diff --git a/Build.sh b/Build.sh
index 38bc9d1..da1d670 100755
--- a/Build.sh
+++ b/Build.sh
@@ -1,6 +1,15 @@
 #!/bin/sh
 SourceApps="SpiderADB WuppiMini"
-HubSdkApps="${SourceApps} Ecoji MatrixStickerHelper"
+HubSdkApps="${SourceApps} MatrixStickerHelper"
+
+quoteVar(){ echo '"'"$1"'"' ;}
+
+getMetaAttr(){
+	file="$1"
+	name="$2"
+	key="$([ -n "$3" ] && echo "$3" || echo "property")"
+	grep '<meta '"$key"'="'"$name"'"' "$file" | grep '>' | cut -d '"' -f4
+}
 
 rm -vrf ./public || true
 cp -vr ./static ./public
@@ -8,10 +17,10 @@ cp -vr ./shared ./public/shared
 
 for App in ${SourceApps}
 do
-	mkdir -p ./public/${App}
-	cd ./source/${App}
+	mkdir -p "./public/${App}"
+	cd "./source/${App}"
 	sh ./Requirements.sh
-	cp -r $(sh ./Build.sh) ../../public/${App}/
+	cp -vr $(sh ./Build.sh) "../../public/${App}/"
 	cd ../..
 done
 
@@ -20,5 +29,18 @@ node ../WriteRedirectPages.js
 
 for App in ${HubSdkApps}
 do
-	echo # TODO write manifest.json files
+	file="./${App}/index.html"
+	name="$(getMetaAttr "${file}" og:title)"
+	description="$(getMetaAttr "${file}" og:description property)"
+	url="$(getMetaAttr "${file}" Url OctoSpaccHubSdk)" #"$(getMetaAttr "${file}" og:url property)"
+	cat << [OctoSpaccHubSdk-WebManifest-EOF] > "./${App}/WebManifest.json"
+	{
+		$(getMetaAttr "${file}" WebManifestExtra OctoSpaccHubSdk | sed s/\'/\"/g)
+		$([ -n "${description}" ] && echo "$(quoteVar description): $(quoteVar "${description}"),")
+		"start_url": "${url}",
+		"scope": "${url}",
+		"name": "${name}"
+	}
+[OctoSpaccHubSdk-WebManifest-EOF]
+	sed -i 's|</head>|<title>'"${name}"'</title><link rel="manifest" href="./WebManifest.json"/></head>|' "${file}"
 done
diff --git a/source/SpiderADB/Requirements.sh b/source/SpiderADB/Requirements.sh
index ee626b4..e39f308 100644
--- a/source/SpiderADB/Requirements.sh
+++ b/source/SpiderADB/Requirements.sh
@@ -1,4 +1,4 @@
 #!/bin/sh
 npm update
 npm install
-yes | npx esbuild
+yes | npx esbuild --help > /dev/null # Install esbuild
diff --git a/source/SpiderADB/SpiderADB.js b/source/SpiderADB/SpiderADB.js
index 49f38ba..7149513 100644
--- a/source/SpiderADB/SpiderADB.js
+++ b/source/SpiderADB/SpiderADB.js
@@ -1,47 +1,35 @@
-import * as Adb from '@yume-chan/adb';
-import * as AdbDaemonWebUsb from '@yume-chan/adb-daemon-webusb';
+import { Adb, AdbDaemonTransport } from '@yume-chan/adb';
+import { AdbDaemonWebUsbDeviceManager, AdbDaemonWebUsbDeviceWatcher } from '@yume-chan/adb-daemon-webusb';
 import AdbWebCredentialStore from '@yume-chan/adb-credential-web';
 import { DecodeUtf8Stream, WrapReadableStream, WrapConsumableStream } from '@yume-chan/stream-extra';
 import { PackageManager } from '@yume-chan/android-bin';
 
 // TODO:
-// * warning on fail to claim USB interface (it may be because of other tabs, or a local adb server)
-// * warn or gracefully handle debug permission not granted
 // * package manager with install/uninstall/dump, debloat tool with default list and import/export
 // * fastboot shell and tools? possible?
 // * logs for Packages section?
 
