diff --git a/ipm_package.bash b/ipm_package.bash
index 3b10572..98c5f43 100644
--- a/ipm_package.bash
+++ b/ipm_package.bash
@@ -1,30 +1,30 @@
 #!/bin/bash
-# to run use bash ipm_package.bash --version x.x.x --ip_name name
-# More safety, by turning some bugs into errors.
+# To run use: bash ipm_package.bash --version x.x.x --ip_name name
+
+# Enable safety options to turn some bugs into errors
 set -o errexit -o pipefail -o nounset
 
-# now enjoy the options in order and nicely split until we see --
-# option --output/-o requires 1 argument
-LONGOPTS=version:ip_name:
+# Define the options for getopt
+LONGOPTS=version:,ip_name:
 OPTIONS=
 
-# -temporarily store output to be able to check for errors
-# -activate quoting/enhanced mode (e.g. by writing out "--options")
-# -pass arguments only via   -- "$@"   to separate them correctly
-# -if getopt fails, it complains itself to stdout
+# Parse the options using getopt
 PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@") || exit 2
-# read getopt's output this way to handle the quoting right:
+
+# Read getopt's output to handle quoting correctly
 eval set -- "$PARSED"
-unset PARSED
 
+# Initialize variables
+version=""
+ip_name=""
 
+# Process the options
 while true; do
     case "$1" in
         --version)
             version="$2"
             shift 2
             ;;
-        --)
         --ip_name)
             ip_name="$2"
             shift 2
@@ -34,26 +34,55 @@ while true; do
             break
             ;;
         *)
-            echo "Programming error"
+            echo "Programming error: unknown option $1"
             exit 3
             ;;
     esac
 done
 
+# Ensure required arguments are set
+if [[ -z "$version" || -z "$ip_name" ]]; then
+    echo "Error: Both --version and --ip_name options are required."
+    exit 1
+fi
+
+# Output the parsed arguments
 echo "+ version=$version"
+echo "+ ip_name=$ip_name"
+
+
+set -x
+
+# Generate the list of files to include in the tarball
+files_to_compress=$(find . \
+    ! -path "./hdl" \
+    ! -path "./hdl/rtl" \
+    ! -path "./hdl/rtl/bus_wrappers" \
+    ! -path "./hdl/rtl/bus_wrappers/dft" \
+    | grep -v "\./verify" \
+    | grep -v "\./ipm_package.bash" \
+    | grep -v ".*\.dev\.v" \
+    | grep -v "\.git" \
+    | grep -v "\.tar\.gz" \
+    | grep -v "\./ip" \
+    | grep -v "\./docs" \
+    | grep -v "\./README.md" \
+    | grep -v "\.\$"; ls "./ip/dependencies.json")
+
+# Print the files that will be compressed
+echo "Files to be compressed:"
+echo "$files_to_compress"
+
+# Write the list of files to a temporary file
+temp_file=$(mktemp)
+echo "$files_to_compress" > "$temp_file"
 
-# zip needed files
+# Create the tarball using the temporary file
+tar czf v$version.tar.gz --files-from="$temp_file"
 
+# Clean up the temporary file
+rm -f "$temp_file"
 
-tar czf v$version.tar.gz --files-from <(find . | grep -v "\./verify" | grep -v "\./fw/Doxyfile" | grep -v "\./ipm_package.bash" | grep -v ".*\.dev\.v" | grep -v "\./hdl/rtl/bus_wrappers/dft" | grep -v "\.git" | grep -v "\.tar\.gz" | grep -v "\./ip" | grep -v "\./docs" | grep -v "\.\$"; ls "./ip/dependencies.json")
-# tar czf v$version.tar.gz \
-#     --exclude='verify' \
-#     --exclude='hdl/rtl/bus_wrappers/dft' \
-#     --exclude='hdl/rtl/bus_wrappers/*.dev.v' \
-#     --exclude='ipm_package.bash' \
-#     --exclude='fw/Doxyfile' \
-#     --include='*.c' \
-#     *
 # get checksum
 shasum -a 256 v$version.tar.gz > v$version.tar.gz.sha256
 
@@ -61,6 +90,41 @@ shasum -a 256 v$version.tar.gz > v$version.tar.gz.sha256
 sed -i "s/version.*/version: v$version/" *.yaml
 sed -i "s/date.*/date: $(date +"%Y-%m-%d")/" *.yaml
 
+# Extract information from YAML using sed
+date=$(sed -n 's/^[[:space:]]*date:[[:space:]]*//p' $ip_name.yaml)
+maturity=$(sed -n 's/^[[:space:]]*status:[[:space:]]*//p' $ip_name.yaml)
+bus=$(sed -n '/^[[:space:]]*bus:/,/^[[:space:]]*type:/p' $ip_name.yaml | sed -n 's/^[[:space:]]*-[[:space:]]*//p' | paste -sd "," -)
+type=$(sed -n 's/^[[:space:]]*type:[[:space:]]*//p' $ip_name.yaml)
+width=$(sed -n 's/^[[:space:]]*width":[[:space:]]*//p' $ip_name.yaml)
+height=$(sed -n 's/^[[:space:]]*height":[[:space:]]*//p' $ip_name.yaml)
+cell_count=$(sed -n '/^[[:space:]]*cell_count:/,/^[[:space:]]*width:/p' $ip_name.yaml | sed -n 's/^[[:space:]]*-[[:space:]]*//p' | paste -sd "," -)
+clock_freq_mhz=$(sed -n '/^[[:space:]]*clock_freq_mhz:/,/^[[:space:]]*digital_supply_voltage:/p' $ip_name.yaml | sed -n 's/^[[:space:]]*-[[:space:]]*//p' | paste -sd "," -)
+supply_voltage=$(sed -n 's/^[[:space:]]*digital_supply_voltage:[[:space:]]*//p' $ip_name.yaml)
+sha256=$(cat v$version.tar.gz.sha256 | awk '{print $1}')
+
+# Format JSON section
+json_section=$(cat <<EOF
+  ,"release": {
+      "v$version": {
+          "date": "$date",
+          "maturity": "$maturity",
+          "bus": [
+              "$bus"
+          ],
+          "type": "$type",
+          "width": "$width",
+          "height": "$height",
+          "cell_count": "$cell_count",
+          "clock_freq_mhz": "$clock_freq_mhz",
+          "supply_voltage": [
+              "$supply_voltage"
+          ],
+          "sha256": "$sha256"
+      }
+EOF
+)
+
+
 # create tag
 git tag -a $ip_name-v$version -m "Release version $version"
 git push origin $ip_name-v$version
@@ -71,5 +135,5 @@ if gh release view $ip_name-v$version > /dev/null 2>&1; then
     echo "Release $ip_name-v$version already exists. Skipping..."
 else
     echo "Creating release $ip_name-v$version..."
-    gh release create $ip_name-v$version v$version.tar.gz -t "$ip_name-v$version" --notes "sha256: $(cat v$version.tar.gz.sha256)"
+    gh release create $ip_name-v$version v$version.tar.gz -t "$ip_name-v$version" --notes "$json_section"
 fi