diff --git a/tringifyStable from npm:fast-stable-stringify b/tringifyStable from npm:fast-stable-stringify
deleted file mode 100644
index edb0958..0000000
--- a/tringifyStable from npm:fast-stable-stringify	
+++ /dev/null
@@ -1,307 +0,0 @@
-diff --git a/src/client.ts b/src/client.ts
-index 970a077..3cf2e8a 100644
---- a/src/client.ts
-+++ b/src/client.ts
-@@ -14,7 +14,7 @@ function getFilters<K extends number>(filters: Filter<K>[], opts: GetFiltersOpts
- 
-     const unsub = pool.subscribe(
-       filters,
--      activeRelays,
-+      opts.relays ?? activeRelays,
-       (event: Event | null) => {
-         if (event && matchFilters(filters, event)) {
-           pipeline.handleEvent(event).catch(() => {});
-diff --git a/src/common.ts b/src/common.ts
-new file mode 100644
-index 0000000..0424b52
---- /dev/null
-+++ b/src/common.ts
-@@ -0,0 +1,9 @@
-+import { Reqmeister } from '@/reqmeister.ts';
-+import { Time } from '@/utils/time.ts';
-+
-+const reqmeister = new Reqmeister({
-+  delay: Time.seconds(1),
-+  signal: AbortSignal.timeout(Time.seconds(1)),
-+});
-+
-+export { reqmeister };
-diff --git a/src/deps.ts b/src/deps.ts
-index b9db9e2..4a9314b 100644
---- a/src/deps.ts
-+++ b/src/deps.ts
-@@ -81,5 +81,7 @@ export { Machina } from 'https://gitlab.com/soapbox-pub/nostr-machina/-/raw/08a1
- export * as Sentry from 'https://deno.land/x/sentry@7.78.0/index.js';
- export { sentry as sentryMiddleware } from 'npm:@hono/sentry@^1.0.0';
- export * as Comlink from 'npm:comlink@^4.4.1';
-+export { EventEmitter } from 'npm:tseep@^1.1.3';
-+export { default as stringifyStable } from 'npm:fast-stable-stringify@^1.0.0';
- 
- export type * as TypeFest from 'npm:type-fest@^4.3.0';
-diff --git a/src/filter.ts b/src/filter.ts
-index fb43251..38fcff7 100644
---- a/src/filter.ts
-+++ b/src/filter.ts
-@@ -1,5 +1,5 @@
- import { Conf } from '@/config.ts';
--import { type Event, type Filter, matchFilters } from '@/deps.ts';
-+import { type Event, type Filter, matchFilters, stringifyStable } from '@/deps.ts';
- 
- import type { EventData } from '@/types.ts';
- 
-@@ -14,12 +14,17 @@ interface DittoFilter<K extends number = number> extends Filter<K> {
-   relations?: Relation[];
- }
- 
-+/** Filter to get one specific event. */
-+type MicroFilter = { ids: [Event['id']] } | { kinds: [0]; authors: [Event['pubkey']] };
-+
- /** Additional options to apply to the whole subscription. */
- interface GetFiltersOpts {
-   /** Signal to abort the request. */
-   signal?: AbortSignal;
-   /** Event limit for the whole subscription. */
-   limit?: number;
-+  /** Relays to use, if applicable. */
-+  relays?: WebSocket['url'][];
- }
- 
- function matchDittoFilter(filter: DittoFilter, event: Event, data: EventData): boolean {
-@@ -44,4 +49,33 @@ function matchDittoFilters(filters: DittoFilter[], event: Event, data: EventData
-   return false;
- }
- 
--export { type DittoFilter, type GetFiltersOpts, matchDittoFilters, type Relation };
-+/** Get deterministic ID for a microfilter. */
-+function getFilterId(filter: MicroFilter): string {
-+  if ('ids' in filter) {
-+    return stringifyStable({ ids: [filter.ids] });
-+  } else {
-+    return stringifyStable({
-+      kinds: [filter.kinds[0]],
-+      authors: [filter.authors[0]],
-+    });
-+  }
-+}
-+
-+/** Get a microfilter from a Nostr event. */
-+function eventToMicroFilter(event: Event): MicroFilter {
-+  if (event.kind === 0) {
-+    return { kinds: [0], authors: [event.pubkey] };
-+  } else {
-+    return { ids: [event.id] };
-+  }
-+}
-+
-+export {
-+  type DittoFilter,
-+  eventToMicroFilter,
-+  getFilterId,
