diff --git a/packages/pl-fe/src/actions/pl-fe.ts b/packages/pl-fe/src/actions/pl-fe.ts
index 80b0ea886..6a81db1d9 100644
--- a/packages/pl-fe/src/actions/pl-fe.ts
+++ b/packages/pl-fe/src/actions/pl-fe.ts
@@ -1,7 +1,8 @@
 import { createSelector } from 'reselect';
+import * as v from 'valibot';
 
 import { getHost } from 'pl-fe/actions/instance';
-import { normalizePlFeConfig } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
+import { plFeConfigSchema } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 import KVStore from 'pl-fe/storage/kv-store';
 import { useSettingsStore } from 'pl-fe/stores/settings';
 
@@ -17,10 +18,8 @@ const PLFE_CONFIG_REMEMBER_SUCCESS = 'PLFE_CONFIG_REMEMBER_SUCCESS' as const;
 
 const getPlFeConfig = createSelector([
   (state: RootState) => state.plfe,
-], (plfe) => {
-  // Do some additional normalization with the state
-  return normalizePlFeConfig(plfe);
-});
+// Do some additional normalization with the state
+], (plfe) => v.parse(plFeConfigSchema, plfe));
 
 const rememberPlFeConfig = (host: string | null) =>
   (dispatch: AppDispatch) => {
diff --git a/packages/pl-fe/src/actions/timelines.ts b/packages/pl-fe/src/actions/timelines.ts
index 287c3425f..dfc5f3a12 100644
--- a/packages/pl-fe/src/actions/timelines.ts
+++ b/packages/pl-fe/src/actions/timelines.ts
@@ -28,7 +28,7 @@ const processTimelineUpdate = (timeline: string, status: BaseStatus) =>
   (dispatch: AppDispatch, getState: () => RootState) => {
     const me = getState().me;
     const ownStatus = status.account?.id === me;
-    const hasPendingStatuses = !getState().pending_statuses.isEmpty();
+    const hasPendingStatuses = !!getState().pending_statuses.length;
 
     const columnSettings = useSettingsStore.getState().settings.timelines[timeline];
     const shouldSkipQueue = shouldFilter({
diff --git a/packages/pl-fe/src/components/navlinks.tsx b/packages/pl-fe/src/components/navlinks.tsx
index ee84fd150..8a49c5ef0 100644
--- a/packages/pl-fe/src/components/navlinks.tsx
+++ b/packages/pl-fe/src/components/navlinks.tsx
@@ -16,7 +16,7 @@ const Navlinks: React.FC<INavlinks> = ({ type }) => {
   return (
     <footer className='relative mx-auto mt-auto max-w-7xl py-8'>
       <div className='flex flex-wrap justify-center'>
-        {navlinks.get(type)?.map((link, idx) => {
+        {navlinks[type]?.map((link, idx) => {
           const url = link.url;
           const isExternal = url.startsWith('http');
           const Comp = (isExternal ? 'a' : Link) as 'a';
@@ -26,7 +26,7 @@ const Navlinks: React.FC<INavlinks> = ({ type }) => {
             <div key={idx} className='px-5 py-2'>
               <Comp {...compProps} className='text-primary-600 hover:underline dark:text-primary-400'>
                 <Text tag='span' theme='inherit' size='sm'>
-                  {(link.getIn(['titleLocales', locale]) || link.get('title')) as string}
+                  {link.titleLocales[locale] || link.title}
                 </Text>
               </Comp>
             </div>
diff --git a/packages/pl-fe/src/components/site-error-boundary.tsx b/packages/pl-fe/src/components/site-error-boundary.tsx
index 2b2ce2241..cd8ab2428 100644
--- a/packages/pl-fe/src/components/site-error-boundary.tsx
+++ b/packages/pl-fe/src/components/site-error-boundary.tsx
@@ -158,20 +158,20 @@ const SiteErrorBoundary: React.FC<ISiteErrorBoundary> = ({ children }) => {
 
       <footer className='mx-auto w-full max-w-7xl shrink-0 px-4 sm:px-6 lg:px-8'>
         <HStack justifyContent='center' space={4} element='nav'>
-          {links.get('status') && (
-            <SiteErrorBoundaryLink href={links.get('status')!}>
+          {links.status && (
+            <SiteErrorBoundaryLink href={links.status}>
               <FormattedMessage id='alert.unexpected.links.status' defaultMessage='Status' />
             </SiteErrorBoundaryLink>
           )}
 
-          {links.get('help') && (
-            <SiteErrorBoundaryLink href={links.get('help')!}>
+          {links.help && (
+            <SiteErrorBoundaryLink href={links.help}>
               <FormattedMessage id='alert.unexpected.links.help' defaultMessage='Help Center' />
             </SiteErrorBoundaryLink>
           )}
 
