diff --git a/src/app.css b/src/app.css
index ead23e7d..c486b35d 100644
--- a/src/app.css
+++ b/src/app.css
@@ -39,13 +39,12 @@
 		padding-bottom: 1em;
 	}
 
-	.markdown ul{
+	.markdown ul {
 		@apply py-4;
 	}
-	.markdown li{
+	.markdown li {
 		list-style-type: disc;
 		@apply pl-2 ml-6;
-
 	}
 
 	.external::after {
diff --git a/src/lib/components/CalendarList.svelte b/src/lib/components/CalendarList.svelte
index 0dad88e5..83d60374 100644
--- a/src/lib/components/CalendarList.svelte
+++ b/src/lib/components/CalendarList.svelte
@@ -3,7 +3,7 @@
 	import EventTypeBadge from '$lib/components/EventTypeBadge.svelte';
 	import { config } from '$lib/pbw';
 	import { format } from 'date-fns';
-	import { formatInTimeZone } from 'date-fns-tz'
+	import { formatInTimeZone } from 'date-fns-tz';
 
 	export let segments;
 	export let date;
@@ -13,20 +13,21 @@
 	export let event = null;
 
 	for (let i = 0; i < segments.length; i++) {
-		const sg = segments[i]
+		const sg = segments[i];
 		if (sg.remote) {
-			const event = bundle.events.find(e => e.id === sg.remote)
+			const event = bundle.events.find((e) => e.id === sg.remote);
 			if (!event || !event.segments) {
-				continue
+				continue;
 			}
-			const remoteSegments = event.segments.map(rs => Object.assign(rs, {
-				event,
-				remote: true
-			}))
-			segments.splice(i, remoteSegments.length, ...remoteSegments)
+			const remoteSegments = event.segments.map((rs) =>
+				Object.assign(rs, {
+					event,
+					remote: true
+				})
+			);
+			segments.splice(i, remoteSegments.length, ...remoteSegments);
 		}
 	}
-
 </script>
 
 <div class="text-2xl">
@@ -58,12 +59,16 @@
 					<div>
 						{#if !event || segment.remote}
 							{#if (segment.event || event).hidden}
-								{(segment.event || event)[(segment.event || event).shortname ? 'shortname' : 'name']}*
+								{(segment.event || event)[
+									(segment.event || event).shortname ? 'shortname' : 'name'
+								]}*
 							{:else}
 								<a
 									href="/{entry}/{col}/{(segment.event || event).id}"
 									class="text-pbw-red hover:underline"
-									>{(segment.event || event)[(segment.event || event).shortname ? 'shortname' : 'name']}</a
+									>{(segment.event || event)[
+										(segment.event || event).shortname ? 'shortname' : 'name'
+									]}</a
 								>
 							{/if}
 						{:else}
diff --git a/src/lib/components/CollectionList.svelte b/src/lib/components/CollectionList.svelte
index 6589a9af..426ee80b 100644
--- a/src/lib/components/CollectionList.svelte
+++ b/src/lib/components/CollectionList.svelte
@@ -13,6 +13,7 @@
 	export let offer = false;
 	export let bundle = null;
 	export let currentItem = null;
+	export let thumb = '300';
 
