Add command guards and freeBSD support

config/zshrc

@@ -128,11 +128,17 @@ case $uname in
   OpenBSD)
     export OS="openbsd"
   ;;
+FreeBSD)
+    export OS="freebsd"
+  ;;
   *)
     echo "Can't detect operating system from shell."
   ;;
 esac
 
+if [[ `ps ho command= $(ps ho ppid= $$)` == 'urxvt' ]]; then
+  clear
+fi
 
 # Rust dev
 if [ -d ~/.cargo/ ]
@@ -146,7 +152,9 @@ then
 fi
 
 # Liz stuff lol
-echo "$(curl -fsSL https://icanhazdadjoke.com)" | lolcat
+if command -v lolcat &> /dev/null; then 
+  echo "$(curl -fsSL https://icanhazdadjoke.com)" | lolcat
+fi
 
 export PATH="$PATH:/Volumes/Exodrive/Code/flutter/bin"
 export PATH="$PATH:~/Library/Android/sdk/platform-tools:~/Library/Android/sdk/build-tools"
@@ -157,7 +165,9 @@ export ANDROID_SDK_ROOT=~/Library/Android/sdk
 export ANDROID_NDK_HOME=~/Library/Android/sdk/ndk/25.2.9519653 
 export ANDROID_AVD_HOME=~/.android/avd
 
-export JAVA_HOME="`/usr/libexec/java_home `"
+if [ -f /usr/libexec/java_home ]; then
+  export JAVA_HOME="`/usr/libexec/java_home `"
+fi
 
 # bun completions
 [ -s "/Users/madeline/.bun/_bun" ] && source "/Users/madeline/.bun/_bun"