-          {links.get('support') && (
-            <SiteErrorBoundaryLink href={links.get('support')!}>
+          {links.support && (
+            <SiteErrorBoundaryLink href={links.support}>
               <FormattedMessage id='alert.unexpected.links.support' defaultMessage='Support' />
             </SiteErrorBoundaryLink>
           )}
diff --git a/packages/pl-fe/src/features/about/index.tsx b/packages/pl-fe/src/features/about/index.tsx
index fe0e53e2c..71e3fd66c 100644
--- a/packages/pl-fe/src/features/about/index.tsx
+++ b/packages/pl-fe/src/features/about/index.tsx
@@ -24,9 +24,9 @@ const AboutPage: React.FC = () => {
 
   const { aboutPages } = plFeConfig;
 
-  const page = aboutPages.get(slug || 'about');
-  const defaultLocale = page?.get('default') as string | undefined;
-  const pageLocales = page?.get('locales', []) as string[];
+  const page = aboutPages[slug || 'about'];
+  const defaultLocale = page?.defaultLocale;
+  const pageLocales = page?.locales || [];
 
   useEffect(() => {
     const fetchLocale = Boolean(page && locale !== defaultLocale && pageLocales.includes(locale));
diff --git a/packages/pl-fe/src/features/crypto-donate/components/crypto-donate-panel.tsx b/packages/pl-fe/src/features/crypto-donate/components/crypto-donate-panel.tsx
index 3ecab89ad..7fcf66d3e 100644
--- a/packages/pl-fe/src/features/crypto-donate/components/crypto-donate-panel.tsx
+++ b/packages/pl-fe/src/features/crypto-donate/components/crypto-donate-panel.tsx
@@ -22,9 +22,9 @@ const CryptoDonatePanel: React.FC<ICryptoDonatePanel> = ({ limit = 3 }): JSX.Ele
   const history = useHistory();
   const instance = useInstance();
 
-  const addresses = usePlFeConfig().get('cryptoAddresses');
+  const addresses = usePlFeConfig().cryptoAddresses;
 
-  if (limit === 0 || addresses.size === 0) {
+  if (limit === 0 || addresses.length === 0) {
     return null;
   }
 
@@ -36,7 +36,7 @@ const CryptoDonatePanel: React.FC<ICryptoDonatePanel> = ({ limit = 3 }): JSX.Ele
     <Widget
       title={<FormattedMessage id='crypto_donate_panel.heading' defaultMessage='Donate Cryptocurrency' />}
       onActionClick={handleAction}
-      actionTitle={intl.formatMessage(messages.actionTitle, { count: addresses.size })}
+      actionTitle={intl.formatMessage(messages.actionTitle, { count: addresses.length })}
     >
       <Text>
         <FormattedMessage
diff --git a/packages/pl-fe/src/features/crypto-donate/components/site-wallet.tsx b/packages/pl-fe/src/features/crypto-donate/components/site-wallet.tsx
index f79e1ded7..880f8e6dd 100644
--- a/packages/pl-fe/src/features/crypto-donate/components/site-wallet.tsx
+++ b/packages/pl-fe/src/features/crypto-donate/components/site-wallet.tsx
@@ -11,7 +11,7 @@ interface ISiteWallet {
 
 const SiteWallet: React.FC<ISiteWallet> = ({ limit }): JSX.Element => {
   const { cryptoAddresses } = usePlFeConfig();
-  const addresses = typeof limit === 'number' ? cryptoAddresses.take(limit) : cryptoAddresses;
+  const addresses = typeof limit === 'number' ? cryptoAddresses.slice(0, limit) : cryptoAddresses;
 
   return (
     <Stack space={4}>
diff --git a/packages/pl-fe/src/features/pl-fe-config/components/crypto-address-input.tsx b/packages/pl-fe/src/features/pl-fe-config/components/crypto-address-input.tsx
index 83bc8ea3e..9a6f6beba 100644
--- a/packages/pl-fe/src/features/pl-fe-config/components/crypto-address-input.tsx
+++ b/packages/pl-fe/src/features/pl-fe-config/components/crypto-address-input.tsx
@@ -5,7 +5,7 @@ import HStack from 'pl-fe/components/ui/hstack';
 import Input from 'pl-fe/components/ui/input';
 
