diff --git a/README.md b/README.md
index cc5e0ce..cb2a3a3 100644
--- a/README.md
+++ b/README.md
@@ -59,11 +59,18 @@ and then run
 
     docker-compose build
 
-### You can push your new container to a docker container repository (I use my Forgejo instance!)
+You can push your new container to a docker container repository (I use my Forgejo instance!)
 
     docker push forge.magnificent.nz/lightweight/webservices-app:latest
 
-### To start it up (and tail the logs - CTRL-C to quit out of the logs without affecting running container)
+
+### To deploy the new container
+
+At the location you're running production, pull the updated container
+
+    docker-compose pull
+
+To start it up (and tail the logs - CTRL-C to quit out of the logs without affecting running container)
 
     docker-compose up -d && docker-compose logs -f
 
diff --git a/src/lib/components/CollapsibleSection.svelte b/src/lib/components/CollapsibleSection.svelte
new file mode 100644
index 0000000..cb701e5
--- /dev/null
+++ b/src/lib/components/CollapsibleSection.svelte
@@ -0,0 +1,43 @@
+<script>
+    // Ref: https://svelte.dev/repl/a5f4d395b15a44d48a6b2239ef705fc4?version=3.35.0
+    // based on suggestions from:
+    // Inclusive Components by Heydon Pickering https://inclusive-components.design/collapsible-sections/
+    export let headerText;
+
+    let expanded = false
+</script>
+
+<div class="collapsible">
+    <h3>
+        <button aria-expanded={expanded} on:click={() => expanded = !expanded}>{headerText}
+            <svg viewBox="0 0 20 20" fill="none" >
+                <path class="vert" d="M10 1V19" stroke="black" stroke-width="2"/>
+                <path d="M1 10L19 10" stroke="black" stroke-width="2"/>
+            </svg>
+        </button>
+    </h3>
+
+    <div class='contents' hidden={!expanded}>
+        <slot></slot>
+    </div>
+</div>
+
+<style>
+  .collapsible { border-bottom: 1px solid var(--gray-light, #eee); }
+  h3 { margin: 0; }
+  button {
+    background-color: var(--background, #fff);
+    color: var(--gray-darkest, #282828);
+    display: flex;
+    justify-content: space-between;
+    width: 100%;
+	border: none;
+	margin: 0;
+	padding: 1em 0.5em;
+  }
+  button[aria-expanded="true"] {  border-bottom: 1px solid var(--gray-light, #eee); }
+  button[aria-expanded="true"] .vert { display: none; }
+  button:focus svg { outline: 2px solid; }
+  button [aria-expanded="true"] rect { fill: currentColor; }
+  svg { height: 0.7em; width: 0.7em; }
+</style>
diff --git a/src/lib/components/Filterable.svelte b/src/lib/components/Filterable.svelte
index e454e2c..fd311f8 100644
--- a/src/lib/components/Filterable.svelte
+++ b/src/lib/components/Filterable.svelte
@@ -23,7 +23,7 @@
 		console.log('joinActive');
 		console.log('filterValues: ', filterValues);
 		if (isActive.length) return formatter.format(isActive);
-		return 'None';
+		return 'No';
 	}
 
 	function getActive($f) {
@@ -88,11 +88,11 @@
 	<span class="filter {context}" class:active={filter.active}
 		on:click="{() => { filter.active = !filter.active; updateFilterValues(filter);}}"
 		on:keypress="{() => {filter.active = !filter.active; updateFilterValues(filter);}}"
-		name="{filter.id}" role="button" tabindex={tabindex + filter.id}>{filter.name} ({filter.id})</span><wbr/>
+		name="{filter.id}" role="button" tabindex={tabindex + filter.id}>{filter.name}</span><wbr/>
 {/each}
 </div>
 
-<p>{activeFiltersString} {filterText} active.</p>
+<!--<p>{activeFiltersString} {filterText} active.</p>-->
 