 (async function(){
 
+$('p$javascriptWarning$').remove();
+$('.holo-section[data-section="about"]').style = null;
+$('p$connectReminder$').hidden = false;
+
 const deviceSelect = $('select$deviceSelect$');
 const terminalOutput = $('textarea$terminalOutput$');
 
-$('button$apkInstall$').onclick = (async function(){
-	// TODO show info popup before actually installing, also allow installing via drag&drop on packages section
-	const fileInput = $('button$apkInstall$').querySelector('input');
-	fileInput.onchange = (function(event){
-		const count = event.target.files.length;
-		if (!count > 0) {
-			return;
-		}
-		alert(`Installing ${count} package(s)...`);
-		const pm = new PackageManager(Device.adb);
-		Array.from(event.target.files).forEach(async function(file, index){
-			try {
-				await pm.installStream(file.size, (new WrapReadableStream(file.stream())).pipeThrough(new WrapConsumableStream()));
-				alert(`Successfully installed package ${index + 1} of ${count}.`);
-				refreshPackagesList();
-			} catch (err) {
-				alert(err);
-			}
-		});
-	});
-	fileInput.click();
-});
-
 let Device = {};
 const CredentialStore = new AdbWebCredentialStore();
 
+function popupBox (text) {
+	$('p$popupBox$').hidden = null;
+	$('p$popupBox$').innerHTML = `${text} <button>X</button>`;
+	$('p$popupBox$').querySelector('button').onclick = (function(){
+		$('p$popupBox$').hidden = true;
+		$('p$popupBox$').innerHTML = null;
+	});
+}
+
 function resizeTerminal () {
 	const divider = (Device.adb ? 2 : 3);
 	terminalOutput.style.height = `${window.innerHeight - ((48 + 8) * divider)}px`;
@@ -49,7 +37,7 @@ function resizeTerminal () {
 window.addEventListener('resize', resizeTerminal);
 resizeTerminal();
 
-const UsbManager = AdbDaemonWebUsb.AdbDaemonWebUsbDeviceManager.BROWSER;
+const UsbManager = AdbDaemonWebUsbDeviceManager.BROWSER;
 if (!UsbManager) {
 	$('div$browserWarning$').innerHTML = `<p>
 		<a target="_blank" href="https://developer.mozilla.org/en-US/docs/Web/API/USB#browser_compatibility">WebUSB is not supported</a> in this browser, so the app cannot work.
@@ -70,7 +58,7 @@ if (!UsbManager) {
 	return; // kill the app
 }
 
-new AdbDaemonWebUsb.AdbDaemonWebUsbDeviceWatcher((async function(connectedDevice){
+new AdbDaemonWebUsbDeviceWatcher((async function(connectedDevice){
 	if (!connectedDevice) {
 		await disconnectDevice();
 	}
@@ -82,8 +70,8 @@ async function connectAuthorizeDevice () {
 		Device.device = await getDevice();
 		try {
 			Device.connection = await Device.device.connect();
-			Device.transport = await Adb.AdbDaemonTransport.authenticate({ connection: Device.connection, credentialStore: CredentialStore });
-			Device.adb = new Adb.Adb(Device.transport);
+			Device.transport = await AdbDaemonTransport.authenticate({ connection: Device.connection, credentialStore: CredentialStore });
+			Device.adb = new Adb(Device.transport);
 		} catch (err) {
 			$('p$deviceStatus$').textContent = 'An error occurred while trying to establish a device connection. Please ensure that no other processes or browser tabs on this system are currently using the device, then retry.';
 		}
@@ -144,7 +132,6 @@ async function refreshDeviceInfo () {
 		//$('$deviceInfo$').hidden = false;
 		if (Device.adb) {
 			$('$deviceStatus$').innerHTML = null;
-			// $('$devicePropDump$').innerHTML = null;
 			$('$deviceCpuAbis$').innerHTML = `<b>CPU ABIs</b>: ${await Device.adb.getProp('ro.system.product.cpu.abilist')}`;
 			$('$androidVersion$').innerHTML = `<b>Android version</b>: ${await Device.adb.getProp('ro.build.version.release')}`;
 			$('$androidApi$').innerHTML = `<b>SDK API version</b>: ${await Device.adb.getProp('ro.build.version.sdk')}`;
@@ -156,11 +143,6 @@ async function refreshDeviceInfo () {
 			terminalOutput.disabled = false;
 			terminalOutput.textContent += (terminalOutput.textContent ? '\n> ' : '> ');
 			$('button$clearTerminal$').disabled = false;
-			/* for (const line of (await Device.adb.getProp()).split('\n')) {
-				const elem = document.createElement('li');
-				elem.textContent = line;
-				$('$devicePropDump$').appendChild(elem);
-			} */
 		} else {
 			onDevice = false;
 		}
@@ -175,8 +157,13 @@ async function refreshDeviceInfo () {
 function toggleDeviceElems (enabled) {
 	$('$deviceInfo$').hidden = !enabled;
 	$('button$apkInstall$').disabled = !enabled;
+	$('button$packagesUninstall$').disabled = true;
+	$('button$packagesInvertSelect$').disabled = !enabled;
 	$('input$terminalInput$').disabled = !enabled;
 	resizeTerminal();
+	if (!enabled) {
+		$('ul$packageList$').innerHTML = null;
+	}
 }
 
