diff --git a/Jenkinsfile b/Jenkinsfile
index e4a95b3..44725c7 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -6,8 +6,8 @@ pipeline {
     stages {
         stage ('Build') {
             steps {
-                sh 'bash copy_java_files_to_pack.sh'
-                sh 'zip GeyserOptionalPack.mcpack -r . -x ".*" Jenkinsfile required_files.txt copy_java_files_to_pack.sh'
+                sh 'bash prepare_pack.sh -jc'
+                sh 'zip GeyserOptionalPack.mcpack -r . -x ".*" Jenkinsfile required_files.txt prepare_pack.sh'
             }
             post {
                 success {
diff --git a/README.md b/README.md
index 77a3582..206b371 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,15 @@
 # GeyserOptionalPack
 
-Optional Bedrock resource pack to extend Geyser functionality
+Optional Bedrock resource pack to extend Geyser functionality. Learn more at [GeyserMC/GeyserOptionalPack](https://github.com/GeyserMC/GeyserOptionalPack).
 
 ### Implements
 
 - Armor base arms/baseplate visibility
 - Armor stand poses
+- Illusioners
 - Iron golem cracked textures
+- Missing particles
+- Offhand animations
 - Shulker invisibility parity
 - Spectral arrow entity texture
 
@@ -14,7 +17,7 @@ Currently is not in use yet. Stay tuned!
 
 ### Manually building
 
-Run `copy_java_files_to_pack.sh` in this directory and the necessary files from the vanilla jar will be copied to the required directories. Zip up and you're set.
+Run `./prepare_pack.sh` in this directory and the necessary files from the vanilla jar will be copied to the required directories. Zip up and you're set. Optionally, you may compress the output JSON files by running `./prepare_pack.sh -jc`. This should not be done when planning to contribute. You may then package with `zip GeyserOptionalPack.mcpack -r . -x ".*" Jenkinsfile required_files.txt prepare_pack.sh`.
 
 ### Legal
 
diff --git a/copy_java_files_to_pack.sh b/copy_java_files_to_pack.sh
deleted file mode 100755
index 9914e65..0000000
--- a/copy_java_files_to_pack.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-wget https://launcher.mojang.com/v1/objects/37fd3c903861eeff3bc24b71eed48f828b5269c8/client.jar
-unzip client.jar -d extracted/
-IFS=' '
-while read -r p || [ -n "$p" ]; do
-  read -rafilesToCopy<<< "$p"
-  echo "extracted/${filesToCopy[0]} ${filesToCopy[1]}"
-  mkdir -p "${filesToCopy[1]}"
-  cp "extracted/${filesToCopy[0]}" "${filesToCopy[1]}"
-done <required_files.txt
-convert -append extracted/assets/minecraft/textures/particle/sweep_*.png -define png:format=png8 textures/particle/sweep_attack.png
-rm client.jar
-rm -r extracted
\ No newline at end of file
diff --git a/prepare_pack.sh b/prepare_pack.sh
new file mode 100755
index 0000000..6bedfcc
--- /dev/null
+++ b/prepare_pack.sh
@@ -0,0 +1,33 @@
+# Download the client jar from mojang to extract assets
+wget https://launcher.mojang.com/v1/objects/37fd3c903861eeff3bc24b71eed48f828b5269c8/client.jar
+unzip client.jar -d extracted/
+
+# Set input field seperator to space for our while loop
+IFS=' '
+
+# Copy textures defined in required_files.txt over to the pack
+while read -r p || [ -n "$p" ]; do
+  read -rafilesToCopy<<< "$p"
+  echo "extracted/${filesToCopy[0]} ${filesToCopy[1]}"
+  mkdir -p "${filesToCopy[1]}"
+  cp "extracted/${filesToCopy[0]}" "${filesToCopy[1]}"
+done <required_files.txt
+
+# Create required sprites with Imagemagick
+convert -append extracted/assets/minecraft/textures/particle/sweep_*.png -define png:format=png8 textures/particle/sweep_attack.png
+
+rm client.jar
+rm -r extracted
+
+# Set our input field seperator back to new line
+IFS=$'\n'
+
+# One-line our JSON files if the script is called with -jc (./prepare_pack.sh -jc)
+if [[ ${1} == "-jc" ]]
+then
+  for i in $(find . -type f -name "*.json")
+  do
+    # Note that we must use a temp file, as awk does not support in-place editting
+    awk -v ORS= 'BEGIN {FS = OFS = "\""}/^[[:blank:]]*$/ {next}{for (i=1; i<=NF; i+=2) gsub(/[[:space:]]/,"",$i);sub("\r$", "")} 1' ${i} > tmp && mv tmp ${i}
+  done
+fi