diff --git a/astronaut/astronaut b/astronaut/astronaut
index ac4dcd3..836df3e 100755
--- a/astronaut/astronaut
+++ b/astronaut/astronaut
@@ -4,7 +4,8 @@
 dir_build="$PWD/build"  # Temporary directory to build packages
 dir_source="$PWD/source"  # Directory where the package sources will be placed
 dir_install="$PWD/install"  # Directory where the package will be installed
-prefix="/usr"  # Prefix directory
+dir_sysroot="/"  # The root dir (Used for dirs like etc and var)
+dir_prefix="$dir_sysroot/usr"  # Prefix directory
 cmd_download="curl -# -L -o {dst} {src}"  # Command to execute to download files
 cmd_extract="tar -x -C {dst} -f {src}"  # Command to execute to extract files
 enable_check=true  # Run the test suite of packages
@@ -30,6 +31,7 @@ Usage: $0 [-sbip <dir>] [-IcCd] <satellite>
 -s   Set source directory
 -i   Set install directory
 -p   Set prefix directory
+-r   Set root directory
 -I   Nuke install directory before build
 -c/C Enable/Disable package checking
 -d   Only download package files
@@ -62,7 +64,10 @@ while getopts "h?s:b:i:p:IcCdv" opt; do
             dir_install="$(realpath "$OPTARG")"
             ;;
         p)
-            prefix="$(realpath "$OPTARG")"
+            dir_prefix="$(realpath "$OPTARG")"
+            ;;
+        r)
+            dir_sysroot="$(realpath "$OPTARG")"
             ;;
         I)
             _nuke_dir_install=true
diff --git a/astronaut/hello.sat b/astronaut/hello.sat
index 7007a38..80bfbab 100644
--- a/astronaut/hello.sat
+++ b/astronaut/hello.sat
@@ -17,7 +17,8 @@ vcs_compile=true  # Set this to true if it's a vcs package, and we've just downl
 # - dir_source (This is handled by the commands detailed below. You should have no use for it.)
 # "Look, but don't touch"-variables:
 # - dir_install
-# - prefix
+# - dir_prefix
+# - dir_sysroot
 # "You'll only make your own life more difficult if you use them wrong, so I don't care what you do"-variables:
 #   (Only use these to change the behaviour of some commands over the whole script.)
 # - cmd_download
@@ -60,7 +61,7 @@ extract "$name-$version.tar.gz" \
 
 # Compilation instructions
 cd "$name-$version"
-./configure --prefix="$prefix"
+./configure --prefix="$dir_prefix"
 make
 
 # Know if the user wants the package to be checked
diff --git a/astronaut/template.sat b/astronaut/template.sat
index 602a118..e2ff2c3 100644
--- a/astronaut/template.sat
+++ b/astronaut/template.sat
@@ -10,7 +10,7 @@ header_end
 
 cd "$name-$version"
 
-./configure --prefix="$prefix"
+./configure --prefix="$dir_prefix"
 make
 do_check make check
 make DESTDIR="$dir_install" install
diff --git a/satellites/astronaut.sat b/satellites/astronaut.sat
index e8f573b..e949f23 100644
--- a/satellites/astronaut.sat
+++ b/satellites/astronaut.sat
@@ -6,8 +6,8 @@ extrafile "freshnaut"
 extrafile "xbps-astronaut"
 header_end
 
-install -D "astronaut" "$dir_install/$prefix/bin/astronaut"
-install -D "freshnaut" "$dir_install/$prefix/bin/freshnaut"
-install -D "xbps-astronaut" "$dir_install/$prefix/bin/xbps-astronaut"
+install -D "astronaut" "$dir_install/$dir_prefix/bin/astronaut"
+install -D "freshnaut" "$dir_install/$dir_prefix/bin/freshnaut"
+install -D "xbps-astronaut" "$dir_install/$dir_prefix/bin/xbps-astronaut"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/bin/ctrulib.sat b/satellites/bin/ctrulib.sat
index da7bf94..d78709c 100644
--- a/satellites/bin/ctrulib.sat
+++ b/satellites/bin/ctrulib.sat
@@ -7,7 +7,7 @@ download "https://sourceforge.net/projects/devkitpro/files/$libname/$version/$li
          "2dffb7826ae3d30a32c9ad773b133a07"
 header_end
 