 async function refreshDeviceSection () {
@@ -228,25 +215,86 @@ $('button$wrapTerminal$').onclick = (function(){
 	terminalOutput.scrollTop = terminalOutput.scrollHeight;
 });
 
+$('button$apkInstall$').onclick = (async function(){
+	// TODO allow installing via drag&drop on packages section
+	const fileInput = this.querySelector('input');
+	fileInput.onchange = (async function(event){
+		const count = event.target.files.length;
+		if (!count > 0) {
+			return;
+		}
+		popupBox(`Installing ${count} package(s)...`);
+		const pm = new PackageManager(Device.adb);
+		for (const index in Object.keys(event.target.files)) {
+			const file = event.target.files[index];
+			try {
+				await pm.installStream(file.size, (new WrapReadableStream(file.stream())).pipeThrough(new WrapConsumableStream()));
+				popupBox(`Successfully installed package ${Number(index) + 1} of ${count}.`);
+				refreshPackagesList();
+			} catch (err) {
+				popupBox('Operation has failed:' + err);
+				break;
+			}
+		}
+	});
+	fileInput.click();
+});
+
+$('button$packagesUninstall$').onclick = (async function(event){
+	const checkedPackagesElems = $('ul$packageList$').querySelectorAll('input[type="checkbox"]:checked');
+	const count = checkedPackagesElems.length;
+	if (!confirm(`Confirm uninstalling ${count} packages? (Currently only works on user packages, will fail on system ones.)`)) {
+		return;
+	}
+	$('button$packagesUninstall$').disabled = true;
+	const pm = new PackageManager(Device.adb);
+	for (const index in Object.keys(checkedPackagesElems)) {
+		try {
+			const packageElem = checkedPackagesElems[index].parentElement;
+			const packageName = packageElem.textContent.trim();
+			await pm.uninstall(packageName);
+			popupBox(`Successfully uninstalled package ${Number(index) + 1} of ${count}.`);
+			refreshPackagesList();
+		} catch(err) {
+			popupBox('Operation has failed:' + err);
+			break;
+		}
+	}
+	$('button$packagesUninstall$').disabled = false;
+	refreshPackagesList();
+})
+
+$('button$packagesInvertSelect$').onclick = (function(){
+	Array.from($('ul$packageList$').querySelectorAll('input[type="checkbox"]')).forEach(function(packageElem){
+		packageElem.checked = !packageElem.checked;
+	});
+});
+
 async function refreshPackagesList () {
 	$('ul$packageList$').innerHTML = null;
+	$('button$packagesUninstall$').disabled = true;
 	const pm = new PackageManager(Device.adb);
 	const list = await pm.listPackages();
+	const checkedList = {};
+	let index = 0;
 	let result = await list.next();
 	while (!result.done) {
 		var packageElem = document.createElement('li');
-		packageElem.innerHTML = `${result.value.packageName}<!-- <input type="checkbox" class="floatRight"/>-->`;
-		/* packageElem.querySelector('input').onclick = (function(){
-			// TODO: hide or show action buttons that do actions on selected elements if there is none or at least one
-		}); */
+		packageElem.index = index;
+		packageElem.innerHTML = `${result.value.packageName} <input type="checkbox" class="floatRight"/>`;
+		packageElem.querySelector('input').onchange = (function(){
+			checkedList[this.parentElement.index] = this.checked;
+			$('button$packagesUninstall$').disabled = !Object.values(checkedList).includes(true);
+		});
 		$('ul$packageList$').appendChild(packageElem);
+		index++;
 		result = await list.next();
 	}
 }
 