 import type { StreamfieldComponent } from 'pl-fe/components/ui/streamfield';
-import type { CryptoAddress } from 'pl-fe/types/pl-fe';
+import type { CryptoAddress } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 
 const messages = defineMessages({
   ticker: { id: 'plfe_config.crypto_address.meta_fields.ticker_placeholder', defaultMessage: 'Ticker' },
diff --git a/packages/pl-fe/src/features/pl-fe-config/components/footer-link-input.tsx b/packages/pl-fe/src/features/pl-fe-config/components/footer-link-input.tsx
index 587573732..d13d6ffd6 100644
--- a/packages/pl-fe/src/features/pl-fe-config/components/footer-link-input.tsx
+++ b/packages/pl-fe/src/features/pl-fe-config/components/footer-link-input.tsx
@@ -5,7 +5,7 @@ import HStack from 'pl-fe/components/ui/hstack';
 import Input from 'pl-fe/components/ui/input';
 
 import type { StreamfieldComponent } from 'pl-fe/components/ui/streamfield';
-import type { FooterItem } from 'pl-fe/types/pl-fe';
+import type { FooterItem } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 
 const messages = defineMessages({
   label: { id: 'plfe_config.home_footer.meta_fields.label_placeholder', defaultMessage: 'Label' },
diff --git a/packages/pl-fe/src/features/pl-fe-config/components/promo-panel-input.tsx b/packages/pl-fe/src/features/pl-fe-config/components/promo-panel-input.tsx
index de5284e9b..162117446 100644
--- a/packages/pl-fe/src/features/pl-fe-config/components/promo-panel-input.tsx
+++ b/packages/pl-fe/src/features/pl-fe-config/components/promo-panel-input.tsx
@@ -7,7 +7,7 @@ import Input from 'pl-fe/components/ui/input';
 import IconPicker from './icon-picker';
 
 import type { StreamfieldComponent } from 'pl-fe/components/ui/streamfield';
-import type { PromoPanelItem } from 'pl-fe/types/pl-fe';
+import type { PromoPanelItem } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 
 const messages = defineMessages({
   icon: { id: 'plfe_config.promo_panel.meta_fields.icon_placeholder', defaultMessage: 'Icon' },
diff --git a/packages/pl-fe/src/features/pl-fe-config/components/site-preview.tsx b/packages/pl-fe/src/features/pl-fe-config/components/site-preview.tsx
index 094ed113b..a3881e058 100644
--- a/packages/pl-fe/src/features/pl-fe-config/components/site-preview.tsx
+++ b/packages/pl-fe/src/features/pl-fe-config/components/site-preview.tsx
@@ -1,10 +1,11 @@
 import clsx from 'clsx';
 import React, { useMemo } from 'react';
 import { FormattedMessage } from 'react-intl';
+import * as v from 'valibot';
 
 import BackgroundShapes from 'pl-fe/features/ui/components/background-shapes';
 import { useSystemTheme } from 'pl-fe/hooks/use-system-theme';
-import { normalizePlFeConfig } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
+import { plFeConfigSchema } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 import { useSettingsStore } from 'pl-fe/stores/settings';
 import { generateThemeCss } from 'pl-fe/utils/theme';
 
@@ -15,7 +16,7 @@ interface ISitePreview {
 
 /** Renders a preview of the website's style with the configuration applied. */
 const SitePreview: React.FC<ISitePreview> = ({ plFe }) => {
-  const plFeConfig = useMemo(() => normalizePlFeConfig(plFe), [plFe]);
+  const plFeConfig = useMemo(() => v.parse(plFeConfigSchema, plFe), [plFe]);
   const { defaultSettings } = useSettingsStore();
 
   const userTheme = defaultSettings.themeMode;
diff --git a/packages/pl-fe/src/features/pl-fe-config/index.tsx b/packages/pl-fe/src/features/pl-fe-config/index.tsx
index 775f9fac6..25f583318 100644
--- a/packages/pl-fe/src/features/pl-fe-config/index.tsx
+++ b/packages/pl-fe/src/features/pl-fe-config/index.tsx
@@ -1,6 +1,7 @@
 import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
 import React, { useState, useEffect, useMemo } from 'react';
 import { defineMessages, useIntl, FormattedMessage } from 'react-intl';
+import * as v from 'valibot';
 
 import { updatePlFeConfig } from 'pl-fe/actions/admin';
 import { uploadMedia } from 'pl-fe/actions/media';
@@ -21,7 +22,7 @@ import ThemeSelector from 'pl-fe/features/ui/components/theme-selector';
 import { useAppDispatch } from 'pl-fe/hooks/use-app-dispatch';
 import { useAppSelector } from 'pl-fe/hooks/use-app-selector';
 import { useFeatures } from 'pl-fe/hooks/use-features';
-import { normalizePlFeConfig } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
+import { plFeConfigSchema } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 import toast from 'pl-fe/toast';
 
