diff --git a/dotfiles-old/scripts/nmap.sh b/dotfiles-old/scripts/nmap.sh
new file mode 100644
index 0000000..200006f
--- /dev/null
+++ b/dotfiles-old/scripts/nmap.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+# builds and installs nmap 7.80 because the fucking pieces of shit that
+# maintain nmap decided to make 7.90+ NONFREE.
+# i do like nmap and i have nothing personal against the actual maintainers.
+# but come ON.
+
+# anyway...
+
+set -e
+
+FILENAME="nmap-7.80.tar.bz2"
+ORIGINAL_DIST_BZ2="https://nmap.org/dist/nmap-7.80.tar.bz2"
+ARCHIVED_DIST_BZ2="http://web.archive.org/web/20200922062002/https://nmap.org/dist/nmap-7.80.tar.bz2"
+
+cd $HOME/src
+
+curl "$ORIGINAL_DIST_BZ2" >"$FILENAME" || curl "$ARCHIVED_DIST_BZ2" >"$FILENAME"
+
+bzip2 -cd <"$FILENAME" | tar -x
+
+# see, i could do complicated math to determine this based on the filename, or
+# i could hard-code this and let it error if i've inexplicably grabbed
+# nmap-7.8.1
+
+cd "nmap-7.8.0"
+
+./configure
+make
+sudo make install