 window.addEventListener('hashchange', (async function(){
 	const sectionHash = location.hash.slice(2).split('/')[0];
-	if (Device.adb && sectionHash === 'packages' /* && !$('ul$packageList$').innerHTML */) {
+	if (Device.adb && sectionHash === 'packages') {
 		refreshPackagesList();
 	}
 }));
diff --git a/source/SpiderADB/holo-web/holo-extra-octt.css b/source/SpiderADB/holo-web/holo-extra-octt.css
index c850159..7a99e49 100644
--- a/source/SpiderADB/holo-web/holo-extra-octt.css
+++ b/source/SpiderADB/holo-web/holo-extra-octt.css
@@ -27,7 +27,7 @@ a[data-action-section] {
 	/* width: 60%; */
 	height: 100vh;
 	z-index: 1;
-	background: rgba(0, 0, 0, 0.6);
+	background: rgba(0, 0, 0, 0.65);
 }
 
 .holo-sidebar[data-open="open"], .holo-sideBar[data-open="open"] {
@@ -37,10 +37,10 @@ a[data-action-section] {
 .holo-sidebar .holo-list, .holo-sideBar .holo-list {
 	width: 60%;
 	height: 100vh;
-	background: rgba(0, 0, 0, 0.9);
+	background: rgba(0, 0, 0, 0.80);
 }
 
-.actionBar .holo-title.holo-menu, .holo-actionBar .holo-title.holo-menu {
+.actionbar .holo-title.holo-menu, .holo-actionbar .holo-title.holo-menu, .actionBar .holo-title.holo-menu, .holo-actionBar .holo-title.holo-menu {
 	background-position: 0 16px;
 	background-repeat: no-repeat;
 	background-image: url(./holo-menu.png);
@@ -52,12 +52,42 @@ a[data-action-section] {
 	box-sizing: content-box;
 }
 
+.holo-sidebar > .holo-list, .holo-sideBar > .holo-list {
+	overflow-y: auto;
+}
+
+.holo-actionbar .holo-list, .holo-actionBar .holo-list {
+	position: absolute;
+	top: -2px;
+	right: 0;
+}
+
+.holo-actionbar .holo-list.collapsible, .holo-actionBar .holo-list.collapsible {
+	top: 47px;
+	background: rgba(16, 16, 16, 0.95);
+	display: none;
+}
+
+.holo-actionbar .holo-list > div, .holo-actionBar .holo-list > div,
+.holo-actionbar .holo-list:not(.collapsible) li, .holo-actionBar .holo-list:not(.collapsible) li {
+	display: inline-block;
+}
+
+.holo-actionbar .holo-list li > button, .holo-actionBar ul.holo-list li > button {
+	font-size: revert;
+}
+
+.holo-actionbar .holo-list:not(.collapsible) *[data-collapsed="true"], .holo-actionBar .holo-list:not(.collapsible) *[data-collapsed="true"],
+.holo-actionbar .holo-list.collapsible *[data-collapsed="false"], .holo-actionBar .holo-list.collapsible *[data-collapsed="false"] {
+	display: none !important;
+}
+
 /* https://github.com/ZMYaro/holo-web/issues/1#issuecomment-12778881 */
 input[type="text"] {
 	background: transparent;
 	color: white;
 	border-width: 0 0 1px;
-	border-color: #7F7F7F;
+	border-color: /* #4AB3E4; */ #7F7F7F;
 	border-style: solid;
 	line-height: 36px;
 	padding: 0px 4px;
@@ -72,7 +102,7 @@ textarea {
 	background: transparent;
 	color: white;
 	border-width: 0 0 1px;
-	border-color: #7F7F7F;
+	border-color: /* #4AB3E4; */ #7F7F7F;
 	border-style: solid;
 	padding: 4px 4px;
 	box-sizing: border-box; -moz-box-sizing: border-box; -webkit-box-sizing: border-box;
diff --git a/source/SpiderADB/holo-web/holo-extra-octt.js b/source/SpiderADB/holo-web/holo-extra-octt.js
index 5edd016..4785695 100644
--- a/source/SpiderADB/holo-web/holo-extra-octt.js
+++ b/source/SpiderADB/holo-web/holo-extra-octt.js
@@ -1,7 +1,39 @@
 window.addEventListener('load', (function() {
 