 <style>
 	h2 {
@@ -122,6 +122,7 @@
 		grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));*/
 	}
 	.filter {
+        font-size: 80%;
 		width: 80px;
 		height: auto;
 		border: 1px #aaa solid;
diff --git a/src/lib/components/filter.js b/src/lib/components/filter.js
new file mode 100644
index 0000000..e70cc4a
--- /dev/null
+++ b/src/lib/components/filter.js
@@ -0,0 +1,19 @@
+import { writable } from 'svelte/store';
+import { getContext, setContext } from 'svelte';
+
+export function setFilter(context) {
+	let contextFilter = writable(0);
+	console.log('setFilter: ', contextFilter);
+	contextFilter.subscribe((value) => {
+		console.log('initial value: ', value);
+	});
+	setContext(context, contextFilter);
+	console.log('contextFilter (' + context + '): ', contextFilter);
+}
+
+export function getFilter(context) {
+	console.log('looking for writable for context ', context);
+	let f = getContext(context);
+	console.log('returning filter writable: ', f);
+	return f;
+}
diff --git a/src/lib/references.js b/src/lib/references.js
index ccffb7f..6043c5d 100644
--- a/src/lib/references.js
+++ b/src/lib/references.js
@@ -75,80 +75,5 @@ export const references = {
 		'Webserver',
 		'Website Analytics'
 	],
-	copyleft_list: ['AGPL-3', 'AGPL-3+', 'GPL', 'GPL-2', 'GPL-2+', 'GPL-3', 'GPL-3+', 'LGPL-3'],
-	category_filter_list: [
-		'App Ecosystem',
-		'Application Design',
-		'Asset Management',
-		'Association Management',
-		'Association Management System',
-		'Blog Syndication',
-		'Book Reviews',
-		'Calendar',
-		'Collaborative',
-		'Collaborative Markdown Editing',
-		'Collaborative Wiki',
-		'Content Management Systems',
-		'Digital Media Sales',
-		'Document Management',
-		'Email Marketing Automation',
-		'Email Services',
-		'Enterprise Resource Planning',
-		'Event Management',
-		'Facial Recognition',
-		'Facility Booking',
-		'Federated Messaging',
-		'Fediverse',
-		'File Synchronisation',
-		'Forum',
-		'Framasoft',
-		'Home Automation',
-		'Home Security',
-		'Image Backup',
-		'Image Gallery',
-		'Kanban Project Management',
-		'Learning Management System',
-		'Link Ranking',
-		'Link Sharing',
-		'Link Shortener',
-		'Membership Management',
-		'Messaging Cache',
-		'Micro-blogging',
-		'Multi-Domain Server',
-		'Multimedia',
-		'Music Discovery',
-		'Music Streaming',
-		'Network Infrastructure Monitoring',
-		'Newsletters',
-		'Online Forms',
-		'Password Manager',
-		'Photos',
-		'Portfolio Management',
-		'Privacy',
-		'Productivity',
-		'Reading List',
-		'Remote Desktop Sharing',
-		'Remote Incremental Encrypted System Backups',
-		'Reverse Proxy',
-		'Rich Messaging Client',
-		'Rich Messaging Server',
-		'Scheduling',
-		'Server Monitoring',
-		'Share Secrets Management',
-		'Single Sign-On',
-		'Social Bookmarking',
-		'Social Media',
-		'Software Development Forge',
-		'Software Interface Designer',
-		'Streaming',
-		'Surveys',
-		'TURN/STUN Server',
-		'Video',
-		'Video Conferencing',
-		'Video Surveillance',
-		'Visualisation of Time Series Data',
-		'Webmail',
-		'Webserver',
-		'Website Analytics'
-	]
+	copyleft_list: ['AGPL-3', 'AGPL-3+', 'GPL', 'GPL-2', 'GPL-2+', 'GPL-3', 'GPL-3+', 'LGPL-3']
 };
diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 36975f4..84fc96f 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -6,8 +6,11 @@
 	import { references } from '$lib/references.js';
 	import { colours } from '$lib/colours.js';
 
