diff --git a/src/app.ts b/src/app.ts
index a719b78..82e083c 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -30,7 +30,7 @@ import { emptyArrayController, emptyObjectController } from './controllers/api/f
 import { instanceController } from './controllers/api/instance.ts';
 import { notificationsController } from './controllers/api/notifications.ts';
 import { createTokenController, oauthAuthorizeController, oauthController } from './controllers/api/oauth.ts';
-import { frontendConfigController } from './controllers/api/pleroma.ts';
+import { frontendConfigController, updateConfigController } from './controllers/api/pleroma.ts';
 import { preferencesController } from './controllers/api/preferences.ts';
 import { relayController } from './controllers/nostr/relay.ts';
 import { searchController } from './controllers/api/search.ts';
@@ -55,7 +55,7 @@ import { nodeInfoController, nodeInfoSchemaController } from './controllers/well
 import { nostrController } from './controllers/well-known/nostr.ts';
 import { webfingerController } from './controllers/well-known/webfinger.ts';
 import { auth19, requirePubkey } from './middleware/auth19.ts';
-import { auth98 } from './middleware/auth98.ts';
+import { auth98, requireAdmin } from './middleware/auth98.ts';
 
 interface AppEnv extends HonoEnv {
   Variables: {
@@ -136,6 +136,8 @@ app.get('/api/v1/trends', trendingTagsController);
 app.get('/api/v1/notifications', requirePubkey, notificationsController);
 app.get('/api/v1/favourites', requirePubkey, favouritesController);
 
+app.post('/api/v1/pleroma/admin/config', requireAdmin, updateConfigController);
+
 // Not (yet) implemented.
 app.get('/api/v1/bookmarks', emptyArrayController);
 app.get('/api/v1/custom_emojis', emptyArrayController);
diff --git a/src/controllers/api/pleroma.ts b/src/controllers/api/pleroma.ts
index 992531e..396df5c 100644
--- a/src/controllers/api/pleroma.ts
+++ b/src/controllers/api/pleroma.ts
@@ -1,7 +1,46 @@
 import { type AppController } from '@/app.ts';
+import * as eventsDB from '@/db/events.ts';
+import { z } from '@/deps.ts';
+import { configSchema, elixirTupleSchema } from '@/schemas/pleroma-api.ts';
+import { createAdminEvent } from '@/utils/web.ts';
+import { Conf } from '@/config.ts';
+
+const frontendConfigController: AppController = async (c) => {
+  const [event] = await eventsDB.getFilters(
+    [{ kinds: [30078], authors: [Conf.pubkey], limit: 1 }],
+  );
+
+  if (event) {
+    const data = JSON.parse(event.content);
+    return c.json(data);
+  }
 
-const frontendConfigController: AppController = (c) => {
   return c.json({});
 };
 
-export { frontendConfigController };
+/** Pleroma admin config controller. */
+const updateConfigController: AppController = async (c) => {
+  const json = await c.req.json();
+  const { configs } = z.object({ configs: z.array(configSchema) }).parse(json);
+
+  for (const { group, key, value } of configs) {
+    if (group === ':pleroma' && key === ':frontend_configurations') {
+      const schema = elixirTupleSchema.transform(({ tuple }) => tuple).array();
+
+      const data = schema.parse(value).reduce<Record<string, unknown>>((result, [name, data]) => {
+        result[name.replace(/^:/, '')] = data;
+        return result;
+      }, {});
+
+      await createAdminEvent({
+        kind: 30078,
+        content: JSON.stringify(data),
+        tags: [['d', 'pub.ditto.frontendConfig']],
+      }, c);
+    }
+  }
+
+  return c.json([]);
+};
+
+export { frontendConfigController, updateConfigController };
diff --git a/src/db.ts b/src/db.ts
index 78b4c1c..2deca9a 100644
--- a/src/db.ts
+++ b/src/db.ts
@@ -39,7 +39,7 @@ interface UserRow {
   pubkey: string;
   username: string;
   inserted_at: Date;
-  admin: boolean;
+  admin: 0 | 1;
 }
 
 interface RelayRow {
diff --git a/src/db/users.ts b/src/db/users.ts
index 632eca7..0e8d9a0 100644
--- a/src/db/users.ts
+++ b/src/db/users.ts
@@ -2,6 +2,13 @@ import { type Insertable } from '@/deps.ts';
 
 import { db, type UserRow } from '../db.ts';
 