+//function getElemPrototype (elem) { return elem.outerHTML.split('>') }
+
+/* https://stackoverflow.com/a/47932848 */
+//function camelToDash(str){ return str.replace(/([A-Z])/g, function($1){return "-"+$1.toLowerCase();}) }
+
+/* function elemToQuery (elem) {
+	var query = elem.tagName;
+	if (elem.id) {
+		query += `[id="${elem.id}"]`;
+	}
+	if (elem.className) {
+		query += `[class="${elem.className}"]`;
+	}
+	for (var key in elem.dataset) {
+		query += `[data-${camelToDash(key)}="${elem.dataset[key]}"]`;
+	}
+	return query;
+} */
+
 var initialSectionName = $('[data-section][data-open]').dataset.section;
 
+$(':: .holo-actionbar > .holo-list, .holo-actionBar > .holo-list').forEach(function(actionListElem){
+	var actionListElemNew = actionListElem.cloneNode(true);
+	actionListElemNew.classList.add('collapsible');
+	actionListElemNew.querySelector('[data-collapser]').remove();
+	arrayFrom(actionListElemNew.querySelectorAll('.holo-list li')).forEach(function(itemElem){
+		itemElem.remove();
+	});
+	actionListElem.insertAdjacentElement('afterend', actionListElemNew);
+	actionListElem.querySelector('button[data-collapser], [data-collapser] > button').onclick = (function(){
+		actionListElemNew.style.display = (actionListElemNew.style.display ? null : 'revert');
+	});
+});
+
 $('::[data-action-sidebar]').forEach(function(actionSidebarElem){
 	var sidebarElem = $('[data-sidebar="' + actionSidebarElem.dataset.actionSidebar + '"]');
 	function toggleSidebar () {
@@ -41,6 +73,7 @@ function refreshDisplaySections (sectionTargetName) {
 			displaySectionsElem.style.display = 'none';
 		}
 	});
+	reorderActionBar();
 }
 refreshDisplaySections();
 
@@ -51,4 +84,52 @@ function hashChange () {
 window.addEventListener('hashchange', hashChange);
 hashChange();
 