+	// the filters
 	import { setFilter, getFilter } from '$lib/components/filter.js';
 	import Filterable from '$lib/components/Filterable.svelte';
+	// collapsible sections
+	import CollapsibleSection from '$lib/components/CollapsibleSection.svelte'
 
 	//console.log('colours: ', colours);
 
@@ -93,15 +96,9 @@
                 hosts[key] = host;
             }
         }
-        //console.log('webservices.affiliates: ', webservices.affiliates);
         for (let key in webservices.affiliates) {
-            //console.log('key: ', key);
             let affiliate = webservices.affiliates[key];
-            //console.log('affiliate assignment: ', affiliate);
             affiliates[key] = affiliate;
-            // if (affiliate.hasOwnProperty('name')) {
-            // affiliate_data[key] = affiliate;
-            // }
         }
 
         return {
@@ -242,29 +239,38 @@
 		const set2 = new Set(b);
 
 		const intersection = [...set1].filter((element) => set2.has(element));
-		//console.log('intersection = ', intersection);
+		console.log('intersection = ', intersection);
 		return intersection;
 	}
 
+	// converts a filter with id, name, and active fields into an array of names
+	function flattenFilter(filter) {
+		let flat = [];
+	    if (filter.constructor === Array) {
+			filter.forEach(function(e) { if (e.active) flat.push(e.name) });
+	    }
+		return flat;
+	}
+
 	// filter technologies based on a list of Categories
 	function filterTechnologiesByCategoryList(technologies, list) {
 		console.log('looking for tech in categories: ', list);
 		const included = [];
-		technologies.forEach(function (tech, index) {
-			//console.log('tech(' + index + '): ', tech);
+		technologies.forEach(function (tech) {
 			if (hasInstances(tech)) {
 				const intersection = inCommon(tech.categories, list);
 				//console.log('categories: ', tech.categories);
 				//console.log('list: ', list);
-				//console.log('intersection: ', intersection);
+				console.log('intersection: ', intersection);
 				if (intersection && intersection.constructor === Array) {
-					//console.log('intersection length: '. intersection.length);
+					//console.log('found intersection!', intersection.constructor);
+					console.log('intersection length: ', intersection.length);
 					if (intersection.length > 0) {
 						//console.log('including tech: ', tech);
 						included.push(tech);
 					}
 				} else {
-					//console.log('intersection not array');
+					console.log('intersection not array');
 				}
 			}
 		});
@@ -273,7 +279,6 @@
 	}
 
 	const results = processData(webservices);
-	//console.log('results: ', results);
 
 	//const technologies = webservices.technologies;
 	//console.log(technologies);
@@ -312,29 +317,20 @@
 	const affiliate_colours = affiliateColours($affiliateFilter, colours, affiliates);
 	console.log('affiliate_colours:',affiliate_colours);
 
-	//console.log('categories array: ', results.tech_tags.categories);
-	//console.log('categories keys: ', categories);
+	let filteredTechnologies;
+	let technologies;
 
-	//console.log('references: ', references);
-	/*console.log('category_list: ', category_list);
-	//console.log('analogue_list: ', analogue_list);
-	console.log('license_list: ', license_list);
-	console.log('status_list: ', status_list);
-	console.log('affiliate_list: ', affiliate_list);
-	console.log('hosts_list: ', host_list);*/
+	// reactive stuff...
+	$: {
+		console.log('about to filterTechnologiesByCategoryList');
+		filteredTechnologies = filterTechnologiesByCategoryList(results.active_services, flattenFilter($categoryFilter));
+		const technologies = sortTechnologies(filteredTechnologies);
+	}
 