 import CryptoAddressInput from './components/crypto-address-input';
@@ -34,13 +35,11 @@ const messages = defineMessages({
   saved: { id: 'plfe_config.saved', defaultMessage: 'pl-fe config saved!' },
   copyrightFooterLabel: { id: 'plfe_config.copyright_footer.meta_fields.label_placeholder', defaultMessage: 'Copyright footer' },
   cryptoDonatePanelLimitLabel: { id: 'plfe_config.crypto_donate_panel_limit.meta_fields.limit_placeholder', defaultMessage: 'Number of items to display in the crypto homepage widget' },
-  customCssLabel: { id: 'plfe_config.custom_css.meta_fields.url_placeholder', defaultMessage: 'URL' },
   rawJSONLabel: { id: 'plfe_config.raw_json_label', defaultMessage: 'Advanced: Edit raw JSON data' },
   rawJSONHint: { id: 'plfe_config.raw_json_hint', defaultMessage: 'Edit the settings data directly. Changes made directly to the JSON file will override the form fields above. Click "Save" to apply your changes.' },
   rawJSONInvalid: { id: 'plfe_config.raw_json_invalid', defaultMessage: 'is invalid' },
   displayFqnLabel: { id: 'plfe_config.display_fqn_label', defaultMessage: 'Display domain (eg @user@domain) for local accounts.' },
   greentextLabel: { id: 'plfe_config.greentext_label', defaultMessage: 'Enable greentext support' },
-  promoPanelIconsLink: { id: 'plfe_config.hints.promo_panel_icons.link', defaultMessage: 'pl-fe Icons List' },
   authenticatedProfileLabel: { id: 'plfe_config.authenticated_profile_label', defaultMessage: 'Profiles require authentication' },
   authenticatedProfileHint: { id: 'plfe_config.authenticated_profile_hint', defaultMessage: 'Users must be logged-in to view replies and media on user profiles.' },
   displayCtaLabel: { id: 'plfe_config.cta_label', defaultMessage: 'Display call to action panels if not authenticated' },
@@ -81,7 +80,7 @@ const PlFeConfig: React.FC = () => {
   const [rawJSON, setRawJSON] = useState<string>(JSON.stringify(initialData, null, 2));
   const [jsonValid, setJsonValid] = useState(true);
 
-  const plFe = useMemo(() => normalizePlFeConfig(data), [data]);
+  const plFe = useMemo(() => v.parse(plFeConfigSchema, data), [data]);
 
   const setConfig = (path: ConfigPath, value: any) => {
     const newData = data.setIn(path, value);
@@ -284,7 +283,7 @@ const PlFeConfig: React.FC = () => {
             label={<FormattedMessage id='plfe_config.fields.promo_panel_fields_label' defaultMessage='Promo panel items' />}
             hint={<FormattedMessage id='plfe_config.hints.promo_panel_fields' defaultMessage='You can have custom defined links displayed on the right panel of the timelines page.' />}
             component={PromoPanelInput}
-            values={plFe.promoPanel.items.toArray()}
+            values={plFe.promoPanel.items}
             onChange={handleStreamItemChange(['promoPanel', 'items'])}
             onAddItem={addStreamItem(['promoPanel', 'items'], templates.promoPanel)}
             onRemoveItem={deleteStreamItem(['promoPanel', 'items'])}
@@ -295,7 +294,7 @@ const PlFeConfig: React.FC = () => {
             label={<FormattedMessage id='plfe_config.fields.home_footer_fields_label' defaultMessage='Home footer items' />}
             hint={<FormattedMessage id='plfe_config.hints.home_footer_fields' defaultMessage='You can have custom defined links displayed on the footer of your static pages' />}
             component={FooterLinkInput}
-            values={plFe.navlinks.get('homeFooter')?.toArray() || []}
+            values={plFe.navlinks.homeFooter || []}
             onChange={handleStreamItemChange(['navlinks', 'homeFooter'])}
             onAddItem={addStreamItem(['navlinks', 'homeFooter'], templates.footerItem)}
             onRemoveItem={deleteStreamItem(['navlinks', 'homeFooter'])}
@@ -345,7 +344,7 @@ const PlFeConfig: React.FC = () => {
             label={<FormattedMessage id='plfe_config.fields.crypto_addresses_label' defaultMessage='Cryptocurrency addresses' />}
             hint={<FormattedMessage id='plfe_config.hints.crypto_addresses' defaultMessage='Add cryptocurrency addresses so users of your site can donate to you. Order matters, and you must use lowercase ticker values.' />}
             component={CryptoAddressInput}
-            values={plFe.cryptoAddresses.toArray()}
+            values={plFe.cryptoAddresses}
             onChange={handleStreamItemChange(['cryptoAddresses'])}
             onAddItem={addStreamItem(['cryptoAddresses'], templates.cryptoAddress)}
             onRemoveItem={deleteStreamItem(['cryptoAddresses'])}
@@ -358,7 +357,7 @@ const PlFeConfig: React.FC = () => {
               min={0}
               pattern='[0-9]+'
               placeholder={intl.formatMessage(messages.cryptoDonatePanelLimitLabel)}
-              value={plFe.cryptoDonatePanel.get('limit')}
+              value={plFe.cryptoDonatePanel.limit}
               onChange={handleChange(['cryptoDonatePanel', 'limit'], (e) => Number(e.target.value))}
             />
           </FormGroup>
diff --git a/packages/pl-fe/src/features/theme-editor/index.tsx b/packages/pl-fe/src/features/theme-editor/index.tsx
index 9361618f2..ef8e1eaef 100644
--- a/packages/pl-fe/src/features/theme-editor/index.tsx
+++ b/packages/pl-fe/src/features/theme-editor/index.tsx
@@ -1,5 +1,6 @@
 import React, { useRef, useState } from 'react';
 import { defineMessages, FormattedMessage, useIntl } from 'react-intl';
+import * as v from 'valibot';
 