-mkdir -p "$dir_install/opt/devkitPRO/$libname"
-extract "$libname-$version.tar.bz2" "$dir_install/opt/devkitPRO/$libname"
+mkdir -p "$dir_install/$dir_sysroot/opt/devkitPRO/$libname"
+extract "$libname-$version.tar.bz2" "$dir_install/$dir_sysroot/opt/devkitPRO/$libname"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/bin/default_arm7.sat b/satellites/bin/default_arm7.sat
index d32e9e2..6f643fe 100644
--- a/satellites/bin/default_arm7.sat
+++ b/satellites/bin/default_arm7.sat
@@ -7,7 +7,7 @@ download "https://sourceforge.net/projects/devkitpro/files/default arm7/$version
          "20e3af0f65066cad9a2b948aa5cfd17f"
 header_end
 
-mkdir -p "$dir_install/opt/devkitPRO/$libname"
-extract "$name-$version.tar.bz2" "$dir_install/opt/devkitPRO/$libname"
+mkdir -p "$dir_install/$dir_sysroot/opt/devkitPRO/$libname"
+extract "$name-$version.tar.bz2" "$dir_install/$dir_sysroot/opt/devkitPRO/$libname"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/bin/devkitarm.sat b/satellites/bin/devkitarm.sat
index f107080..be00486 100644
--- a/satellites/bin/devkitarm.sat
+++ b/satellites/bin/devkitarm.sat
@@ -7,8 +7,9 @@ download "https://sourceforge.net/projects/devkitpro/files/$name/${name}_$versio
 extrafile "devkitarm.sh"
 header_end
 
-mkdir -p "$dir_install/opt/devkitPRO"
-extract "${name}_$version-x86_64-linux.tar.bz2" "$dir_install/opt/devkitPRO"
-install -Dm644 devkitarm.sh "$dir_install/etc/profile.d/devkitarm.sh"
+mkdir -p "$dir_install/$dir_sysroot/opt/devkitPRO"
+extract "${name}_$version-x86_64-linux.tar.bz2" "$dir_install/$dir_sysroot/opt/devkitPRO"
+sed -i -e "s@%SYSROOT%@$dir_sysroot@g" devkitarm.sh
+install -Dm644 devkitarm.sh "$dir_install/$dir_sysroot/etc/profile.d/devkitarm.sh"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/bin/extrafiles/devkitarm/devkitarm.sh b/satellites/bin/extrafiles/devkitarm/devkitarm.sh
index ee53818..6443e16 100644
--- a/satellites/bin/extrafiles/devkitarm/devkitarm.sh
+++ b/satellites/bin/extrafiles/devkitarm/devkitarm.sh
@@ -1,3 +1,3 @@
-export DEVKITPRO=/opt/devkitPRO
+export DEVKITPRO="%SYSROOT%/opt/devkitPRO"
 export DEVKITARM="$DEVKITPRO/devkitARM"
 export PATH="$DEVKITARM/bin:$PATH"
diff --git a/satellites/bin/libfat-nds.sat b/satellites/bin/libfat-nds.sat
index 6c3f6a9..7eb2e14 100644
--- a/satellites/bin/libfat-nds.sat
+++ b/satellites/bin/libfat-nds.sat
@@ -7,7 +7,7 @@ download "https://sourceforge.net/projects/devkitpro/files/libfat/$version/$name
          "cc1712a56c8b0c133974936c69599f0e"
 header_end
 
-mkdir -p "$dir_install/opt/devkitPRO/$libname"
-extract "$name-$version.tar.bz2" "$dir_install/opt/devkitPRO/$libname"
+mkdir -p "$dir_install/$dir_sysroot/opt/devkitPRO/$libname"
+extract "$name-$version.tar.bz2" "$dir_install/$dir_sysroot/opt/devkitPRO/$libname"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/bin/libnds.sat b/satellites/bin/libnds.sat
index f48821d..f0af70a 100644
--- a/satellites/bin/libnds.sat
+++ b/satellites/bin/libnds.sat
@@ -6,7 +6,7 @@ download "https://sourceforge.net/projects/devkitpro/files/$name/$version/$name-
          "5928642ff152cf692d8e7167d0e1332b"
 header_end
 
