diff --git a/.lintstagedrc.js b/.lintstagedrc.mjs
similarity index 89%
rename from .lintstagedrc.js
rename to .lintstagedrc.mjs
index 76ea0b0a1..f0ae6d5d1 100644
--- a/.lintstagedrc.js
+++ b/.lintstagedrc.mjs
@@ -1,4 +1,4 @@
-module.exports = {
+export default {
     "*.{j,t}s": ["eslint", "prettier --write"],
     "src/schemas/{*,**/*}.ts": [() => "tsc -b -v", () => "node scripts/schema.js", () => "node scripts/openapi.js"],
 };
diff --git a/eslint.config.mjs b/eslint.config.mjs
index 17e64dc88..eb865c2ac 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -5,6 +5,7 @@ import path from "node:path";
 import { fileURLToPath } from "node:url";
 import js from "@eslint/js";
 import { FlatCompat } from "@eslint/eslintrc";
+import { defineConfig } from "eslint/config";
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
@@ -14,12 +15,13 @@ const compat = new FlatCompat({
     allConfig: js.configs.all,
 });
 
-export default [
+export default defineConfig([
     {
         ignores: ["**/node_modules", "**/dist", "**/README.md", "**/COPYING", "**/scripts/", "**/assets", "**/extra/"],
     },
     ...compat.extends("eslint:recommended", "plugin:@typescript-eslint/recommended"),
     {
+        files: ["**/*.ts"],
         plugins: {
             "@typescript-eslint": typescriptEslint,
         },
@@ -30,6 +32,11 @@ export default [
             },
 
             parser: tsParser,
+            parserOptions: {
+                ecmaVersion: "latest",
+                sourceType: "module",
+                project: "./tsconfig.json",
+            },
         },
 
         rules: {
@@ -38,6 +45,11 @@ export default [
             "@typescript-eslint/no-var-requires": "off", // Sometimes requred by typeorm to resolve circular deps
             "@typescript-eslint/no-require-imports": "off",
             "@typescript-eslint/no-unused-vars": "off",
+            "@typescript-eslint/no-deprecated": "warn",
         },
     },
-];
+    {
+        files: ["**/*.js", "**/*.cjs", "**/*.mjs"],
+        extends: typescriptEslint.configs?.disableTypeChecked ? [typescriptEslint.configs.disableTypeChecked] : [],
+    },
+]);
diff --git a/scripts/schemaExclusions.json b/scripts/schemaExclusions.json
index b28476707..64e2bbf00 100644
--- a/scripts/schemaExclusions.json
+++ b/scripts/schemaExclusions.json
@@ -1,6 +1,10 @@
 {
-    "include": ["MessageInteractionSchema"],
-    "includeRe": ["^MessageComponentType\\..*"],
+    "include": [
+        "MessageInteractionSchema"
+    ],
+    "includeRe": [
+        "^MessageComponentType\\..*"
+    ],
     "manual": [
         "DefaultSchema",
         "Schema",
@@ -83,7 +87,9 @@
         "^Job"
     ],
     "manualWarn": [],
-    "manualWarnRe": [".*<.*>$"],
+    "manualWarnRe": [
+        ".*<.*>$"
+    ],
     "auto": [
         {
             "value": "StringSchema",
@@ -406,4 +412,4 @@
             "reason": "Schema with only uppercase properties"
         }
     ]
-}
+}
\ No newline at end of file
diff --git a/src/api/util/utility/RandomInviteID.ts b/src/api/util/utility/RandomInviteID.ts
index 0718a736e..d7f2c6296 100644
--- a/src/api/util/utility/RandomInviteID.ts
+++ b/src/api/util/utility/RandomInviteID.ts
@@ -49,7 +49,11 @@ export function snowflakeBasedInvite() {
         snowflake = snowflake / base;
     }
 
-    return str.substr(3, 8).split("").reverse().join("");
+    return str
+        .slice(3, 3 + 8)
+        .split("")
+        .reverse()
+        .join("");
 }
 
 export function randomUpperString(length: number = 10) {
diff --git a/src/util/util/Event.ts b/src/util/util/Event.ts
index a9f129c7b..e2be9b196 100644
--- a/src/util/util/Event.ts
+++ b/src/util/util/Event.ts
@@ -204,8 +204,8 @@ class UnixSocketListener {
                 while (buffer.length >= 4) {
                     const msgLen = buffer.readUInt32BE(0);
                     if (buffer.length < 4 + msgLen) break;
-                    const msgBuf = buffer.slice(4, 4 + msgLen);
-                    buffer = buffer.slice(4 + msgLen);
+                    const msgBuf = buffer.subarray(4, 4 + msgLen);
+                    buffer = buffer.subarray(4 + msgLen);
                     try {
                         const payload = JSON.parse(msgBuf.toString());
                         this.eventEmitter.emit(payload.id, payload.event);