 	function findObject(it) {
 		if (!bundle) {
@@ -39,7 +40,7 @@
 	<div
 		class="{size === 'small' ? 'p-0.5 lg:p-1' : 'p-1 lg:p-1.5'} {!item.hidden
 			? 'hover:bg-pbw-yellow/20 dark:hover:bg-pbw-white/10'
-			: ''} {(size === 'small' ? 'rounded-lg' : 'rounded-2xl')}"
+			: ''} {size === 'small' ? 'rounded-lg' : 'rounded-2xl'}"
 	>
 		<div class="w-full relative">
 			{#if col === 'benefit'}
@@ -53,10 +54,11 @@
 			<a href={_url(col, item)}>
 				<ItemLogo
 					{item}
+					{thumb}
 					width="w-full"
 					{aspect}
 					{img}
-					rounded={circle ? 'rounded-full' : (size === 'small' ? 'rounded-lg' : 'rounded-2xl')}
+					rounded={circle ? 'rounded-full' : size === 'small' ? 'rounded-lg' : 'rounded-2xl'}
 				/>
 			</a>
 		</div>
@@ -113,9 +115,10 @@
 				{#if col === 'speaker'}<a href="/{entry}/for-speakers" class="underline hover:no-underline"
 						>Participate as a speaker!</a
 					>{/if}
-				{#if col === 'place'}<a href="https://prgblockweek.com/submit-venue" class="underline hover:no-underline"
-					>Offer your own venue!</a
-				>{/if}
+				{#if col === 'place'}<a
+						href="https://prgblockweek.com/submit-venue"
+						class="underline hover:no-underline">Offer your own venue!</a
+					>{/if}
 			</div>
 		</div>
 	</div>
diff --git a/src/lib/components/ItemLogo.svelte b/src/lib/components/ItemLogo.svelte
index 7fc3a5ab..d90729c5 100644
--- a/src/lib/components/ItemLogo.svelte
+++ b/src/lib/components/ItemLogo.svelte
@@ -6,13 +6,18 @@
 	export let width = 'w-10';
 	export let aspect = 'aspect-square';
 	export let rounded = 'rounded';
+	export let thumb = '300';
+
+	if (width.match(/^w-48/)) {
+		thumb = '500';
+	}
 
 	$: blockie = !item[img] && item.hash ? makeBlockie('0x' + item.hash.substr(0, 40)) : null;
 </script>
 
 {#if item[img]}
 	<img
-		src={item[img]}
+		src={item[img].replace(/\.([^.]+)$/, `_${thumb}px.webp`)}
 		class="{width} {rounded} {aspect} object-cover dark:bg-white drop-shadow-xl z-10"
 		alt={item.name}
 	/>
diff --git a/src/lib/pbw.js b/src/lib/pbw.js
index b5d87ec7..bd8848d2 100644
--- a/src/lib/pbw.js
+++ b/src/lib/pbw.js
@@ -1,5 +1,5 @@
 export const config = {
-	tz: "Europe/Prague",
+	tz: 'Europe/Prague',
 	collections: {
 		places: {
 			title: 'Places',
diff --git a/src/lib/utils.js b/src/lib/utils.js
index f340037d..a967f203 100644
--- a/src/lib/utils.js
+++ b/src/lib/utils.js
@@ -36,16 +36,16 @@ export function getFlagEmoji(str, mapper = true) {
 	return String.fromCodePoint(...codePoints);
 }
 
-export function processItemsList (arr) {
-	const out = []
-	const ids = []
+export function processItemsList(arr) {
+	const out = [];
+	const ids = [];
 	for (const sp of arr) {
 		// filter out duplicates
 		if (ids.includes(sp.id)) {
-			continue
+			continue;
 		}
-		out.push(sp)
-		ids.push(sp.id)
+		out.push(sp);
+		ids.push(sp.id);
 	}
-	return out
+	return out;
 }
diff --git a/src/routes/[entry]/+page.svelte b/src/routes/[entry]/+page.svelte
index db26003d..f4e45fb4 100644
--- a/src/routes/[entry]/+page.svelte
+++ b/src/routes/[entry]/+page.svelte
@@ -15,7 +15,7 @@
 		return !e.types.find((t) => ['conference', 'hackathon'].includes(t)) && !e.hidden;
 	});
 
-	const speakers = processItemsList(data.bundle.speakers)
+	const speakers = processItemsList(data.bundle.speakers);
 
 	const collections = [
 		{ title: 'Days', value: 10, col: 'schedule' },
@@ -27,7 +27,6 @@
 		//{ title: "Unions", col: "unions" },
 		{ title: 'Benefits', col: 'benefits' }
 	];
-
 </script>
 