+function reorderActionBar () {
+	$(':: .holo-actionbar, .holo-actionBar').forEach(function(actionBarElem){
+		var childrenWidth = 0;
+		var collapsedChildren = 0;
+		childrenWidth += actionBarElem.querySelector('button.holo-title').clientWidth;
+		arrayFrom(actionBarElem.querySelectorAll('.holo-list.collapsible li')).forEach(function(itemElem){
+			var destParentElem = actionBarElem.querySelector('.holo-list:not(.collapsible)');
+			//if (!destParentElem.className.includes('holo-list')) {
+			//if (getElemPrototype(itemElem.parentElement) !== getElemPrototype(destParentElem)) {
+			//	destParentElem = actionBarElem.querySelector(`.holo-list:not(.collapsible) > ${elemToQuery(itemElem.parentElement)}`);
+			//}
+			destParentElem.insertBefore(itemElem, destParentElem.lastElementChild);
+		});
+		arrayFrom(actionBarElem.querySelectorAll('.holo-list:not(.collapsible) li')).forEach(function(itemElem){
+			itemElem.dataset.collapsed = false;
+			childrenWidth += itemElem.clientWidth;
+		});
+		//arrayFrom(actionBarElem.querySelectorAll('.holo-list.collapsible li')).forEach(function(itemElem){
+		//	itemElem.dataset.collapsed = false;
+		//});
+		if (childrenWidth <= actionBarElem.clientWidth) {
+			actionBarElem.querySelector('[data-collapser]').style.display = 'none';
+		}
+		while (childrenWidth > actionBarElem.clientWidth) {
+			var itemElem = arrayFrom(actionBarElem.querySelectorAll('.holo-list:not(.collapsible) li:not([data-collapsed="true"]):not([data-collapser])')).slice(-1)[0];
+			if (!itemElem) {
+				return;
+			}
+			collapsedChildren++;
+			childrenWidth -= itemElem.clientWidth;
+			itemElem.dataset.collapsed = true;
+			var destParentElem = actionBarElem.querySelector('.holo-list.collapsible');
+			//if (!destParentElem.className.includes('holo-list')) {
+			//	destParentElem = actionBarElem.querySelector(`.holo-list.collapsible > ${elemToQuery(itemElem.parentElement)}`);
+			//}
+			destParentElem.insertBefore(itemElem, destParentElem.firstElementChild);
+			actionBarElem.querySelector('[data-collapser]').style.display = null;
+		}
+		//if (collapsedChildren > 0) {
+		//	arrayFrom(actionBarElem.querySelectorAll('.holo-list.collapsible li:not([data-collapsed="true"]):not([data-collapser])')).slice(-collapsedChildren).forEach(function(itemElem){
+		//		itemElem.dataset.collapsed = true;
+		//	});
+		//}
+	});
+}
+window.addEventListener('resize', reorderActionBar);
+reorderActionBar();
+
 }));
diff --git a/source/SpiderADB/index.html b/source/SpiderADB/index.html
index 8242663..8be50dd 100644
--- a/source/SpiderADB/index.html
+++ b/source/SpiderADB/index.html
@@ -3,7 +3,9 @@
 <head>
 	<meta charset="UTF-8"/>
 	<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-	<title>🕷️ SpiderADB</title>
+	<meta property="og:title" content="🕷️ SpiderADB"/>
+	<meta OctoSpaccHubSdk="Url" content="https://hub.octt.eu.org/SpiderADB/"/>
+	<meta OctoSpaccHubSdk="WebManifestExtra" content="'display':'standalone',"/>
 	<link rel="stylesheet" href="./holo-web/holo-base-elements.css"/>
 	<link rel="stylesheet" href="./holo-web/holo-base-widgets.css"/>
 	<link rel="stylesheet" href="./holo-web/holo-ics-dark-elements.css"/>
@@ -15,10 +17,11 @@
 	<script src="../../shared/OctoHub-Global.js"></script>
 	<style>
 		.floatRight { float: right; }
-		body { overflow-x: hidden; padding-bottom: 0; }
+		body { overflow-x: hidden; padding-bottom: 0; overflow-wrap: break-word; }
 		ul.holo-list li input[type="checkbox"].floatRight { margin-top: 0; }
-		section.holo-sideBar > ul.holo-list { overflow-y: auto; }
-		[name="terminalInput"], [name="terminalOutput"] {
+		p[name="popupBox"] { box-sizing: border-box; position: fixed; top: 25%; left: 0; width: 100%; min-height: 20%; padding: 1em; background: rgba(0, 0, 0, 0.95); }
+		p[name="popupBox"] > button { float: right; }
+		input[name="terminalInput"], textarea[name="terminalOutput"] {
 			width: 100% !important;
 			margin-left: 0 !important;
 			margin-right: 0 !important;
@@ -31,19 +34,44 @@
 		<button class="holo-title holo-menu" data-action-sidebar="sidebar">
 			🕷️ SpiderADB <small>(WIP)</small>
 		</button>
-		<!-- <button class="floatRight" data-display-sections="terminal">
-			Tabs
-		</button> -->
-		<button class="floatRight" data-display-sections="terminal" name="clearTerminal" disabled="true">
-			Clear
-		</button>
-		<button class="floatRight" data-display-sections="terminal" name="wrapTerminal">
