diff --git a/neetbsd.sh b/neetbsd.sh
index 16c42c5..d0880f7 100644
--- a/neetbsd.sh
+++ b/neetbsd.sh
@@ -2,8 +2,6 @@
 
 # NEETBSD
 #
-# DESCRIPTION
-#
 # NetBSD post-installation script via pkgin <https://pkgin.net/>.
 #
 # DETAILS
@@ -20,7 +18,7 @@
 
 
 
-echo 'NEETBSD' && echo 'UNFINISHED SCRIPT DO NOT USE' # DEV
+echo 'NEETBSD' && echo '<!!!> UNFINISHED SCRIPT DO NOT USE' # DEV warning
 
 # SOFTWARE INSTALLATION
 
@@ -29,19 +27,36 @@ echo 'Installing software for NEETBSD'
 # BINARY PACKAGES via pkgin
 echo 'Installing binary packages via the root user using su'
 echo 'This operation might take a long moment to complete!!'
-su root 'pkgin install enlightenment firefox-esr xfe grafx2 dillo mumble psi kvirc lxqt-archiver stalonetray htop mc ncdu ufetch wget' # FIX-ME: uncertain packages are left out - xine/mpv(?) and [xterm](terminology) # <!!!> ncdu is ambiguous
+su root -c 'pkgin install enlightenment firefox-esr xfe grafx2 dillo mumble psi kvirc lxqt-archiver stalonetray htop mc ncdu ufetch wget' # FIX-ME: uncertain packages are left out - xine/mpv(?) and [xterm](terminology) # <!!!> ncdu is ambiguous
 
 # COMPILATION via various utilities
 echo 'Software compilation - this operation should be rapid'
-echo 'Compiling xdiskusage'
-# TO-DO
-# = CHECK IF ALREADY INSTALLED VIA which
-#   CHECK VERSION VIA curl https://xdiskusage.sourceforge.net/ | grep '1.60'
-#   su to pkgin install fltk-1.3.9, wget, tar, change line where there's
-#   FreeBSD to also include NetBSD, ./configure && make CPPFLAGS=
-#   -I/usr/pkg/include [+ other arg to include X11 /usr/X11R7/include] && su
-#   to make install clean + verify if there is a .desktop else create it
-echo 'Software compilation done'
+# Is it installed? `command -v` is +/- equivalent to `which`
+if [ -x "$(command -v xdiskusage)" ]; then
+  echo 'xdiskusage is already installed.'
+else
+  echo 'Compiling xdiskusage'
+  echo '<!!!> xdiskusage version 1.60 - please check if this is the latest!'
+  curl --silent https://xdiskusage.sourceforge.net/ | grep 'Download source'
+  sleep 5 # Some time to read the above warning and result
+  su root -c 'pkgin install fltk-1.3.9' # FLTK is the sole dependency
+  wget https://xdiskusage.sourceforge.net/xdiskusage-1.60.tgz # Download src
+  mv xdiskusage-1.60.tgz /tmp # This operation shall be done in a tmp area
+  cd /tmp
+  tar xfv xdiskusage-1.60.tgz # Extract
+  cd xdiskusage-1.60
+  ed xdiskusage.C <<'END' # ed(1) replacing 'APPLE' with 'NetBSD'
+s/defined(__APPLE__)/defined(__NetBSD__)/g
+wq
+END # xdiskusage now acts like the FreeBSD version - probably hacky, but it seems functional
+  # Configure, compile, install, clean
+  ./configure && make CPPFLAGS=-I/usr/pkg/include -I/usr/X11R7/include && su root -c 'make install clean'
+  # .desktop
+  su root -c 'printf "[Desktop Entry]\nType=Application\nName=xdiskusage\nComment=Graphical disk usage program\nTerminal=false\nTryExec=xdiskusage\nExec=/usr/local/bin/xdiskusage\nCategories=Utility" > /usr/share/applications/xdiskusage.desktop'
+  cd .. # Go back to /tmp
+  rm -r /tmp/xdiskusage-1.60* # Erase tmp compilation data
+  echo 'Software compilation done'
+fi
 
 echo 'SOFTWARE INSTALLATION FINISHED'