-+  type GetFiltersOpts,
-+  matchDittoFilters,
-+  type MicroFilter,
-+  type Relation,
-+};
-diff --git a/src/pipeline.ts b/src/pipeline.ts
-index adf8a84..923bf4e 100644
---- a/src/pipeline.ts
-+++ b/src/pipeline.ts
-@@ -1,3 +1,4 @@
-+import { reqmeister } from '@/common.ts';
- import { Conf } from '@/config.ts';
- import * as eventsDB from '@/db/events.ts';
- import { addRelays } from '@/db/relays.ts';
-@@ -23,15 +24,17 @@ import type { EventData } from '@/types.ts';
-  */
- async function handleEvent(event: Event): Promise<void> {
-   if (!(await verifySignatureWorker(event))) return;
-+  const wanted = reqmeister.isWanted(event);
-   if (encounterEvent(event)) return;
-   console.info(`pipeline: Event<${event.kind}> ${event.id}`);
-   const data = await getEventData(event);
- 
-   await Promise.all([
--    storeEvent(event, data),
-+    storeEvent(event, data, { force: wanted }),
-     processDeletions(event),
-     trackRelays(event),
-     trackHashtags(event),
-+    fetchRelatedEvents(event, data),
-     processMedia(event, data),
-     streamOut(event, data),
-     broadcast(event, data),
-@@ -39,13 +42,14 @@ async function handleEvent(event: Event): Promise<void> {
- }
- 
- /** Tracks encountered events to skip duplicates, improving idempotency and performance. */
--const encounters = new LRUCache<string, boolean>({ max: 1000 });
-+const encounters = new LRUCache<Event['id'], true>({ max: 1000 });
- 
- /** Encounter the event, and return whether it has already been encountered. */
--function encounterEvent(event: Event) {
-+function encounterEvent(event: Event): boolean {
-   const result = encounters.get(event.id);
-   encounters.set(event.id, true);
--  return result;
-+  reqmeister.encounter(event);
-+  return !!result;
- }
- 
- /** Preload data that will be useful to several tasks. */
-@@ -57,11 +61,16 @@ async function getEventData({ pubkey }: Event): Promise<EventData> {
- /** Check if the pubkey is the `DITTO_NSEC` pubkey. */
- const isAdminEvent = ({ pubkey }: Event): boolean => pubkey === Conf.pubkey;
- 
-+interface StoreEventOpts {
-+  force?: boolean;
-+}
-+
- /** Maybe store the event, if eligible. */
--async function storeEvent(event: Event, data: EventData): Promise<void> {
-+async function storeEvent(event: Event, data: EventData, opts: StoreEventOpts = {}): Promise<void> {
-   if (isEphemeralKind(event.kind)) return;
-+  const { force = false } = opts;
- 
--  if (data.user || isAdminEvent(event) || await isLocallyFollowed(event.pubkey)) {
-+  if (force || data.user || isAdminEvent(event) || await isLocallyFollowed(event.pubkey)) {
-     const [deletion] = await mixer.getFilters(
-       [{ kinds: [5], authors: [event.pubkey], '#e': [event.id], limit: 1 }],
-       { limit: 1, signal: AbortSignal.timeout(Time.seconds(1)) },
-@@ -129,6 +138,18 @@ function trackRelays(event: Event) {
-   return addRelays([...relays]);
- }
- 
-+/** Queue related events to fetch. */
-+function fetchRelatedEvents(event: Event, data: EventData) {
-+  if (!data.user) {
-+    reqmeister.req({ kinds: [0], authors: [event.pubkey] }).catch(() => {});
-+  }
-+  for (const [name, id, relay] of event.tags) {
-+    if (name === 'e' && !encounters.has(id)) {
-+      reqmeister.req({ ids: [id] }, [relay]).catch(() => {});
-+    }
-+  }
-+}
-+
- /** Delete unattached media entries that are attached to the event. */
- function processMedia({ tags, pubkey }: Event, { user }: EventData) {
-   if (user) {
-diff --git a/src/queries.ts b/src/queries.ts
-index fc7365a..1ecff7b 100644
---- a/src/queries.ts
-+++ b/src/queries.ts
-@@ -2,6 +2,7 @@ import * as eventsDB from '@/db/events.ts';