-mkdir -p "$dir_install/opt/devkitPRO/$name"
-extract "$name-$version.tar.bz2" "$dir_install/opt/devkitPRO/$name"
+mkdir -p "$dir_install/$dir_sysroot/opt/devkitPRO/$name"
+extract "$name-$version.tar.bz2" "$dir_install/$dir_sysroot/opt/devkitPRO/$name"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/bin/palemoon.sat b/satellites/bin/palemoon.sat
index cf848b1..f3fd6a9 100644
--- a/satellites/bin/palemoon.sat
+++ b/satellites/bin/palemoon.sat
@@ -7,18 +7,18 @@ download "https://linux.palemoon.org/files/$version/$name-$version.en-US.linux-x
 extrafile "palemoon.desktop"
 header_end
 
-mkdir -p "$dir_install/opt" "$dir_install/$prefix/bin" "$dir_install/$prefix/share/applications" \
-         "$dir_install/$prefix/share/icons/hicolor/16x16/apps" \
-         "$dir_install/$prefix/share/icons/hicolor/32x32/apps" \
-         "$dir_install/$prefix/share/icons/hicolor/48x48/apps" \
-         "$dir_install/$prefix/share/icons/hicolor/128x128/apps" \
+mkdir -p "$dir_install/$dir_sysroot/opt" "$dir_install/$dir_prefix/bin" "$dir_install/$dir_prefix/share/applications" \
+         "$dir_install/$dir_prefix/share/icons/hicolor/16x16/apps" \
+         "$dir_install/$dir_prefix/share/icons/hicolor/32x32/apps" \
+         "$dir_install/$dir_prefix/share/icons/hicolor/48x48/apps" \
+         "$dir_install/$dir_prefix/share/icons/hicolor/128x128/apps" \
 
-extract "$name-$version.en-US.linux-x86_64.tar.bz2" "$dir_install/opt"
-ln -s "/opt/$name/$name" "$dir_install/$prefix/bin/$name"
-ln -s "/opt/$name/browser/chrome/icons/default/default16.png" "$dir_install/$prefix/share/icons/hicolor/16x16/apps/$name.png"
-ln -s "/opt/$name/browser/chrome/icons/default/default32.png" "$dir_install/$prefix/share/icons/hicolor/32x32/apps/$name.png"
-ln -s "/opt/$name/browser/chrome/icons/default/default48.png" "$dir_install/$prefix/share/icons/hicolor/48x48/apps/$name.png"
-ln -s "/opt/$name/browser/icons/mozicon128.png" "$dir_install/$prefix/share/icons/hicolor/128x128/apps/$name.png"
-cp "palemoon.desktop" "$dir_install/$prefix/share/applications/palemoon.desktop"
+extract "$name-$version.en-US.linux-x86_64.tar.bz2" "$dir_install/$dir_sysroot/opt"
+ln -s "$dir_sysroot/opt/$name/$name" "$dir_install/$dir_prefix/bin/$name"
+ln -s "$dir_sysroot/opt/$name/browser/chrome/icons/default/default16.png" "$dir_install/$dir_prefix/share/icons/hicolor/16x16/apps/$name.png"
+ln -s "$dir_sysroot/opt/$name/browser/chrome/icons/default/default32.png" "$dir_install/$dir_prefix/share/icons/hicolor/32x32/apps/$name.png"
+ln -s "$dir_sysroot/opt/$name/browser/chrome/icons/default/default48.png" "$dir_install/$dir_prefix/share/icons/hicolor/48x48/apps/$name.png"
+ln -s "$dir_sysroot/opt/$name/browser/icons/mozicon128.png" "$dir_install/$dir_prefix/share/icons/hicolor/128x128/apps/$name.png"
+cp "palemoon.desktop" "$dir_install/$dir_prefix/share/applications/palemoon.desktop"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/bin/unetbootin.sat b/satellites/bin/unetbootin.sat
index 361cdd9..f633486 100644
--- a/satellites/bin/unetbootin.sat
+++ b/satellites/bin/unetbootin.sat
@@ -6,6 +6,6 @@ dlfile "https://launchpad.net/$name/trunk/$version/+download/$name-linux64-$vers
        "d5d1cddc144fc64d8291c33ebd4f457b"
 header_end
 
