DIR "$@"
 rm -r $DIR
 mv $DIR.sh wine
diff --git a/apps/rustsolus b/apps/rustsolus
index 8971a6d..aa853ca 100755
--- a/apps/rustsolus
+++ b/apps/rustsolus
@@ -1,25 +1,15 @@
-#!/bin/bash
+#!/bin/sh
 PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
 DIR=/tmp/appdwarf/rust
 mkdir -p $DIR
 
 eopkg fc -o $DIR cargo rust
-unzip -o $DIR/cargo* -d$DIR
-tar xJf $DIR/install.tar.xz -C$DIR
-unzip -o $DIR/rust* -d$DIR
-tar xJf $DIR/install.tar.xz -C$DIR
-rm $DIR/*
+parallel "unzip -op {} install.tar.xz | tar xJf - -C$DIR" ::: $DIR/*.eopkg 
+rm $DIR/*.eopkg
 rm -r $DIR/usr/lib64/rustlib/i686-unknown-linux-gnu
 
-cat > $DIR/usr/AppRun << 'EOF'
-#!/bin/sh
-HERE=$(dirname $(readlink -f "${0}"))
-export PATH="${HERE}/bin":$PATH
-export LD_LIBRARY_PATH="${HERE}"/lib64:$LD_LIBRARY_PATH
-"${HERE}"/bin/$APPDWARF_CMD $@
-EOF
-
-chmod +x $DIR/usr/AppRun
+cp "$(dirname "$(readlink -f "${0}")")"/../AppRun $DIR/usr
+sed -i 5s#/#/bin/# $DIR/usr/AppRun
 
 appdwarf $DIR/usr
 mv $DIR/usr.sh cargo
diff --git a/headers b/headers
index 20b73c0..9290bb4 100755
--- a/headers
+++ b/headers
@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/bin/sh
 HEAD=/tmp/dwarfhead
 header_separate() {
     cat > $HEAD << 'EOF'
 #!/bin/sh
-DIR="$(mktemp -td dwarf_$(basename "$0")XXXXX)"
+DIR="$(mktemp -td dwarf_"$(basename "$0")"XXXXX)"
 ARG="-o offset=auto -o tidy_strategy=swap -o workers=4"
-export APPDWARF_CMD=$(basename "$0")
+export APPDWARF_CMD="$(basename "$0")"
 dwarfs $ARG "$0" "$DIR" 2>/dev/null
 
 "$DIR/AppRun" "$@"
@@ -19,8 +19,8 @@ header() {
     cat > $HEAD << 'EOF'
 #!/bin/sh
 DIR="/tmp/dwarf_$(basename "$0")$(echo "$0" | md5sum | head -c5)"
-export APPDWARF_CMD=$(basename "$0")
-if [ ! -d $DIR ]; then
+export APPDWARF_CMD="$(basename "$0")"
+if [ ! -d "$DIR" ]; then
     mkdir "$DIR"
     ARG="-o offset=auto -o tidy_strategy=swap -o workers=4"
     dwarfs $ARG "$0" "$DIR" 2>/dev/null
diff --git a/zzexe b/zzexe
index 45eb559..2111df5 100755
--- a/zzexe
+++ b/zzexe
@@ -1,7 +1,9 @@
 #!/bin/sh
+# shellcheck disable=SC2016,SC2129
+
 tmp=$(mktemp -u)
 if [ "$1" = "-d" ]; then
-    shift
+    shift #decompress
     tail -n +11 "$1" | zstd -do "$tmp" &&
     mv "$tmp" "$1"
     chmod +x "$1"
@@ -14,6 +16,7 @@ if [ "$1" = "-p" ]; then
     shift
 fi
 
+#file header
 echo '#!/bin/sh' >> "$tmp"
 echo 'out=$(mktemp -t .zzXXXX.'"${1##*.}"\) >> "$tmp"
 cat >> "$tmp" << 'EOF'
@@ -29,6 +32,7 @@ rm "$out" "$dir"/$(basename $out)
 exit $res
 EOF
 
+#compress
 zstdmt --ultra -c22 --long "$1" >> "$tmp" || exit 1
 mv "$tmp" "$1"
 chmod +x "$1"