 <svelte:head>
@@ -58,7 +57,7 @@
 		<div
 			class="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 xl:grid-cols-6 my-6 text-center text-2xl"
 		>
-			<CollectionList arr={conferences} img="logo" col="event" {entry} offer={true} />
+			<CollectionList arr={conferences} thumb="500" img="logo" col="event" {entry} offer={true} />
 		</div>
 
 		<h2 class="text-2xl uppercase font-bold pbw-text-color-secondary">
@@ -67,7 +66,7 @@
 		<div
 			class="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 xl:grid-cols-6 my-6 text-center text-2xl"
 		>
-			<CollectionList arr={otherEvents} img="logo" col="event" {entry} />
+			<CollectionList arr={otherEvents} thumb="500" img="logo" col="event" {entry} />
 		</div>
 		<h2 class="text-2xl uppercase font-bold mt-10 pbw-text-color-secondary">
 			<a href="/{entry}/speakers">Speakers</a> ({speakers.length})
@@ -77,7 +76,11 @@
 			class="grid grid-cols-3 sm:grid-cols-3 md:grid-cols-6 xl:grid-cols-8 my-6 text-center text-xl"
 		>
 			<CollectionList
-				arr={processItemsList(speakers.filter((s) => !['cz', 'sk'].includes(s.country)).sort((x, y) => (x.name > y.name ? 1 : -1)))}
+				arr={processItemsList(
+					speakers
+						.filter((s) => !['cz', 'sk'].includes(s.country))
+						.sort((x, y) => (x.name > y.name ? 1 : -1))
+				)}
 				{entry}
 				offer="true"
 				circle="true"
@@ -90,7 +93,11 @@
 			class="grid grid-cols-3 sm:grid-cols-3 md:grid-cols-6 xl:grid-cols-8 my-6 text-center text-xl"
 		>
 			<CollectionList
-				arr={processItemsList(speakers.filter((s) => ['cz', 'sk'].includes(s.country)).sort((x, y) => (x.name > y.name ? 1 : -1)))}
+				arr={processItemsList(
+					speakers
+						.filter((s) => ['cz', 'sk'].includes(s.country))
+						.sort((x, y) => (x.name > y.name ? 1 : -1))
+				)}
 				{entry}
 				offer="true"
 				circle="true"
@@ -102,7 +109,14 @@
 		<div
 			class="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 xl:grid-cols-6 my-6 text-center text-2xl"
 		>
-			<CollectionList arr={data.bundle.places} col="place" img="photo" {entry} offer={true} />
+			<CollectionList
+				arr={data.bundle.places}
+				thumb="500"
+				col="place"
+				img="photo"
+				{entry}
+				offer={true}
+			/>
 		</div>
 		{#if data.bundle.benefits}
 			<h2 class="text-2xl uppercase font-bold pbw-text-color-secondary">
diff --git a/src/routes/[entry]/[type]/+page.svelte b/src/routes/[entry]/[type]/+page.svelte
index 6fa11105..09a323c1 100644
--- a/src/routes/[entry]/[type]/+page.svelte
+++ b/src/routes/[entry]/[type]/+page.svelte
@@ -23,12 +23,11 @@
 	let entry = $page.params.entry;
 	$: type = $page.params.type;
 	$: tc = config.collections[type];
-	$: items = type === 'speakers' ? processItemsList(data.bundle[type]) : data.bundle[type]
-
+	$: items = type === 'speakers' ? processItemsList(data.bundle[type]) : data.bundle[type];
 