-install -D $name-linux64-$version.bin "$dir_install/$prefix/bin/$name"
+install -D $name-linux64-$version.bin "$dir_install/$dir_prefix/bin/$name"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/functions/compile/cmake.sh b/satellites/functions/compile/cmake.sh
index 409e205..4b2f026 100644
--- a/satellites/functions/compile/cmake.sh
+++ b/satellites/functions/compile/cmake.sh
@@ -1,6 +1,6 @@
 compile_cmake_base() {
     mkdir -p build; cd build
-    cmake -DCMAKE_INSTALL_PREFIX="$prefix" -DCMAKE_BUILD_TYPE=Release $@ ..
+    cmake -DCMAKE_INSTALL_PREFIX="$dir_prefix" -DCMAKE_BUILD_TYPE=Release $@ ..
     make
 }
 
@@ -12,5 +12,5 @@ compile_cmake() {
 compile_cmake_installbin() {
     _func_file="$1"; shift
     compile_cmake_base $@
-    install -D "$_func_file" "$dir_install/$prefix/bin/$_func_file"
+    install -D "$_func_file" "$dir_install/$dir_prefix/bin/$_func_file"
 }
diff --git a/satellites/functions/compile/python.sh b/satellites/functions/compile/python.sh
index a3dc741..72e9eef 100644
--- a/satellites/functions/compile/python.sh
+++ b/satellites/functions/compile/python.sh
@@ -1,4 +1,4 @@
 compile_python() {
     _func_ver="$1"; shift
-    python$_func_ver setup.py install --prefix="$prefix" --root="$dir_install" $@
+    python$_func_ver setup.py install --prefix="$dir_prefix" --root="$dir_install" $@
 }
diff --git a/satellites/functions/compile/qt.sh b/satellites/functions/compile/qt.sh
index dd500fa..4d211e6 100644
--- a/satellites/functions/compile/qt.sh
+++ b/satellites/functions/compile/qt.sh
@@ -1,6 +1,6 @@
 compile_qt() {
     _func_ver="$1"; shift
-    qmake-qt$_func_ver PREFIX="$prefix" build_mode=release build_type=shared $@
+    qmake-qt$_func_ver PREFIX="$dir_prefix" build_mode=release build_type=shared $@
     make
     make INSTALL_ROOT="$dir_install" install
 }
diff --git a/satellites/markdown.sat b/satellites/markdown.sat
index f80e396..a25042b 100644
--- a/satellites/markdown.sat
+++ b/satellites/markdown.sat
@@ -9,6 +9,6 @@ header_end
 # TODO: Support other formats, such as zip, with the extract command.
 extract "${name}_$version.zip" "" \
         "unzip -qd {dst} {src}"
-install -D "${name}_$version/$name.pl" "$dir_install/$prefix/bin/markdown"
+install -D "${name}_$version/$name.pl" "$dir_install/$dir_prefix/bin/markdown"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/vcs/ctr.sat b/satellites/vcs/ctr.sat
index 52174fc..2e84bc2 100644
--- a/satellites/vcs/ctr.sat
+++ b/satellites/vcs/ctr.sat
@@ -7,7 +7,7 @@ header_end
 
 getfile vcs; cd vcs
 
-mkdir -p "$dir_install/opt/devkitPRO/devkitARM/arm-none-eabi/include" "$dir_install/opt/devkitPRO/devkitARM/arm-none-eabi/lib"
-make DEVKITARM="$dir_install/opt/devkitPRO/devkitARM" install
+mkdir -p "$dir_install/$dir_sysroot/opt/devkitPRO/devkitARM/arm-none-eabi/include" "$dir_install/$dir_sysroot/opt/devkitPRO/devkitARM/arm-none-eabi/lib"
+make DEVKITARM="$dir_install/$dir_sysroot/opt/devkitPRO/devkitARM" install
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/vcs/ctrff.sat b/satellites/vcs/ctrff.sat
index 228fb7b..2cfec78 100644
--- a/satellites/vcs/ctrff.sat
+++ b/satellites/vcs/ctrff.sat
@@ -7,7 +7,7 @@ header_end
 