 import { updatePlFeConfig } from 'pl-fe/actions/admin';
 import { getHost } from 'pl-fe/actions/instance';
@@ -14,7 +15,7 @@ import ColorPicker from 'pl-fe/features/pl-fe-config/components/color-picker';
 import { useAppDispatch } from 'pl-fe/hooks/use-app-dispatch';
 import { useAppSelector } from 'pl-fe/hooks/use-app-selector';
 import { usePlFeConfig } from 'pl-fe/hooks/use-pl-fe-config';
-import { normalizePlFeConfig } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
+import { plFeConfigSchema } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 import toast from 'pl-fe/toast';
 import { download } from 'pl-fe/utils/download';
 
@@ -53,7 +54,7 @@ const ThemeEditor: React.FC<IThemeEditor> = () => {
   const host = useAppSelector(state => getHost(state));
   const rawConfig = useAppSelector(state => state.plfe);
 
-  const [colors, setColors] = useState(plFe.colors.toJS() as any);
+  const [colors, setColors] = useState(plFe.colors);
   const [submitting, setSubmitting] = useState(false);
   const [resetKey, setResetKey] = useState(crypto.randomUUID());
 
@@ -82,16 +83,16 @@ const ThemeEditor: React.FC<IThemeEditor> = () => {
   };
 
   const resetTheme = () => {
-    setTheme(plFe.colors.toJS() as any);
+    setTheme(plFe.colors);
   };
 
   const updateTheme = async () => {
-    const params = rawConfig.set('colors', colors).toJS();
+    const params = { ...rawConfig, colors };
     await dispatch(updatePlFeConfig(params));
   };
 
   const restoreDefaultTheme = () => {
-    const colors = normalizePlFeConfig({ brandColor: '#d80482' }).colors.toJS();
+    const colors = v.parse(plFeConfigSchema, { brandColor: '#d80482' }).colors;
     setTheme(colors);
   };
 
@@ -110,7 +111,7 @@ const ThemeEditor: React.FC<IThemeEditor> = () => {
     if (file) {
       const text = await file.text();
       const json = JSON.parse(text);
-      const colors = normalizePlFeConfig({ colors: json }).colors.toJS();
+      const colors = v.parse(plFeConfigSchema, { colors: json }).colors;
 
       setTheme(colors);
       toast.success(intl.formatMessage(messages.importSuccess));
@@ -243,13 +244,13 @@ const ThemeEditor: React.FC<IThemeEditor> = () => {
 
 interface IPaletteListItem {
   label: React.ReactNode;
-  palette: ColorGroup;
+  palette: ColorGroup | string;
   onChange: (palette: ColorGroup) => void;
   resetKey?: string;
 }
 
 /** Palette editor inside a ListItem. */
-const PaletteListItem: React.FC<IPaletteListItem> = ({ label, palette, onChange, resetKey }) => (
+const PaletteListItem: React.FC<IPaletteListItem> = ({ label, palette, onChange, resetKey }) => typeof palette === 'string' ? null : (
   <ListItem label={<div className='w-20'>{label}</div>}>
     <Palette palette={palette} onChange={onChange} resetKey={resetKey} />
   </ListItem>
@@ -257,12 +258,14 @@ const PaletteListItem: React.FC<IPaletteListItem> = ({ label, palette, onChange,
 
 interface IColorListItem {
   label: React.ReactNode;
-  value: string;
+  value: string | Record<string, string>;
   onChange: (hex: string) => void;
 }
 
