diff --git a/bun.lockb b/bun.lockb
index ba9c6de..4462814 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index 9cb8d28..4ce5398 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,6 @@
   },
   "dependencies": {
     "brotli-wasm": "^2.0.1",
-    "bun-sqlite-key-value": "^1.4.5",
     "exit-hook": "^4.0.0",
     "firebase-admin": "^12.2.0",
     "prisma": "^5.17.0"
diff --git a/pkgs/utils/global.ts b/pkgs/utils/global.ts
index 6bc52c8..49c3976 100644
--- a/pkgs/utils/global.ts
+++ b/pkgs/utils/global.ts
@@ -3,10 +3,9 @@ import { Logger } from "pino";
 import { RadixRouter } from "radix3";
 import { PrismaClient } from "../../app/db/db";
 
-import admin from "firebase-admin";
 import { Database } from "bun:sqlite";
-import { prodIndex } from "./prod-index";
-import { BunSqliteKeyValue } from "bun-sqlite-key-value";
+import admin from "firebase-admin";
+import { BunSqliteKeyValue } from "./kv";
 
 type SingleRoute = {
   url: string;
diff --git a/pkgs/utils/kv.ts b/pkgs/utils/kv.ts
new file mode 100644
index 0000000..6283d1b
--- /dev/null
+++ b/pkgs/utils/kv.ts
@@ -0,0 +1,430 @@
+import { Database, type Statement } from "bun:sqlite";
+import { serialize, deserialize } from "node:v8";
+import { dirname, resolve } from "node:path";
+import { existsSync, mkdirSync } from "node:fs";
+
+export interface Item<T> {
+  key: string;
+  value: T | undefined;
+}
+
+interface Record {
+  key: string;
+  value: Buffer | null;
+  expires: number | null;
+}
+
+interface Options {
+  readonly?: boolean;
+  create?: boolean; // Defaults to true
+  readwrite?: boolean; // Defaults to true
+  ttlMs?: number; // Default TTL milliseconds
+}
+
+interface DbOptions extends Omit<Options, "ttlMs"> {
+  strict: boolean;
+}
+
+const MIN_UTF8_CHAR: string = String.fromCodePoint(1);
+const MAX_UTF8_CHAR: string = String.fromCodePoint(1_114_111);
+
+export class BunSqliteKeyValue {
+  db: Database;
+  ttlMs: number | undefined;
+
+  private deleteExpiredStatement: Statement;
+  private deleteStatement: Statement;
+  private clearStatement: Statement;
+  private countStatement: Statement<{ count: number }>;
+  private setItemStatement: Statement;
+  private getItemStatement: Statement<Omit<Record, "key">>;
+  private getAllItemsStatement: Statement<Record>;
+  private getItemsStartsWithStatement: Statement<Record>;
+  private getKeyStatement: Statement<Omit<Record, "key" | "value">>;
+  private getAllKeysStatement: Statement<Omit<Record, "value">>;
+  private getKeysStartsWithStatement: Statement<Omit<Record, "value">>;
+  private countExpiringStatement: Statement<{ count: number }>;
+  private deleteExpiringStatement: Statement;
+
+  // - `filename`: The full path of the SQLite database to open.
+  //    Pass an empty string (`""`) or `":memory:"` or undefined for an in-memory database.
+  // - `options`:
+  //    - ...
+  //    - `ttlMs?: boolean`: Standard time period in milliseconds before
+  //       an entry written to the DB becomes invalid.
+  constructor(filename?: string, options?: Options) {
+    // Parse options
+    const { ttlMs, ...otherOptions } = options ?? {};
+    this.ttlMs = ttlMs;
+    const dbOptions: DbOptions = {
+      ...otherOptions,
+      strict: true,
+      readwrite: otherOptions?.readwrite ?? true,
+      create: otherOptions?.create ?? true,
+    };
+
+    // Create database directory
+    if (
+      filename?.length &&
+      filename.toLowerCase() !== ":memory:" &&
+      dbOptions.create
+    ) {
+      const dbDir = dirname(resolve(filename));
+      if (!existsSync(dbDir)) {
+        console.log(`The "${dbDir}" folder is created.`);
+        mkdirSync(dbDir, { recursive: true });
+      }
+    }
+
+    // Open database
+    this.db = new Database(filename, dbOptions);
+    this.db.run("PRAGMA journal_mode = WAL");
+
+    // Create table and indexes
+    this.db.run(
+      "CREATE TABLE IF NOT EXISTS items (key TEXT PRIMARY KEY, value BLOB, expires INT)"
+    );
+    this.db.run(
+      "CREATE UNIQUE INDEX IF NOT EXISTS ix_items_key ON items (key)"
+    );
+    this.db.run(
+      "CREATE INDEX IF NOT EXISTS ix_items_expires ON items (expires)"
+    );
+
+    // Prepare and cache statements
+    this.clearStatement = this.db.query("DELETE FROM items");
+    this.deleteStatement = this.db.query("DELETE FROM items WHERE key = $key");
+    this.deleteExpiredStatement = this.db.query(
+      "DELETE FROM items WHERE expires < $now"
+    );
+
+    this.setItemStatement = this.db.query(
+      "INSERT OR REPLACE INTO items (key, value, expires) VALUES ($key, $value, $expires)"
+    );
+    this.countStatement = this.db.query("SELECT COUNT(*) AS count FROM items");
+
+    this.getAllItemsStatement = this.db.query(
+      "SELECT key, value, expires FROM items"
+    );
+    this.getItemStatement = this.db.query(
+      "SELECT value, expires FROM items WHERE key = $key"
+    );
+    this.getItemsStartsWithStatement = this.db.query(
+      "SELECT key, value, expires FROM items WHERE key = $key OR key >= $gte AND key < $lt"
+    );
+
+    this.getAllKeysStatement = this.db.query("SELECT key, expires FROM items");
+    this.getKeyStatement = this.db.query(
+      "SELECT expires FROM items WHERE key = $key"
+    );
+    this.getKeysStartsWithStatement = this.db.query(
+      "SELECT key, expires FROM items WHERE (key = $key OR key >= $gte AND key < $lt)"
+    );
+
+    this.countExpiringStatement = this.db.query(
+      "SELECT COUNT(*) as count FROM items WHERE expires IS NOT NULL"
+    );
+    this.deleteExpiringStatement = this.db.query(`
+        DELETE FROM items
+        WHERE key IN (
+            SELECT key FROM items
+            WHERE expires IS NOT NULL
+            ORDER BY expires ASC
+            LIMIT $limit
+        )`);
+
+    // Delete expired items
+    this.deleteExpired();
+  }
+
+  // Delete all expired records
+  deleteExpired() {
+    this.deleteExpiredStatement.run({ now: Date.now() });
+  }
+
+  // Delete one or multiple items
+  delete(keyOrKeys?: string | string[]) {
+    if (typeof keyOrKeys === "string") {
+      // Delete one
+      this.deleteStatement.run({ key: keyOrKeys });
+    } else if (keyOrKeys?.length) {
+      // Delete multiple items
+      this.db.transaction(() => {
+        keyOrKeys.forEach((key) => {
+          this.deleteStatement.run({ key });
+        });
+      })();
+    } else {
+      // Delete all
+      this.clearStatement.run();
+    }
+  }
+
+  // Delete all items
+  clear() {
+    this.delete();
+  }
+
+  // Explicitly close database
+  // Removes .sqlite-shm and .sqlite-wal files
+  close() {
+    this.db.close();
+  }
+
+  // Returns the number of all items, including those that have already expired.
+  // First delete the expired items with `deleteExpired()`
+  // if you want to get the number of items that have not yet expired.
+  getCount(): number {
+    return (this.countStatement.get() as { count: number }).count;
+  }
+
+  // Getter for getCount()
+  get length() {
+    return this.getCount();
+  }
+
+  // @param ttlMs:
+  // Time to live in milliseconds.
+  // Set ttlMs to 0 if you explicitly want to disable expiration.
+  set<T = any>(key: string, value: T, ttlMs?: number) {
+    let expires: number | undefined;
+    ttlMs = ttlMs ?? this.ttlMs;
+    if (ttlMs !== undefined && ttlMs > 0) {
+      expires = Date.now() + ttlMs;
+    }
+    this.setItemStatement.run({ key, value: serialize(value), expires });
+  }
+
+  // Alias for `set`
+  setValue = this.set;
+  put = this.set;
+
+  // Adds a large number of entries to the database and takes only
+  // a small fraction of the time that `set()` would take individually.
+  setItems<T = any>(items: { key: string; value: T; ttlMs?: number }[]) {
+    this.db.transaction(() => {
+      items.forEach(({ key, value, ttlMs }) => {
+        this.set<T>(key, value, ttlMs);
+      });
+    })();
+  }
+
+  // Get one value
+  get<T = any>(key: string): T | undefined {
+    const record = this.getItemStatement.get({ key });
+    if (!record) return;
+    const { value, expires } = record;
+    if (expires) {
+      if (expires < Date.now()) {
+        this.delete(key);
+        return;
+      }
+    }
+    return value ? (deserialize(value) as T) : undefined;
+  }
+
+  // Alias for `get`
+  getValue = this.get;
+
+  // Get one item (key, value)
+  getItem<T = any>(key: string): Item<T> | undefined {
+    return {
+      key,
+      value: this.get<T>(key),
+    };
+  }
+
+  // Get multiple items (key-value array)
+  getItems<T = any>(
+    startsWithOrKeys?: string | string[]
+  ): Item<T>[] | undefined {
+    let records: Record[];
+    if (startsWithOrKeys && typeof startsWithOrKeys === "string") {
+      // Filtered items (startsWith)
+      //   key = "addresses:"
+      //   gte = key + MIN_UTF8_CHAR
+      //   "addresses:aaa"
+      //   "addresses:xxx"
+      // lt = key + MAX_UTF8_CHAR
+      const key: string = startsWithOrKeys;
+      const gte: string = key + MIN_UTF8_CHAR;
+      const lt: string = key + MAX_UTF8_CHAR;
+      records = this.getItemsStartsWithStatement.all({ key, gte, lt });
+    } else if (startsWithOrKeys) {
+      // Filtered items (array with keys)
+      records = this.db.transaction(() => {
+        return (startsWithOrKeys as string[]).map((key: string) => {
+          const record = this.getItemStatement.get({ key });
+          return { ...record, key };
+        });
+      })();
+    } else {
+      // All items
+      records = this.getAllItemsStatement.all();
+    }
+    if (!records.length) return;
+    const now = Date.now();
+    const result: Item<T>[] = [];
+    for (const record of records) {
+      const { key, value, expires } = record;
+      if (expires && expires < now) {
+        this.delete(key);
+      } else {
+        result.push({
+          key,
+          value: value ? (deserialize(value) as T) : undefined,
+        });
+      }
+    }
+    if (result.length) {
+      return result;
+    }
+  }
+
+  // Alias for getItems
+  getItemsArray = this.getItems;
+
+  // Get multiple values as array
+  getValues<T = any>(
+    startsWithOrKeys?: string | string[]
+  ): (T | undefined)[] | undefined {
+    return this.getItems<T>(startsWithOrKeys)?.map((result) => result.value);
+  }
+
+  // Alias for getValues
+  getValuesArray = this.getValues;
+
+  // Get multiple items as object
+  getItemsObject<T = any>(
+    startsWithOrKeys?: string | string[]
+  ): { [key: string]: T | undefined } | undefined {
+    const items = this.getItems(startsWithOrKeys);
+    if (!items) return;
+    return Object.fromEntries(
+      items.map((item) => [item.key, item.value as T | undefined])
+    );
+  }
+
+  // Get multiple items as Map()
+  getItemsMap<T = any>(
+    startsWithOrKeys?: string | string[]
+  ): Map<string, T | undefined> | undefined {
+    const items = this.getItems(startsWithOrKeys);
+    if (!items) return;
+    return new Map(
+      items.map((item) => [item.key, item.value as T | undefined])
+    );
+  }
+
+  // Get multiple values as Set()
+  getValuesSet<T = any>(
+    startsWithOrKeys?: string | string[]
+  ): Set<T> | undefined {
+    const values = this.getValues(startsWithOrKeys);
+    if (!values) return;
+    return new Set(values);
+  }
+
+  // Checks if key exists
+  has(key: string): boolean {
+    const record = this.getKeyStatement.get({ key });
+    if (!record) return false;
+    if (record.expires) {
+      if (record.expires < Date.now()) {
+        this.delete(key);
+        return false;
+      }
+    }
+    return true;
+  }
+
+  // Get multiple keys as array
+  getKeys(startsWithOrKeys?: string | string[]): string[] | undefined {
+    let records: (Omit<Record, "value"> | undefined)[];
+    if (startsWithOrKeys && typeof startsWithOrKeys === "string") {
+      const key: string = startsWithOrKeys;
+      const gte: string = key + MIN_UTF8_CHAR;
+      const lt: string = key + MAX_UTF8_CHAR;
+      records = this.getKeysStartsWithStatement.all({ key, gte, lt });
+    } else if (startsWithOrKeys) {
+      // Filtered items (array with keys)
+      records = this.db.transaction(() => {
+        return (startsWithOrKeys as string[]).map((key: string) => {
+          const record = this.getKeyStatement.get({ key });
+          return record ? { ...record, key } : undefined;
+        });
+      })();
+    } else {
+      // All items
+      records = this.getAllKeysStatement.all();
+    }
+    if (!records?.length) return;
+    const now = Date.now();
+    const result: string[] = [];
+    for (const record of records) {
+      if (!record) continue;
+      const { key, expires } = record;
+      if (expires && expires < now) {
+        this.delete(key);
+      } else {
+        result.push(key);
+      }
+    }
+    if (result.length) {
+      return result;
+    }
+  }
+
+  getExpiringItemsCount() {
+    return this.countExpiringStatement.get()!.count;
+  }
+
+  // If there are more expiring items in the database than `maxExpiringItemsInDb`,
+  // the oldest items are deleted until there are only `maxExpiringItemsInDb` items with
+  // an expiration date in the database.
+  deleteOldExpiringItems(maxExpiringItemsInDb: number) {
+    const count = this.getExpiringItemsCount();
+    if (count <= maxExpiringItemsInDb) return;
+
+    const limit = count - maxExpiringItemsInDb;
+    this.deleteExpiringStatement.run({ limit });
+  }
+
+  // Alias for deleteOldExpiringItems
+  deleteOldestExpiringItems = this.deleteOldExpiringItems;
+
+  // Proxy
+  getDataObject(): { [key: string]: any } {
+    const self = this;
+    return new Proxy(
+      {},
+      {
+        get(target, property: string, receiver) {
+          if (property === "length") {
+            return self.length;
+          } else {
+            return self.get(property);
+          }
+        },
+
+        set(target, property: string, value: any) {
+          self.set(property, value);
+          return true;
+        },
+
+        has(target, property: string) {
+          return self.has(property);
+        },
+
+        deleteProperty(target: {}, property: string) {
+          self.delete(property);
+          return true;
+        },
+      }
+    );
+  }
+
+  get dataObject() {
+    return this.getDataObject();
+  }
+}