Try wrapping slow queries in transaction

src/controllers/api/timelines.ts

@@ -1,3 +1,4 @@
+import { db } from '@/db.ts';
 import { z } from '@/deps.ts';
 import { type DittoFilter } from '@/filter.ts';
 import * as mixer from '@/mixer.ts';
@@ -40,8 +41,10 @@ async function renderStatuses(c: AppContext, filters: DittoFilter<1>[]) {
     return c.json([]);
   }
 
+  return db.transaction().execute(async () => {
     const statuses = await Promise.all(events.map((event) => renderStatus(event, c.get('pubkey'))));
     return paginated(c, events, statuses);
+  })
 }
 
 export { hashtagTimelineController, homeTimelineController, publicTimelineController };

src/pipeline.ts

@@ -1,3 +1,4 @@
+import { db } from '@/db.ts';
 import { Conf } from '@/config.ts';
 import * as eventsDB from '@/db/events.ts';
 import { addRelays } from '@/db/relays.ts';
@@ -21,6 +22,8 @@ import type { EventData } from '@/types.ts';
  */
 async function handleEvent(event: Event): Promise<void> {
   if (encounterEvent(event)) return;
+
+  await db.transaction().execute(async () => {
     const data = await getEventData(event);
 
     await Promise.all([
@@ -32,6 +35,7 @@ async function handleEvent(event: Event): Promise<void> {
       streamOut(event, data),
       broadcast(event, data),
     ]);
+  })
 }
 
 /** Tracks encountered events to skip duplicates, improving idempotency and performance. */