-
-	const filtered_technologies = filterTechnologiesByCategoryList(
-		results.active_services,
-		references.full_category_list,
-//		references.category_filter_list
-	);
-	const technologies = sortTechnologies(filtered_technologies);
-
-	function flipOn(list, id) {
+	/*function flipOn(list, id) {
 	    console.log('list: ' + list + ', id: ' + id);
 	    return true;
-	}
+	}*/
 
 </script>
 
@@ -354,40 +350,54 @@
 			<li>Total number of services: {results.total_instances}</li>
 		</ul>
 	</div>
-	<div class="filters">
-		<div class="filter categories">
-			<Filterable filterValues={categoryFilter} context={'categories'}>
-				<h2 slot="h2">Categories</h2>
-			</Filterable>
+	<CollapsibleSection  headerText={'Show or Hide Filters'}>
+		<div class="filters">
+			<CollapsibleSection  headerText={'Show or Hide Software Catergory Filter'}>
+				<div class="filter categories">
+					<Filterable filterValues={categoryFilter} context={'categories'}>
+						<h2 slot="h2">Categories</h2>
+					</Filterable>
+				</div>
+			</CollapsibleSection>
+			<CollapsibleSection  headerText={'Show or Hide Software Analogue Filter'}>
+				<div class="filter analogues">
+					<Filterable filterValues={analogueFilter} context={'analogues'}>
+						<h2 slot="h2">Analogues</h2>
+					</Filterable>
+				</div>
+			</CollapsibleSection>
+			<CollapsibleSection  headerText={'Show or Hide License Filter'}>
+				<div class="filter licenses">
+					<Filterable filterValues={licenseFilter} context={'licenses'}>
+						<h2 slot="h2">Open Source & Copyleft Licenses</h2>
+					</Filterable>
+				</div>
+			</CollapsibleSection>
+			<CollapsibleSection  headerText={'Show or Hide Service Status Filter'}>
+				<div class="filter statuses">
+					<Filterable filterValues={statusFilter} context={'statuses'}>
+						<h2 slot="h2">Statuses</h2>
+					</Filterable>
+				</div>
+			</CollapsibleSection>
+			<CollapsibleSection  headerText={'Show or Hide Service Affiliates Filter'}>
+				<div class="filter affilates">
+					<Filterable filterValues={affiliateFilter} context={'affiliates'}>
+						<h2 slot="h2">Affiliates</h2>
+					</Filterable>
+				</div>
+			</CollapsibleSection>
+			<CollapsibleSection  headerText={'Show or Hide Service Host filter'}>
+				<div class="filter hosts">
+					<Filterable filterValues={hostFilter} context={'hosts'}>
+						<h2 slot="h2">Hosts</h2>
+					</Filterable>
+				</div>
+			</CollapsibleSection>
 		</div>
-		<div class="filter analogues">
-			<Filterable filterValues={analogueFilter} context={'analogues'}>
-				<h2 slot="h2">Analogues</h2>
-			</Filterable>
-		</div>
-		<div class="filter licenses">
-			<Filterable filterValues={licenseFilter} context={'licenses'}>
-				<h2 slot="h2">Open Source & Copyleft Licenses</h2>
-			</Filterable>
-		</div>
-		<div class="filter statuses">
-			<Filterable filterValues={statusFilter} context={'statuses'}>
-				<h2 slot="h2">Statuses</h2>
-			</Filterable>
-		</div>
-		<div class="filter affilates">
-			<Filterable filterValues={affiliateFilter} context={'affiliates'}>
-				<h2 slot="h2">Affiliates</h2>
-			</Filterable>
-		</div>
-		<div class="filter hosts">
-			<Filterable filterValues={hostFilter} context={'hosts'}>
-				<h2 slot="h2">Hosts</h2>
-			</Filterable>
-		</div>
-	</div>
+	</CollapsibleSection>
 	<div class="tiles">
-		{#each filtered_technologies as technology}
+		{#each filteredTechnologies as technology}
 			<div class="tile technology">
 				<div class="links">
 					{#if technology.repository}<span class="repository"