 	function processItems(_items, query = {}) {
 		if (!_items) return [];
-		_items = [..._items]
+		_items = [..._items];
 		if (type === 'events') {
 			_items = _items.sort((x, y) => (x.date > y.date ? 1 : -1));
 		}
@@ -45,10 +44,10 @@
 			});
 		}
 		if (['speakers', 'benefits', 'media-partner'].includes(type)) {
-			_items = _items.sort((x, y) => (x.name.toLowerCase() > y.name.toLowerCase() ? 1 : -1))
+			_items = _items.sort((x, y) => (x.name.toLowerCase() > y.name.toLowerCase() ? 1 : -1));
 		}
 		if (type === 'places') {
-			_items = _items.sort((x, y) => (x.capacity > y.capacity ? -1 : 1))
+			_items = _items.sort((x, y) => (x.capacity > y.capacity ? -1 : 1));
 		}
 
 		return _items;
diff --git a/src/routes/[entry]/[type]/[slug]/+page.svelte b/src/routes/[entry]/[type]/[slug]/+page.svelte
index d1eca56b..4b4907b2 100644
--- a/src/routes/[entry]/[type]/[slug]/+page.svelte
+++ b/src/routes/[entry]/[type]/[slug]/+page.svelte
@@ -12,7 +12,7 @@
 	import { formatItemDate, bareDomain, getFlagEmoji } from '$lib/utils.js';
 	import { config } from '$lib/pbw';
 	import { format } from 'date-fns';
-	import { formatInTimeZone } from 'date-fns-tz'
+	import { formatInTimeZone } from 'date-fns-tz';
 
 	const colsDef = Object.fromEntries(
 		Object.keys(config.collections).map((col) => {
@@ -38,26 +38,28 @@
 		return dates;
 	}
 
-	function enrichItem (it) {
-		if (!it || !it.segments) return it
+	function enrichItem(it) {
+		if (!it || !it.segments) return it;
 		// segments
-		let segments = it.segments
+		let segments = it.segments;
 		for (let i = 0; i < segments.length; i++) {
-			const sg = segments[i]
+			const sg = segments[i];
 			if (sg.remote) {
-				const event = data.bundle.events.find(e => e.id === sg.remote)
+				const event = data.bundle.events.find((e) => e.id === sg.remote);
 				if (!event || !event.segments) {
-					continue
+					continue;
 				}
-				const remoteSegments = event.segments.map(rs => Object.assign(rs, {
-					event,
-					remote: true
-				}))
-				segments.splice(i, remoteSegments.length, ...remoteSegments)
+				const remoteSegments = event.segments.map((rs) =>
+					Object.assign(rs, {
+						event,
+						remote: true
+					})
+				);
+				segments.splice(i, remoteSegments.length, ...remoteSegments);
 			}
 		}
-		it.segments = segments
-		return it
+		it.segments = segments;
+		return it;
 	}
 
 	$: entry = $page.params.entry;
@@ -66,38 +68,49 @@
 	$: item = enrichItem(data.bundle[colPlural].find((e) => e.id === $page.params.slug));
 	$: defs = data.schema ? data.schema.definitions[col] : {};
 
-	function venuesMap (arr, rich = false) {
-		return arr.map((vId) => {
-			const place = data.bundle.places.find((p) => p.id === vId);
-			return rich ? `<a href="/${$page.params.entry}/place/${place.id}" class=\"underline hover:no-underline\">${place.name}</a>` : place.name;
-		})
-		.join(', ')
+	function venuesMap(arr, rich = false) {
+		return arr
+			.map((vId) => {
+				const place = data.bundle.places.find((p) => p.id === vId);
+				return rich
+					? `<a href="/${$page.params.entry}/place/${place.id}" class=\"underline hover:no-underline\">${place.name}</a>`
+					: place.name;
+			})
+			.join(', ');
 	}
 
-	$: itemDescription = col === 'event' ? `${formatItemDate(item, { full: true })} @ ${item.venues ? venuesMap(item.venues) : item.venueName }. ${item.tags ? item.tags.join(', ') : ''}` : null
-	$: itemImage = item[config.collections[colPlural]?.img || 'logo']
+	$: itemDescription =
+		col === 'event'
+			? `${formatItemDate(item, { full: true })} @ ${
+					item.venues ? venuesMap(item.venues) : item.venueName
+			  }. ${item.tags ? item.tags.join(', ') : ''}`
+			: null;
+	$: itemImage = item[config.collections[colPlural]?.img || 'logo'];
 </script>
 