 getfile vcs; cd vcs
 
-mkdir -p "$dir_install/opt/devkitPRO/devkitARM/arm-none-eabi/include" "$dir_install/opt/devkitPRO/devkitARM/arm-none-eabi/lib"
-make DEVKITARM="$dir_install/opt/devkitPRO/devkitARM" install
+mkdir -p "$dir_install/$dir_sysroot/opt/devkitPRO/devkitARM/arm-none-eabi/include" "$dir_install/$dir_sysroot/opt/devkitPRO/devkitARM/arm-none-eabi/lib"
+make DEVKITARM="$dir_install/$dir_sysroot/opt/devkitPRO/devkitARM" install
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/vcs/ctrtool.sat b/satellites/vcs/ctrtool.sat
index 480b28c..00b8825 100644
--- a/satellites/vcs/ctrtool.sat
+++ b/satellites/vcs/ctrtool.sat
@@ -8,6 +8,6 @@ header_end
 getfile vcs; cd vcs/ctrtool
 
 make
-install -D ctrtool "$dir_install/$prefix/bin/ctrtool"
+install -D ctrtool "$dir_install/$dir_prefix/bin/ctrtool"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/vcs/ctrulib-git.sat b/satellites/vcs/ctrulib-git.sat
index afc530c..a25945e 100644
--- a/satellites/vcs/ctrulib-git.sat
+++ b/satellites/vcs/ctrulib-git.sat
@@ -7,6 +7,6 @@ header_end
 
 getfile vcs; cd vcs/libctru
 
-make DEVKITPRO="$dir_install/opt/devkitPRO" install
+make DEVKITPRO="$dir_install/$dir_sysroot/opt/devkitPRO" install
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/vcs/letsencrypt.sat b/satellites/vcs/letsencrypt.sat
index 23c0522..df56a8c 100644
--- a/satellites/vcs/letsencrypt.sat
+++ b/satellites/vcs/letsencrypt.sat
@@ -7,6 +7,8 @@ vcs_git "https://github.com/letsencrypt/$name"
 header_end
 
 getfile vcs; cd vcs
-compile_python 3.4
+compile_python 2
+cd acme
+compile_python 2
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/vcs/makerom.sat b/satellites/vcs/makerom.sat
index a8e8e61..a271530 100644
--- a/satellites/vcs/makerom.sat
+++ b/satellites/vcs/makerom.sat
@@ -8,6 +8,6 @@ header_end
 getfile vcs; cd vcs/makerom
 
 make
-install -D makerom "$dir_install/$prefix/bin/makerom"
+install -D makerom "$dir_install/$dir_prefix/bin/makerom"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/vcs/neovim-git.sat b/satellites/vcs/neovim-git.sat
index eecbe3a..209d281 100644
--- a/satellites/vcs/neovim-git.sat
+++ b/satellites/vcs/neovim-git.sat
@@ -6,8 +6,8 @@ name=neovim
 vcs_git "https://github.com/neovim/neovim"
 header_end
 
-getfile vcs; cd vcs
-make CMAKE_BUILD_TYPE=Release CMAKE_EXTRA_FLAGS="-DCMAKE_INSTALL_PREFIX='$prefix'"
+etfile vcs; cd vcs
+make CMAKE_BUILD_TYPE=Release CMAKE_EXTRA_FLAGS="-DCMAKE_INSTALL_PREFIX='$dir_prefix'"
 make DESTDIR="$dir_install" install
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et:
diff --git a/satellites/webfs.sat b/satellites/webfs.sat
index 23a4c8e..3e3a853 100644
--- a/satellites/webfs.sat
+++ b/satellites/webfs.sat
@@ -14,6 +14,6 @@ sed -i -e "s/echo -e/echo/g" mk/Autoconf.mk
 sed -i -e "s@/etc/mime.types@/dev/null@g" GNUmakefile
 
 make
-install -D "${name}d" "$dir_install/$prefix/bin/${name}d"
+install -D "${name}d" "$dir_install/$dir_prefix/bin/${name}d"
 
 # vim:set tabstop=4 shiftwidth=4 syntax=sh et: