diff --git a/app/javascript/entrypoints/admin.tsx b/app/javascript/entrypoints/admin.tsx
index af9309d342c..a2c53d472b2 100644
--- a/app/javascript/entrypoints/admin.tsx
+++ b/app/javascript/entrypoints/admin.tsx
@@ -1,7 +1,7 @@
 import { createRoot } from 'react-dom/client';
 
-import Rails from '@rails/ujs';
 import { decode, ValidationError } from 'blurhash';
+import { on } from 'delegated-events';
 
 import ready from '../mastodon/ready';
 
@@ -24,10 +24,9 @@ const setAnnouncementEndsAttributes = (target: HTMLInputElement) => {
   }
 };
 
-Rails.delegate(
-  document,
-  'input[type="datetime-local"]#announcement_starts_at',
+on(
   'change',
+  'input[type="datetime-local"]#announcement_starts_at',
   ({ target }) => {
     if (target instanceof HTMLInputElement)
       setAnnouncementEndsAttributes(target);
@@ -63,7 +62,7 @@ const hideSelectAll = () => {
   if (hiddenField) hiddenField.value = '0';
 };
 
-Rails.delegate(document, '#batch_checkbox_all', 'change', ({ target }) => {
+on('change', '#batch_checkbox_all', ({ target }) => {
   if (!(target instanceof HTMLInputElement)) return;
 
   const selectAllMatchingElement = document.querySelector(
@@ -85,7 +84,7 @@ Rails.delegate(document, '#batch_checkbox_all', 'change', ({ target }) => {
   }
 });
 
-Rails.delegate(document, '.batch-table__select-all button', 'click', () => {
+on('click', '.batch-table__select-all button', () => {
   const hiddenField = document.querySelector<HTMLInputElement>(
     '#select_all_matching',
   );
@@ -113,7 +112,7 @@ Rails.delegate(document, '.batch-table__select-all button', 'click', () => {
   }
 });
 
-Rails.delegate(document, batchCheckboxClassName, 'change', () => {
+on('change', batchCheckboxClassName, () => {
   const checkAllElement = document.querySelector<HTMLInputElement>(
     'input#batch_checkbox_all',
   );
@@ -140,14 +139,9 @@ Rails.delegate(document, batchCheckboxClassName, 'change', () => {
   }
 });
 
-Rails.delegate(
-  document,
-  '.filter-subset--with-select select',
-  'change',
-  ({ target }) => {
-    if (target instanceof HTMLSelectElement) target.form?.submit();
-  },
-);
+on('change', '.filter-subset--with-select select', ({ target }) => {
+  if (target instanceof HTMLSelectElement) target.form?.submit();
+});
 
 const onDomainBlockSeverityChange = (target: HTMLSelectElement) => {
   const rejectMediaDiv = document.querySelector(
@@ -168,11 +162,11 @@ const onDomainBlockSeverityChange = (target: HTMLSelectElement) => {
   }
 };
 
-Rails.delegate(document, '#domain_block_severity', 'change', ({ target }) => {
+on('change', '#domain_block_severity', ({ target }) => {
   if (target instanceof HTMLSelectElement) onDomainBlockSeverityChange(target);
 });
 
-const onEnableBootstrapTimelineAccountsChange = (target: HTMLInputElement) => {
+function onEnableBootstrapTimelineAccountsChange(target: HTMLInputElement) {
   const bootstrapTimelineAccountsField =
     document.querySelector<HTMLInputElement>(
       '#form_admin_settings_bootstrap_timeline_accounts',
@@ -194,12 +188,11 @@ const onEnableBootstrapTimelineAccountsChange = (target: HTMLInputElement) => {
       );
     }
   }
-};
+}
 
-Rails.delegate(
-  document,
-  '#form_admin_settings_enable_bootstrap_timeline_accounts',
+on(
   'change',
+  '#form_admin_settings_enable_bootstrap_timeline_accounts',
   ({ target }) => {
     if (target instanceof HTMLInputElement)
       onEnableBootstrapTimelineAccountsChange(target);
@@ -239,11 +232,11 @@ const onChangeRegistrationMode = (target: HTMLSelectElement) => {
     });
 };
 
-const convertUTCDateTimeToLocal = (value: string) => {
+function convertUTCDateTimeToLocal(value: string) {
   const date = new Date(value + 'Z');
   const twoChars = (x: number) => x.toString().padStart(2, '0');
   return `${date.getFullYear()}-${twoChars(date.getMonth() + 1)}-${twoChars(date.getDate())}T${twoChars(date.getHours())}:${twoChars(date.getMinutes())}`;
-};
+}
 
 function convertLocalDatetimeToUTC(value: string) {
   const date = new Date(value);
@@ -251,14 +244,9 @@ function convertLocalDatetimeToUTC(value: string) {
   return fullISO8601.slice(0, fullISO8601.indexOf('T') + 6);
 }
 
-Rails.delegate(
-  document,
-  '#form_admin_settings_registrations_mode',
-  'change',
-  ({ target }) => {
-    if (target instanceof HTMLSelectElement) onChangeRegistrationMode(target);
-  },
-);
+on('change', '#form_admin_settings_registrations_mode', ({ target }) => {
+  if (target instanceof HTMLSelectElement) onChangeRegistrationMode(target);
+});
 
 async function mountReactComponent(element: Element) {
   const componentName = element.getAttribute('data-admin-component');
@@ -305,7 +293,7 @@ ready(() => {
   if (registrationMode) onChangeRegistrationMode(registrationMode);
 
   const checkAllElement = document.querySelector<HTMLInputElement>(
-    'input#batch_checkbox_all',
+    '#batch_checkbox_all',
   );
   if (checkAllElement) {
     const allCheckboxes = Array.from(
@@ -318,7 +306,7 @@ ready(() => {
   }
 
   document
-    .querySelector('a#add-instance-button')
+    .querySelector<HTMLAnchorElement>('a#add-instance-button')
     ?.addEventListener('click', (e) => {
       const domain = document.querySelector<HTMLInputElement>(
         'input[type="text"]#by_domain',
@@ -342,7 +330,7 @@ ready(() => {
       }
     });
 
-  Rails.delegate(document, 'form', 'submit', ({ target }) => {
+  on('submit', 'form', ({ target }) => {
     if (target instanceof HTMLFormElement)
       target
         .querySelectorAll<HTMLInputElement>('input[type="datetime-local"]')
diff --git a/app/javascript/entrypoints/public.tsx b/app/javascript/entrypoints/public.tsx
index dd1956446da..6e88eb87780 100644
--- a/app/javascript/entrypoints/public.tsx
+++ b/app/javascript/entrypoints/public.tsx
@@ -4,8 +4,8 @@ import { IntlMessageFormat } from 'intl-messageformat';
 import type { MessageDescriptor, PrimitiveType } from 'react-intl';
 import { defineMessages } from 'react-intl';
 
-import Rails from '@rails/ujs';
 import axios from 'axios';
+import { on } from 'delegated-events';
 import { throttle } from 'lodash';
 
 import { timeAgoString } from '../mastodon/components/relative_timestamp';
@@ -175,10 +175,9 @@ function loaded() {
       });
   }
 
-  Rails.delegate(
-    document,
-    'input#user_account_attributes_username',
+  on(
     'input',
+    'input#user_account_attributes_username',
     throttle(
       ({ target }) => {
         if (!(target instanceof HTMLInputElement)) return;
@@ -202,60 +201,47 @@ function loaded() {
     ),
   );
 
-  Rails.delegate(
-    document,
-    '#user_password,#user_password_confirmation',
-    'input',
-    () => {
-      const password = document.querySelector<HTMLInputElement>(
-        'input#user_password',
-      );
-      const confirmation = document.querySelector<HTMLInputElement>(
-        'input#user_password_confirmation',
-      );
-      if (!confirmation || !password) return;
+  on('input', '#user_password,#user_password_confirmation', () => {
+    const password = document.querySelector<HTMLInputElement>(
+      'input#user_password',
+    );
+    const confirmation = document.querySelector<HTMLInputElement>(
+      'input#user_password_confirmation',
+    );
+    if (!confirmation || !password) return;
 
-      if (
-        confirmation.value &&
-        confirmation.value.length > password.maxLength
-      ) {
-        confirmation.setCustomValidity(
-          formatMessage(messages.passwordExceedsLength),
-        );
-      } else if (password.value && password.value !== confirmation.value) {
-        confirmation.setCustomValidity(
-          formatMessage(messages.passwordDoesNotMatch),
-        );
-      } else {
-        confirmation.setCustomValidity('');
-      }
-    },
-  );
+    if (confirmation.value && confirmation.value.length > password.maxLength) {
+      confirmation.setCustomValidity(
+        formatMessage(messages.passwordExceedsLength),
+      );
+    } else if (password.value && password.value !== confirmation.value) {
+      confirmation.setCustomValidity(
+        formatMessage(messages.passwordDoesNotMatch),
+      );
+    } else {
+      confirmation.setCustomValidity('');
+    }
+  });
 }
 
-Rails.delegate(
-  document,
-  '#edit_profile input[type=file]',
-  'change',
-  ({ target }) => {
-    if (!(target instanceof HTMLInputElement)) return;
+on('change', '#edit_profile input[type=file]', ({ target }) => {
+  if (!(target instanceof HTMLInputElement)) return;
 
-    const avatar = document.querySelector<HTMLImageElement>(
-      `img#${target.id}-preview`,
-    );
+  const avatar = document.querySelector<HTMLImageElement>(
+    `img#${target.id}-preview`,
+  );
 
-    if (!avatar) return;
+  if (!avatar) return;
 
-    let file: File | undefined;
-    if (target.files) file = target.files[0];
+  let file: File | undefined;
+  if (target.files) file = target.files[0];
 
-    const url = file ? URL.createObjectURL(file) : avatar.dataset.originalSrc;
+  const url = file ? URL.createObjectURL(file) : avatar.dataset.originalSrc;
 
-    if (url) avatar.src = url;
-  },
-);
+  if (url) avatar.src = url;
+});
 
-Rails.delegate(document, '.input-copy input', 'click', ({ target }) => {
+on('click', '.input-copy input', ({ target }) => {
   if (!(target instanceof HTMLInputElement)) return;
 
   target.focus();
@@ -263,7 +249,7 @@ Rails.delegate(document, '.input-copy input', 'click', ({ target }) => {
   target.setSelectionRange(0, target.value.length);
 });
 
-Rails.delegate(document, '.input-copy button', 'click', ({ target }) => {
+on('click', '.input-copy button', ({ target }) => {
   if (!(target instanceof HTMLButtonElement)) return;
 
   const input = target.parentNode?.querySelector<HTMLInputElement>(
@@ -312,22 +298,22 @@ const toggleSidebar = () => {
   sidebar.classList.toggle('visible');
 };
 
-Rails.delegate(document, '.sidebar__toggle__icon', 'click', () => {
+on('click', '.sidebar__toggle__icon', () => {
   toggleSidebar();
 });
 
-Rails.delegate(document, '.sidebar__toggle__icon', 'keydown', (e) => {
+on('keydown', '.sidebar__toggle__icon', (e) => {
   if (e.key === ' ' || e.key === 'Enter') {
     e.preventDefault();
     toggleSidebar();
   }
 });
 
-Rails.delegate(document, 'img.custom-emoji', 'mouseover', ({ target }) => {
+on('mouseover', 'img.custom-emoji', ({ target }) => {
   if (target instanceof HTMLImageElement && target.dataset.original)
     target.src = target.dataset.original;
 });
-Rails.delegate(document, 'img.custom-emoji', 'mouseout', ({ target }) => {
+on('mouseout', 'img.custom-emoji', ({ target }) => {
   if (target instanceof HTMLImageElement && target.dataset.static)
     target.src = target.dataset.static;
 });
@@ -376,22 +362,17 @@ const setInputHint = (
   }
 };
 
-Rails.delegate(
-  document,
-  '#account_statuses_cleanup_policy_enabled',
-  'change',
-  ({ target }) => {
-    if (!(target instanceof HTMLInputElement) || !target.form) return;
+on('change', '#account_statuses_cleanup_policy_enabled', ({ target }) => {
+  if (!(target instanceof HTMLInputElement) || !target.form) return;
 