 <svelte:head>
 	<title>{item.name} | #PBW{$page.params.entry}</title>
-	<meta name="description" content={itemDescription}>
-    <meta name="keywords" content={item.tags ? item.tags.join(", ") : ""}>
+	<meta name="description" content={itemDescription} />
+	<meta name="keywords" content={item.tags ? item.tags.join(', ') : ''} />
 
 	{#if item.links?.web}
-		<meta property="og:url" content={item.links.web}>
-		<meta property="og:type" content="website">
+		<meta property="og:url" content={item.links.web} />
+		<meta property="og:type" content="website" />
 	{/if}
-	<meta property="og:title" content={item.name}>
-	<meta property="og:description" content={itemDescription}>
-	<meta property="og:image" content={itemImage}>
+	<meta property="og:title" content={item.name} />
+	<meta property="og:description" content={itemDescription} />
+	<meta property="og:image" content={itemImage} />
 
-    <meta name="twitter:card" content="summary" />
+	<meta name="twitter:card" content="summary" />
 	{#if item.links?.twitter}
-    	<meta name="twitter:site" content="@{item.links.twitter.replace(/https?:\/\/(twitter\.com\/)/g,'')}" />
+		<meta
+			name="twitter:site"
+			content="@{item.links.twitter.replace(/https?:\/\/(twitter\.com\/)/g, '')}"
+		/>
 	{/if}
-    <meta name="twitter:title" content="{item.name} | #PBW{$page.params.entry}" />
-    <meta name="twitter:description" content={itemDescription} />
-    <meta name="twitter:image" content={itemImage} />
+	<meta name="twitter:title" content="{item.name} | #PBW{$page.params.entry}" />
+	<meta name="twitter:description" content={itemDescription} />
+	<meta name="twitter:image" content={itemImage} />
 </svelte:head>
 
 <Header path={colsDef[$page.params.type]} type={$page.params.type} />
@@ -370,7 +383,11 @@
 							<div class="mt-4">
 								<CalendarList
 									{date}
-									segments={item.segments.filter((s) => s.remote || formatInTimeZone(new Date(s.startTime), config.tz, 'yyyy-MM-dd') === date)}
+									segments={item.segments.filter(
+										(s) =>
+											s.remote ||
+											formatInTimeZone(new Date(s.startTime), config.tz, 'yyyy-MM-dd') === date
+									)}
 									{entry}
 									bundle={data.bundle}
 									event={item}
@@ -386,7 +403,12 @@
 					<div
 						class="grid grid-cols-3 sm:grid-cols-4 md:grid-cols-6 xl:grid-cols-8 mt-4 text-center text-xl"
 					>
-						<CollectionList arr={item.speakers} bundle={data.bundle} currentItem={item} circle="true" />
+						<CollectionList
+							arr={item.speakers}
+							bundle={data.bundle}
+							currentItem={item}
+							circle="true"
+						/>
 					</div>
 				{/if}
 				{#if item.events}
diff --git a/src/routes/[entry]/for-speakers/+page.svelte b/src/routes/[entry]/for-speakers/+page.svelte
index 9be5096b..aa753d67 100644
--- a/src/routes/[entry]/for-speakers/+page.svelte
+++ b/src/routes/[entry]/for-speakers/+page.svelte
@@ -45,7 +45,9 @@
 								>
 							</div>
 						</div>
-						<div class="mt-2 pbw-text-color-secondary">Date: <span>{formatItemDate(event, { full: true })}</span></div>
+						<div class="mt-2 pbw-text-color-secondary">
+							Date: <span>{formatItemDate(event, { full: true })}</span>
+						</div>
 						{#if event.cfp.text}
 							<div class="mt-2 pbw-text-color-secondary">{event.cfp.text}</div>
 						{/if}