+interface User {
+  pubkey: string;
+  username: string;
+  inserted_at: Date;
+  admin: boolean;
+}
+
 /** Adds a user to the database. */
 function insertUser(user: Insertable<UserRow>) {
   return db.insertInto('users').values(user).execute();
@@ -14,14 +21,21 @@ function insertUser(user: Insertable<UserRow>) {
  * await findUser({ username: 'alex' });
  * ```
  */
-function findUser(user: Partial<Insertable<UserRow>>) {
+async function findUser(user: Partial<Insertable<UserRow>>): Promise<User | undefined> {
   let query = db.selectFrom('users').selectAll();
 
   for (const [key, value] of Object.entries(user)) {
     query = query.where(key as keyof UserRow, '=', value);
   }
 
-  return query.executeTakeFirst();
+  const row = await query.executeTakeFirst();
+
+  if (row) {
+    return {
+      ...row,
+      admin: row.admin === 1,
+    };
+  }
 }
 
-export { findUser, insertUser };
+export { findUser, insertUser, type User };
diff --git a/src/pipeline.ts b/src/pipeline.ts
index 14a364a..573dafb 100644
--- a/src/pipeline.ts
+++ b/src/pipeline.ts
@@ -1,3 +1,4 @@
+import { Conf } from '@/config.ts';
 import * as eventsDB from '@/db/events.ts';
 import { addRelays } from '@/db/relays.ts';
 import { findUser } from '@/db/users.ts';
@@ -42,10 +43,13 @@ async function getEventData({ pubkey }: Event): Promise<EventData> {
   return { user };
 }
 
+/** Check if the pubkey is the `DITTO_NSEC` pubkey. */
+const isAdminEvent = ({ pubkey }: Event): boolean => pubkey === Conf.pubkey;
+
 /** Maybe store the event, if eligible. */
 async function storeEvent(event: Event, data: EventData): Promise<void> {
   if (isEphemeralKind(event.kind)) return;
-  if (data.user || await isLocallyFollowed(event.pubkey)) {
+  if (data.user || isAdminEvent(event) || await isLocallyFollowed(event.pubkey)) {
     await eventsDB.insertEvent(event).catch(console.warn);
   } else {
     return Promise.reject(new RelayError('blocked', 'only registered users can post'));
diff --git a/src/schemas/pleroma-api.ts b/src/schemas/pleroma-api.ts
new file mode 100644
index 0000000..839b442
--- /dev/null
+++ b/src/schemas/pleroma-api.ts
@@ -0,0 +1,46 @@
+import { z } from '@/deps.ts';
+
+type ElixirValue =
+  | string
+  | number
+  | boolean
+  | null
+  | ElixirTuple
+  | ElixirValue[]
+  | { [key: string]: ElixirValue };
+
+interface ElixirTuple {
+  tuple: [string, ElixirValue];
+}
+
+interface Config {
+  group: string;
+  key: string;
+  value: ElixirValue;
+}
+
+const baseElixirValueSchema: z.ZodType<ElixirValue> = z.union([
+  z.string(),
+  z.number(),
+  z.boolean(),
+  z.null(),
+  z.lazy(() => elixirValueSchema.array()),
+  z.lazy(() => z.record(z.string(), elixirValueSchema)),
+]);
+
+const elixirTupleSchema: z.ZodType<ElixirTuple> = z.object({
+  tuple: z.tuple([z.string(), z.lazy(() => elixirValueSchema)]),
+});
+
+const elixirValueSchema: z.ZodType<ElixirValue> = z.union([
+  baseElixirValueSchema,
+  elixirTupleSchema,
+]);
+
+const configSchema: z.ZodType<Config> = z.object({
+  group: z.string(),
+  key: z.string(),
+  value: elixirValueSchema,
+});
+
+export { type Config, configSchema, type ElixirTuple, elixirTupleSchema, type ElixirValue };
diff --git a/src/transformers/nostr-to-mastoapi.ts b/src/transformers/nostr-to-mastoapi.ts
index ca8c411..aa0b231 100644
--- a/src/transformers/nostr-to-mastoapi.ts
+++ b/src/transformers/nostr-to-mastoapi.ts
@@ -9,6 +9,7 @@ import { emojiTagSchema, filteredArray } from '@/schema.ts';
 import { jsonMetaContentSchema } from '@/schemas/nostr.ts';
 import { isFollowing, type Nip05, nostrDate, parseNip05, Time } from '@/utils.ts';
 import { verifyNip05Cached } from '@/utils/nip05.ts';
+import { findUser } from '@/db/users.ts';
 
 const DEFAULT_AVATAR = 'https://gleasonator.com/images/avi.png';
 const DEFAULT_BANNER = 'https://gleasonator.com/images/banner.png';
@@ -24,7 +25,8 @@ async function toAccount(event: Event<0>, opts: ToAccountOpts = {}) {
   const { name, nip05, picture, banner, about } = jsonMetaContentSchema.parse(event.content);
   const npub = nip19.npubEncode(pubkey);
 
-  const [parsed05, followersCount, followingCount, statusesCount] = await Promise.all([
+  const [user, parsed05, followersCount, followingCount, statusesCount] = await Promise.all([
+    findUser({ pubkey }),
     parseAndVerifyNip05(nip05, pubkey),
     eventsDB.countFilters([{ kinds: [3], '#p': [pubkey] }]),
     getFollowedPubkeys(pubkey).then((pubkeys) => pubkeys.length),
@@ -65,6 +67,10 @@ async function toAccount(event: Event<0>, opts: ToAccountOpts = {}) {
     statuses_count: statusesCount,
     url: Conf.local(`/users/${pubkey}`),
     username: parsed05?.nickname || npub.substring(0, 8),
+    pleroma: {
+      is_admin: user?.admin || false,
+      is_moderator: user?.admin || false,
+    },
   };
 }
 
diff --git a/src/types.ts b/src/types.ts
index 11f933d..445a6d1 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,6 +1,6 @@
-import { UserRow } from '@/db.ts';
+import { User } from '@/db/users.ts';
 interface EventData {
-  user: UserRow | undefined;
+  user: User | undefined;
 }
 
 export type { EventData };