 /** Single-color picker. */
 const ColorListItem: React.FC<IColorListItem> = ({ label, value, onChange }) => {
+  if (typeof value !== 'string') return null;
+
   const handleChange: ColorChangeHandler = (color, _e) => {
     onChange(color.hex);
   };
diff --git a/packages/pl-fe/src/features/ui/components/modals/report-modal/steps/confirmation-step.tsx b/packages/pl-fe/src/features/ui/components/modals/report-modal/steps/confirmation-step.tsx
index 3d4f8b9cf..bd78fe326 100644
--- a/packages/pl-fe/src/features/ui/components/modals/report-modal/steps/confirmation-step.tsx
+++ b/packages/pl-fe/src/features/ui/components/modals/report-modal/steps/confirmation-step.tsx
@@ -29,7 +29,7 @@ const renderTermsOfServiceLink = (href: string) => (
 
 const ConfirmationStep: React.FC = () => {
   const intl = useIntl();
-  const links = useAppSelector((state) => getPlFeConfig(state).get('links') as any);
+  const links = useAppSelector((state) => getPlFeConfig(state).links);
 
   const entity = intl.formatMessage(messages.accountEntity);
 
@@ -42,8 +42,8 @@ const ConfirmationStep: React.FC = () => {
       <Text>
         {intl.formatMessage(messages.content, {
           entity,
-          link: links.get('termsOfService') ?
-            renderTermsOfServiceLink(links.get('termsOfService')) :
+          link: links.termsOfService ?
+            renderTermsOfServiceLink(links.termsOfService) :
             termsOfServiceText,
         })}
       </Text>
diff --git a/packages/pl-fe/src/features/ui/components/panels/promo-panel.tsx b/packages/pl-fe/src/features/ui/components/panels/promo-panel.tsx
index 5f4647b21..80eef9584 100644
--- a/packages/pl-fe/src/features/ui/components/panels/promo-panel.tsx
+++ b/packages/pl-fe/src/features/ui/components/panels/promo-panel.tsx
@@ -13,9 +13,9 @@ const PromoPanel: React.FC = () => {
   const { promoPanel } = usePlFeConfig();
   const { locale } = useSettings();
 
-  const promoItems = promoPanel.get('items');
+  const promoItems = promoPanel.items;
 
-  if (!promoItems || promoItems.isEmpty()) return null;
+  if (!promoItems || !promoItems.length) return null;
 
   return (
     <Widget title={instance.title}>
@@ -27,7 +27,7 @@ const PromoPanel: React.FC = () => {
             label={
               <HStack alignItems='center' space={2}>
                 <ForkAwesomeIcon id={item.icon} className='flex-none text-lg' fixedWidth />
-                <span>{item.textLocales.get(locale) || item.text}</span>
+                <span>{item.textLocales[locale] || item.text}</span>
               </HStack>
             }
             size='sm'
diff --git a/packages/pl-fe/src/features/ui/components/pending-status.tsx b/packages/pl-fe/src/features/ui/components/pending-status.tsx
index 44c56f4b6..c02aa92f7 100644
--- a/packages/pl-fe/src/features/ui/components/pending-status.tsx
+++ b/packages/pl-fe/src/features/ui/components/pending-status.tsx
@@ -47,7 +47,7 @@ const PendingStatusMedia: React.FC<IPendingStatusMedia> = ({ status }) => {
 
 const PendingStatus: React.FC<IPendingStatus> = ({ idempotencyKey, className, muted, variant = 'rounded' }) => {
   const status = useAppSelector((state) => {
-    const pendingStatus = state.pending_statuses.get(idempotencyKey);
+    const pendingStatus = state.pending_statuses[idempotencyKey];
     return pendingStatus ? buildStatus(state, pendingStatus, idempotencyKey) : null;
   });
 
diff --git a/packages/pl-fe/src/features/ui/index.tsx b/packages/pl-fe/src/features/ui/index.tsx
index 8dcd24879..05b8bc729 100644
--- a/packages/pl-fe/src/features/ui/index.tsx
+++ b/packages/pl-fe/src/features/ui/index.tsx
@@ -159,7 +159,7 @@ const SwitchingColumnsArea: React.FC<ISwitchingColumnsArea> = ({ children }) =>
   const standalone = useAppSelector(isStandalone);
 
   const { authenticatedProfile, cryptoAddresses } = usePlFeConfig();
-  const hasCrypto = cryptoAddresses.size > 0;
+  const hasCrypto = cryptoAddresses.length > 0;
 
