root author like

src/api/models/post-thread.tsx

···
 export interface PostDescendantItem extends BaseDescendant {
 	type: 'post';
 	post: AppBskyFeedDefs.PostView;
+	context: AppBskyFeedDefs.ThreadContext | undefined;
 	prev: boolean;
 	next: boolean;
 }
···
 						id: post.uri,
 						type: 'post',
 						post: post,
+						context: reply.threadContext,
 						prev: depth !== 0,
 						next: children.length !== 0,
 						lines: nlines,

src/api/queries/profile.ts

···
 import { modifyMutable, reconcile } from 'solid-js/store';
 
-import type { AppBskyActorDefs } from '@atcute/client/lexicons';
+import type { AppBskyActorDefs, At } from '@atcute/client/lexicons';
 import { createQuery } from '@mary/solid-query';
 
 import { useAgent } from '~/lib/states/agent';
 import { useSession } from '~/lib/states/session';
 
+import { findProfilesInCache } from '../cache/profile-shadow';
 import { dequal } from '../utils/dequal';
 
 export interface ProfileQueryOptions {
···
 				return data;
 			},
 			placeholderData(): AppBskyActorDefs.ProfileViewDetailed | undefined {
-				return queryClient.getQueryData(['profile-precache', $didOrHandle]);
+				const precache = queryClient.getQueryData(['profile-precache', $didOrHandle]);
+				if (precache) {
+					return precache as any;
+				}
+
+				for (const profile of findProfilesInCache(queryClient, $didOrHandle as At.DID)) {
+					return profile as any;
+				}
 			},
 			initialData(): AppBskyActorDefs.ProfileViewDetailed | undefined {
 				if (currentAccount !== undefined && currentAccount.did === $didOrHandle) {

src/components/threads/post-thread-item.tsx

···
 					<div class="min-w-0 grow py-3">
 						<PostMeta
 							post={/* @once */ post()}
+							context={(item() as PostDescendantItem).context}
 							href={href}
 							authorHref={authorHref}
 							gutterBottom

src/components/timeline/post-meta.tsx

···
 
 import { openModal } from '~/globals/modals';
 
+import Avatar from '../avatar';
+import HeartSolidIcon from '../icons-central/heart-solid';
 import MoreHorizOutlinedIcon from '../icons-central/more-horiz-outline';
 import TimeAgo from '../time-ago';
 
···
 export interface PostMetaProps {
 	/** Expected to be static */
 	post: AppBskyFeedDefs.PostView;
+	context?: AppBskyFeedDefs.ThreadContext;
+	/** Expected to be static */
 	authorHref: string;
+	/** Expected to be static */
 	href: string;
-	compact?: boolean;
+	/** Expected to be static */
 	gutterBottom?: boolean;
 	onPostDelete?: () => void;
 	onPostRedraft?: () => void;
 }
 
-const PostMeta = ({ post, authorHref, href, gutterBottom, onPostDelete, onPostRedraft }: PostMetaProps) => {
+const PostMeta = (props: PostMetaProps) => {
 	const queryClient = useQueryClient();
 
+	const post = props.post;
+	const href = props.href;
+	const authorHref = props.authorHref;
+	const gutterBottom = props.gutterBottom;
+
+	const onPostDelete = props.onPostDelete;
+	const onPostRedraft = props.onPostRedraft;
+
 	const author = post.author;
 	const indexedAt = post.indexedAt;
 
···
 				</TimeAgo>
 			</div>
 
-			<div class="shrink-0">
+			<div class="flex shrink-0 items-center gap-4">
+				{props.context?.rootAuthorLike && (
+					<div class="relative">
+						<Avatar type="user" size={null} class="h-[18px] w-[18px]" />
+						<HeartSolidIcon class="absolute -bottom-1 -left-1.5 h-[14px] w-[14px] stroke-background stroke-[3] text-p-red-600" />
+					</div>
+				)}
+
 				<button
 					onClick={(ev) => {
 						const anchor = ev.currentTarget;