- import { type Event, findReplyTag } from '@/deps.ts';
- import { type DittoFilter, type Relation } from '@/filter.ts';
- import * as mixer from '@/mixer.ts';
-+import { reqmeister } from '@/common.ts';
- 
- interface GetEventOpts<K extends number> {
-   /** Signal to abort the request. */
-@@ -30,10 +31,10 @@ const getEvent = async <K extends number = number>(
- const getAuthor = async (pubkey: string, opts: GetEventOpts<0> = {}): Promise<Event<0> | undefined> => {
-   const { relations, signal = AbortSignal.timeout(1000) } = opts;
- 
--  const [event] = await mixer.getFilters(
-+  const event = await eventsDB.getFilters(
-     [{ authors: [pubkey], relations, kinds: [0], limit: 1 }],
-     { limit: 1, signal },
--  );
-+  ).then(([event]) => event) || await reqmeister.req({ kinds: [0], authors: [pubkey] }).catch(() => {});
- 
-   return event;
- };
-diff --git a/src/reqmeister.ts b/src/reqmeister.ts
-new file mode 100644
-index 0000000..960151f
---- /dev/null
-+++ b/src/reqmeister.ts
-@@ -0,0 +1,88 @@
-+import * as client from '@/client.ts';
-+import { type Event, EventEmitter, type Filter } from '@/deps.ts';
-+
-+import { eventToMicroFilter, getFilterId, type MicroFilter } from '@/filter.ts';
-+
-+interface ReqmeisterOpts {
-+  delay?: number;
-+  signal?: AbortSignal;
-+}
-+
-+type ReqmeisterQueueItem = [string, MicroFilter, WebSocket['url'][]];
-+
-+class Reqmeister extends EventEmitter<{ [filterId: string]: (event: Event) => any }> {
-+  #opts: ReqmeisterOpts;
-+  #queue: ReqmeisterQueueItem[] = [];
-+  #promise!: Promise<void>;
-+  #resolve!: () => void;
-+
-+  constructor(opts: ReqmeisterOpts = {}) {
-+    super();
-+    this.#opts = opts;
-+    this.#cycle();
-+    this.#perform();
-+  }
-+
-+  #cycle() {
-+    this.#resolve?.();
-+    this.#promise = new Promise((resolve) => {
-+      this.#resolve = resolve;
-+    });
-+  }
-+
-+  async #perform() {
-+    const { delay } = this.#opts;
-+    await new Promise((resolve) => setTimeout(resolve, delay));
-+
-+    const queue = this.#queue;
-+    this.#queue = [];
-+
-+    const wantedEvents = new Set<Event['id']>();
-+    const wantedAuthors = new Set<Event['pubkey']>();
-+
-+    // TODO: batch by relays.
-+    for (const [_filterId, filter, _relays] of queue) {
-+      if ('ids' in filter) {
-+        filter.ids.forEach((id) => wantedEvents.add(id));
-+      } else {
-+        wantedAuthors.add(filter.authors[0]);
-+      }
-+    }
-+
-+    const filters: Filter[] = [];
-+
-+    if (wantedEvents.size) filters.push({ ids: [...wantedEvents] });
-+    if (wantedAuthors.size) filters.push({ kinds: [0], authors: [...wantedAuthors] });
-+
-+    const events = await client.getFilters(filters, { signal: this.#opts.signal });
-+
-+    for (const event of events) {
-+      this.encounter(event);
-+    }
-+
-+    this.#cycle();
-+    this.#perform();
-+  }
-+
-+  req(filter: MicroFilter, relays: WebSocket['url'][] = []): Promise<Event> {
-+    const filterId = getFilterId(filter);
-+    this.#queue.push([filterId, filter, relays]);
-+    return new Promise<Event>((resolve, reject) => {
-+      this.once(filterId, resolve);
-+      this.#promise.finally(reject);
-+    });
-+  }
-+
-+  encounter(event: Event): void {
-+    const filterId = getFilterId(eventToMicroFilter(event));
-+    this.#queue = this.#queue.filter(([id]) => id !== filterId);
-+    this.emit(filterId, event);
-+  }
-+
-+  isWanted(event: Event): boolean {
-+    const filterId = getFilterId(eventToMicroFilter(event));
-+    return this.#queue.some(([id]) => id === filterId);
-+  }
-+}
-+
-+export { Reqmeister };