   // NOTE: Mastodon and Pleroma route some basenames to the backend.
   // When adding new routes, use a basename that does NOT conflict
diff --git a/packages/pl-fe/src/features/ui/util/pending-status-builder.ts b/packages/pl-fe/src/features/ui/util/pending-status-builder.ts
index 0c3cbc325..f33f57206 100644
--- a/packages/pl-fe/src/features/ui/util/pending-status-builder.ts
+++ b/packages/pl-fe/src/features/ui/util/pending-status-builder.ts
@@ -1,4 +1,4 @@
-import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
+import { create } from 'mutative';
 import { statusSchema } from 'pl-api';
 import * as v from 'valibot';
 
@@ -12,17 +12,18 @@ const getAccount = makeGetAccount();
 
 const buildMentions = (pendingStatus: PendingStatus) => {
   if (pendingStatus.in_reply_to_id) {
-    return ImmutableList(pendingStatus.to || []).map(acct => ImmutableMap({ acct }));
+    return (pendingStatus.to || []).map(acct => ({ acct }));
   } else {
-    return ImmutableList();
+    return [];
   }
 };
 
 const buildPoll = (pendingStatus: PendingStatus) => {
-  if (pendingStatus.hasIn(['poll', 'options'])) {
-    return pendingStatus.poll!.update('options', (options: ImmutableMap<string, any>) =>
-      options.map((title: string) => ImmutableMap({ title })),
-    );
+  if (pendingStatus.poll?.options) {
+    return create(pendingStatus.poll, (draft) => {
+      // @ts-ignore
+      draft.options = draft.options.map((title) => ({ title }));
+    });
   } else {
     return null;
   }
@@ -39,7 +40,7 @@ const buildStatus = (state: RootState, pendingStatus: PendingStatus, idempotency
     id: `末pending-${idempotencyKey}`,
     in_reply_to_account_id: state.statuses[inReplyToId || '']?.account_id || null,
     in_reply_to_id: inReplyToId,
-    media_attachments: (pendingStatus.media_ids || ImmutableList()).map((id: string) => ({ id })),
+    media_attachments: (pendingStatus.media_ids || []).map((id: string) => ({ id })),
     mentions: buildMentions(pendingStatus),
     poll: buildPoll(pendingStatus),
     quote: pendingStatus.quote_id ? state.statuses[pendingStatus.quote_id] : null,
diff --git a/packages/pl-fe/src/hooks/use-pl-fe-config.ts b/packages/pl-fe/src/hooks/use-pl-fe-config.ts
index 529f4c514..0f468343d 100644
--- a/packages/pl-fe/src/hooks/use-pl-fe-config.ts
+++ b/packages/pl-fe/src/hooks/use-pl-fe-config.ts
@@ -2,9 +2,7 @@ import { getPlFeConfig } from 'pl-fe/actions/pl-fe';
 
 import { useAppSelector } from './use-app-selector';
 
-import type { PlFeConfig } from 'pl-fe/types/pl-fe';
-
 /** Get the pl-fe config from the store */
-const usePlFeConfig = (): PlFeConfig => useAppSelector((state) => getPlFeConfig(state));
+const usePlFeConfig = () => useAppSelector((state) => getPlFeConfig(state));
 
 export { usePlFeConfig };
diff --git a/packages/pl-fe/src/init/pl-fe-head.tsx b/packages/pl-fe/src/init/pl-fe-head.tsx
index 5f79f9c14..642f964d4 100644
--- a/packages/pl-fe/src/init/pl-fe-head.tsx
+++ b/packages/pl-fe/src/init/pl-fe-head.tsx
@@ -1,11 +1,12 @@
 import clsx from 'clsx';
 import React, { useEffect } from 'react';
+import * as v from 'valibot';
 
 import { useLocale } from 'pl-fe/hooks/use-locale';
 import { usePlFeConfig } from 'pl-fe/hooks/use-pl-fe-config';
 import { useSettings } from 'pl-fe/hooks/use-settings';
 import { useTheme } from 'pl-fe/hooks/use-theme';
-import { normalizePlFeConfig } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
+import { plFeConfigSchema } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 import { startSentry } from 'pl-fe/sentry';
 import { useModalsStore } from 'pl-fe/stores/modals';
 import { generateThemeCss } from 'pl-fe/utils/theme';
@@ -21,7 +22,7 @@ const PlFeHead = () => {
 
   const withModals = useModalsStore().modals.length > 0;
 
