diff --git a/app-catalogue.sh b/app-catalogue.sh
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+++ b/app-catalogue.sh
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+#!/bin/bash
+# Usage: ./app-catalogue.sh
+# 
+# Gather metadata from Co-op Cloud apps in $ABRA_DIR/apps (default
+# ~/.abra/apps), and format it as a Markdown table for this page:
+# https://docs.cloud.autonomic.zone/apps/
+
+stack_dir="${ABRA_DIR:-$HOME/.abra}/apps/"
+
+cd "$stack_dir"
+
+# load all README files into ENV_FILES array
+mapfile -t readmes < <(find -L . -name "README.md")
+# FIXME 3wc: requires bash 4, use for loop instead
+
+base_url="https://git.autonomic.zone/coop-cloud"
+
+cat_apps=()
+cat_development=()
+cat_utilities=()
+cat_graveyard=()
+
+get_var() {
+	echo "$1" | grep "$2" | sed 's/^[^:]*: //'
+}
+
+# shellcheck disable=SC2120
+trim() {
+	# accept input as argument or from STDIN, see here:
+	# https://zwbetz.com/passing-input-to-a-bash-function-via-arguments-or-stdin/
+	# shellcheck disable=SC2155
+	local input="$([[ -p /dev/stdin ]] && cat - || echo "$@")"
+	[[ -z "$input" ]] && return 1
+	echo "$input" | tr -d ' '
+}
+
+# shellcheck disable=SC2120
+prettify() {
+	# as above
+	# shellcheck disable=SC2155
+	local input="$([[ -p /dev/stdin ]] && cat - || echo "$@")"
+	[[ -z "$input" ]] && return 1
+
+	echo "$input" | sed -e 's/Yes/✅/' -e 's/No/❌/' -e 's/N\/A/⛔/'
+}
+
+for readme in "${readmes[@]}"; do
+	type="$(basename "${readme%README.md}")"
+	if [ "$type" = "example" ]; then
+		continue
+	fi
+	title="$(grep '^# ' "$type/README.md" | sed 's/^# //' )"
+	# find section between 'metadata' and 'endmetadata' comments
+	metadata="$(awk '/-- metadata --/,/-- endmetadata --/' "$type/README.md")"
+	status="$(get_var "$metadata" "Status")"
+	category="$(get_var "$metadata" "Category" | cut -d',' -f2 | trim)"
+
+	if [ -z "$category" ]; then
+		echo "ERROR: missing category for $type"
+		continue
+	fi
+
+	image="$(get_var "$metadata" "Image" | cut -d',' -f2 | trim)"
+	healthcheck="$(get_var "$metadata" "Healthcheck" | prettify)"
+	backups="$(get_var "$metadata" "Backups" | prettify)"
+	email="$(get_var "$metadata" "Email" | prettify)"
+	tests="$(get_var "$metadata" "Tests" | prettify)"
+	sso="$(get_var "$metadata" "SSO" | prettify)"
+
+	row="| [$title]($base_url/$type) | $status | $image | $healthcheck | $backups | $email | $tests | $sso |"
+
+	category_lower="$(echo "$category" | tr '[:upper:]' '[:lower:]')"
+	eval "cat_$category_lower+=( '$row' )"
+done
+
+headers="
+| **Name** | **Status** | **Image** | **Healtcheck** | **Backups** | **Email** | **CI** | **Single-Sign-On** |
+| --- | --- | --- | --- | --- | --- | --- | --- |"
+
+echo "## Applications"
+echo "$headers"
+printf '%s\n' "${cat_apps[@]}" | sort
+
+echo
+
+echo "## Developer tools"
+echo "$headers"
+printf '%s\n' "${cat_development[@]}" | sort
+
+echo
+
+echo "## Utilities"
+echo "$headers"
+printf '%s\n' "${cat_utilities[@]}" | sort
+
+echo
+
+echo "## Graveyard"
+echo "$headers"
+printf '%s\n' "${cat_graveyard[@]}" | sort