-			Wrap
-		</button>
-		<button class="floatRight" data-display-sections="packages" name="apkInstall">
-			<input type="file" hidden="true" multiple="true" accept=".apk, application/vnd.android.package-archive"/>
-			Install APK(s)
-		</button>
+		<ul class="holo-list">
+			<!-- <div data-display-sections="terminal">
+				<li><button name="clearTerminal" disabled="true">
+					Clear
+				</button></li>
+				<li><button name="wrapTerminal">
+					Wrap
+				</button></li>
+			</div>
+				<div data-display-sections="packages">
+				<li><button name="packagesInvertSelect" disabled="true">
+					Invert selection
+				</button></li>
+				<li><button name="apkInstall" disabled="true">
+					<input type="file" hidden="true" multiple="true" accept=".apk, application/vnd.android.package-archive"/>
+					Install APK(s)
+				</button></li>
+			</div> -->
+			<li data-display-sections="terminal"><button name="wrapTerminal">
+				Wrap
+			</button></li>
+			<li data-display-sections="terminal"><button name="clearTerminal" disabled="true">
+				Clear
+			</button></li>
+			<li data-display-sections="packages"><button name="packagesInvertSelect" disabled="true">
+				Invert selection
+			</button></li>
+			<li data-display-sections="packages"><button name="packagesUninstall" disabled="true">
+				Uninstall selected
+			</button></li>
+			<li data-display-sections="packages"><button name="apkInstall" disabled="true">
+				<input type="file" hidden="true" multiple="true" accept=".apk, application/vnd.android.package-archive"/>
+				Install APK(s)
+			</button></li>
+			<li data-collapser><button>
+				<b>···</b>
+			</button></li>
+		</ul>
 	</header>
 	<section class="holo-sideBar" data-sidebar="sidebar">
 		<ul class="holo-list">
@@ -68,24 +96,47 @@
 		</ul>
 	</section>
 	<section class="holo-body">
-		<p name="connectReminder" data-display-sections="terminal packages">
+		<p name="javascriptWarning" style="font-size: xx-large; font-weight: bold;">You need to enable JavaScript to run this app!</p>
+		<p name="connectReminder" data-display-sections="terminal packages" hidden="true">
 			You must <a data-action-section="devices">connect and authorize a device</a> first.
 		</p>
-		<section class="holo-section" data-section="about">
-			<p>SpiderADB is an user-friendly webapp for connecting to devices via the Android Debug Bridge, straight from a browser.</p>
-			<!-- TODO features -->
+		<p name="popupBox" hidden="true"></p>
+		<section class="holo-section" data-section="about" style="display: block !important;">
+			<p>
+				<b>SpiderADB</b> is an user-friendly webapp for connecting to devices via the Android Debug Bridge, straight from a browser.
+				The aim of this is to be kind of a swiss army knife that can be used from any platform, with minimal hassle,
+				to do a number of advanced administration and debugging task on Android devices. These are the current features:
+			</p><ul>
+				<li><b>Devices</b>: Allows connecting new devices, shows a list of the paired ones, and lists basic useful information about various parts of the system.</li>
+				<li><b>Terminal</b>: Provides a basic terminal shell for inputting commands and reading their output. (Currently doesn't support any teletype features, so only basic commands can be run properly.)</li>
+				<li><b>Packages</b>: Displays a list of the currently installed packages, allowing for multiple to be uninstalled, and also allows uploading APK files for installation.</li>
+			</ul>
 			<p>Here are some additional tips and tricks you might find useful to make the most out of this app:</p><ul>
 				<li><a target="_blank" href="https://dev.to/larsonzhong/most-complete-adb-commands-4pcg">Most complete ADB command manual</a></li>
 			</ul>
-			<h3>Open Source and Credits</h3>
-			<p>
-				This app is open-source and made with mostly-vanilla web technologies. You can find the full source code on my Git repo: <a href="https://gitlab.com/octospacc/octospacc.gitlab.io/-/tree/master/source/SpiderADB/">https://gitlab.com/octospacc/octospacc.gitlab.io/-/tree/master/source/SpiderADB/</a>.
-			<p>Also, this app wouldn't have been possible without these third-party components, of which the license is specified in brackets:</p><ul>
+			<h3>Open-Source and Licensing</h3><p>
+				This app is open-source and made with mostly-vanilla web technologies.
+				You can find the full source code on my Git repo:
+				<a href="https://gitlab.com/octospacc/octospacc.gitlab.io/-/tree/master/source/SpiderADB/">https://gitlab.com/octospacc/octospacc.gitlab.io/-/tree/master/source/SpiderADB/</a>.
+			</p><p>Copyright (C) 2024, OctoSpacc
+				<br/>This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+				<br/>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
+				<br/>You should have received a copy of the GNU Affero General Public License along with this program. If not, see <a target="_blank" href="https://www.gnu.org/licenses/">https://www.gnu.org/licenses/</a>.
+			</p>
+			<h3>Third-Parties and Credits</h3><p>
+				This app wouldn't have been possible without these third-party components, of which the license is specified in brackets:
+			</p><ul>
 				<li><a target="_blank" href="https://github.com/yume-chan/ya-webadb">Tango</a> [MIT]: ADB port for the web</li>
 				<li><a target="_blank" href="https://github.com/tango-adb/old-demo">Tango Demo (Old)</a> [MIT]: the previous official Tango demo webapp, helpful for writing my app since the Tango documentation is pretty lacking</li>
 				<li><a target="_blank" href="https://github.com/zmyaro/holo-web">Holo Web</a> [MIT]: stylesheets for recreating the Android Holo theme on the web</li>
 			</ul>
 			<h3>Changelog</h3>
+			<h4>2024-04-20</h4><ul>
+				<li>Add feature descriptions to About section, and licensing info.</li>
+				<li>Update UI engine, adding auto-collapsible option menu.</li>
+				<li>Add selection boxes in Packages menu, and allow uninstalling (user) packages.</li>
+				<li>Fix design for no-JS user agents: add warning and make the About page the visible content.</li>
+			</ul>
 			<h4>2024-04-18</h4><ul>
 				<li>Improve Terminal logic, which now also shows stdout, scaling, and add a Clear feature.</li>
 				<li>Introduce Packages menu, listing all installed packages' names, and allow installing (multiple) APKs files.</li>
@@ -121,10 +172,6 @@
 						<li name="deviceCpuAbis"></li>
 					</div>
 				</ul>
-				<!-- <details>
-					<summary><code>getprop</code> Info dump</summary>
-					<ul name="devicePropDump"></ul>
-				</details> -->
 			</section>
 		</section>
 		<section class="holo-section" data-section="terminal">
@@ -132,11 +179,8 @@
 			<input name="terminalInput" type="text" disabled="true" placeholder="&gt; Input any command..."/>
 		</section>
 		<section class="holo-section" data-section="packages">
-			<!-- TODO buttons -->
-			<ul class="holo-list" name="packageList"></ul><!--<li>Test <input type="checkbox" class="floatRight"/></li><!--<label><li>Test <input type="checkbox"/></li></label>-->
-			<section class="holo-subsection" name="packageInfo">
-				
-			</section>
+			<ul class="holo-list" name="packageList"></ul>
+			<!-- <section class="holo-subsection" name="packageInfo"></section> -->
 		</section>
 	</section>
 	<script src="./bundle.js"></script>
diff --git a/source/WuppiMini/index.js b/source/WuppiMini/index.js
index 2c7d05b..8b9530f 100755
--- a/source/WuppiMini/index.js
+++ b/source/WuppiMini/index.js
@@ -35,7 +35,9 @@ const appPager = (content, title) => `${title ? `<h2>${title}</h2>` : ''}${conte
 const newHtmlPage = (content, title) => `<!DOCTYPE html><html><head>
 	<meta charset="utf-8"/>
 	<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-	<title>${title ? `${title} — ` : ''}${appName}</title>
+	<meta property="og:title" content="${title ? `${title} — ` : ''}${appName}"/>
+	<meta OctoSpaccHubSdk="Url" content="https://hub.octt.eu.org/WuppiMini/"/>
+	<meta OctoSpaccHubSdk="WebManifestExtra" content="'display':'standalone',"/>
 	<script src="../../shared/OctoHub-Global.js"></script>
 	<style>
 * {
diff --git a/static/MatrixStickerHelper/index.html b/static/MatrixStickerHelper/index.html
index ca5e35d..62a3792 100644
--- a/static/MatrixStickerHelper/index.html
+++ b/static/MatrixStickerHelper/index.html
@@ -1,7 +1,9 @@
 <!DOCTYPE html>
 <meta charset="utf-8"/>
 <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-<title>🃏️ [Matrix] Sticker Helper</title>
+<meta property="og:title" content="🃏️ [Matrix] Sticker Helper"/>
+<meta OctoSpaccHubSdk="Url" content="https://hub.octt.eu.org/MatrixStickerHelper/"/>
+<meta OctoSpaccHubSdk="WebManifestExtra" content="'display':'standalone',"/>
 
 <script src="../../shared/OctoHub-Global.js"></script>
 <script src="../../../SpaccDotWeb/SpaccDotWeb.Alt.js" module="SpaccDotWeb"></script><!-- offline -->