-    target.form
-      .querySelectorAll<
-        HTMLInputElement | HTMLSelectElement
-      >('input:not([type=hidden], #account_statuses_cleanup_policy_enabled), select')
-      .forEach((input) => {
-        setInputDisabled(input, !target.checked);
-      });
-  },
-);
+  target.form
+    .querySelectorAll<
+      HTMLInputElement | HTMLSelectElement
+    >('input:not([type=hidden], #account_statuses_cleanup_policy_enabled), select')
+    .forEach((input) => {
+      setInputDisabled(input, !target.checked);
+    });
+});
 
 const updateDefaultQuotePrivacyFromPrivacy = (
   privacySelect: EventTarget | null,
@@ -414,18 +395,13 @@ const updateDefaultQuotePrivacyFromPrivacy = (
   }
 };
 
-Rails.delegate(
-  document,
-  '#user_settings_attributes_default_privacy',
-  'change',
-  ({ target }) => {
-    updateDefaultQuotePrivacyFromPrivacy(target);
-  },
-);
+on('change', '#user_settings_attributes_default_privacy', ({ target }) => {
+  updateDefaultQuotePrivacyFromPrivacy(target);
+});
 
 // Empty the honeypot fields in JS in case something like an extension
 // automatically filled them.
-Rails.delegate(document, '#registration_new_user,#new_user', 'submit', () => {
+on('submit', '#registration_new_user,#new_user', () => {
   [
     'user_website',
     'user_confirm_password',
@@ -439,7 +415,7 @@ Rails.delegate(document, '#registration_new_user,#new_user', 'submit', () => {
   });
 });
 
-Rails.delegate(document, '.rules-list button', 'click', ({ target }) => {
+on('click', '.rules-list button', ({ target }) => {
   if (!(target instanceof HTMLElement)) {
     return;
   }
diff --git a/package.json b/package.json
index f502d015a12..c5fa667d527 100644
--- a/package.json
+++ b/package.json
@@ -66,6 +66,7 @@
     "core-js": "^3.30.2",
     "cross-env": "^10.0.0",
     "debug": "^4.4.1",
+    "delegated-events": "^1.1.2",
     "detect-passive-events": "^2.0.3",
     "emoji-mart": "npm:emoji-mart-lazyload@latest",
     "emojibase": "^16.0.0",
diff --git a/yarn.lock b/yarn.lock
index fd9db032c2d..9d765b86694 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2764,6 +2764,7 @@ __metadata:
     core-js: "npm:^3.30.2"
     cross-env: "npm:^10.0.0"
     debug: "npm:^4.4.1"
+    delegated-events: "npm:^1.1.2"
     detect-passive-events: "npm:^2.0.3"
     emoji-mart: "npm:emoji-mart-lazyload@latest"
     emojibase: "npm:^16.0.0"
@@ -6388,6 +6389,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"delegated-events@npm:^1.1.2":
+  version: 1.1.2
+  resolution: "delegated-events@npm:1.1.2"
+  dependencies:
+    selector-set: "npm:^1.1.5"
+  checksum: 10c0/b295a6d6c6cef4b9312bfd4132ac3a1255f3c2fadf3692a04cf7ddf8f0d472bfce9de06323faa75e922d20e5674d45022e1a5378b8500cd7d573ffa0cf7ca602
+  languageName: node
+  linkType: hard
+
 "denque@npm:^2.1.0":
   version: 2.1.0
   resolution: "denque@npm:2.1.0"
@@ -12153,6 +12163,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"selector-set@npm:^1.1.5":
+  version: 1.1.5
+  resolution: "selector-set@npm:1.1.5"
+  checksum: 10c0/4835907846eb8496c2cc4e5ce48355cce1ef3b55e82789542739dcdc71ebfb756e133d1d7f7ec9f0cf4b1c11fc0375a1d3b99a482d9c973493ca85a6d4b012ab
+  languageName: node
+  linkType: hard
+
 "semver@npm:^5.6.0":
   version: 5.7.2
   resolution: "semver@npm:5.7.2"