-  const themeCss = generateThemeCss(demo ? normalizePlFeConfig({ brandColor: '#d80482' }) : plFeConfig);
+  const themeCss = generateThemeCss(demo ? v.parse(plFeConfigSchema, { brandColor: '#d80482' }) : plFeConfig);
   const dsn = plFeConfig.sentryDsn;
 
   const bodyClass = clsx('h-full bg-white text-base antialiased black:bg-black dark:bg-gray-800', {
diff --git a/packages/pl-fe/src/jest/test-helpers.tsx b/packages/pl-fe/src/jest/test-helpers.tsx
index 61a86b97d..336451438 100644
--- a/packages/pl-fe/src/jest/test-helpers.tsx
+++ b/packages/pl-fe/src/jest/test-helpers.tsx
@@ -2,7 +2,6 @@ import { configureMockStore } from '@jedmao/redux-mock-store';
 import { QueryClientProvider } from '@tanstack/react-query';
 import { render, RenderOptions } from '@testing-library/react';
 import { renderHook, RenderHookOptions } from '@testing-library/react-hooks';
-import { merge } from 'immutable';
 import React, { FC, ReactElement } from 'react';
 import { Toaster } from 'react-hot-toast';
 import { IntlProvider } from 'react-intl';
@@ -37,7 +36,7 @@ const TestApp: FC<any> = ({ children, storeProps, routerProps = {} }) => {
   if (storeProps && typeof storeProps.getState !== 'undefined') { // storeProps is a store
     store = storeProps;
   } else if (storeProps) { // storeProps is state
-    appState = merge(rootState, storeProps);
+    appState = { ...rootState, ...storeProps };
     store = createTestStore(appState);
   } else {
     store = createTestStore(appState);
diff --git a/packages/pl-fe/src/layouts/home-layout.tsx b/packages/pl-fe/src/layouts/home-layout.tsx
index f1f6e0c5f..1d4444504 100644
--- a/packages/pl-fe/src/layouts/home-layout.tsx
+++ b/packages/pl-fe/src/layouts/home-layout.tsx
@@ -44,8 +44,8 @@ const HomeLayout: React.FC<IHomeLayout> = ({ children }) => {
   const composeBlock = useRef<HTMLDivElement>(null);
   const isMobile = useIsMobile();
 
-  const hasCrypto = typeof plFeConfig.cryptoAddresses.getIn([0, 'ticker']) === 'string';
-  const cryptoLimit = plFeConfig.cryptoDonatePanel.get('limit', 0);
+  const hasCrypto = typeof plFeConfig.cryptoAddresses[0]?.ticker === 'string';
+  const cryptoLimit = plFeConfig.cryptoDonatePanel.limit;
 
   const { isDragging, isDraggedOver } = useDraggedFiles(composeBlock, (files) => {
     dispatch(uploadCompose(composeId, files, intl));
diff --git a/packages/pl-fe/src/normalizers/pl-fe/pl-fe-config.ts b/packages/pl-fe/src/normalizers/pl-fe/pl-fe-config.ts
index c3be78be4..f5af237a0 100644
--- a/packages/pl-fe/src/normalizers/pl-fe/pl-fe-config.ts
+++ b/packages/pl-fe/src/normalizers/pl-fe/pl-fe-config.ts
@@ -1,23 +1,12 @@
-import {
-  Map as ImmutableMap,
-  List as ImmutableList,
-  Record as ImmutableRecord,
-  fromJS,
-} from 'immutable';
 import trimStart from 'lodash/trimStart';
+import * as v from 'valibot';
 
-import { normalizeUsername } from 'pl-fe/utils/input';
+import { coerceObject, filteredArray } from 'pl-fe/schemas/utils';
 import { toTailwind } from 'pl-fe/utils/tailwind';
 import { generateAccent } from 'pl-fe/utils/theme';
 
-import type {
-  PromoPanelItem,
-  FooterItem,
-  CryptoAddress,
-} from 'pl-fe/types/pl-fe';
-
-const DEFAULT_COLORS = ImmutableMap<string, any>({
-  success: ImmutableMap({
+const DEFAULT_COLORS = {
+  success: {
     50: '#f0fdf4',
     100: '#dcfce7',
     200: '#bbf7d0',
@@ -28,8 +17,8 @@ const DEFAULT_COLORS = ImmutableMap<string, any>({
     700: '#15803d',
     800: '#166534',
     900: '#14532d',
-  }),
-  danger: ImmutableMap({
+  },
+  danger: {
     50: '#fef2f2',
     100: '#fee2e2',
     200: '#fecaca',
@@ -40,189 +29,131 @@ const DEFAULT_COLORS = ImmutableMap<string, any>({
     700: '#b91c1c',
     800: '#991b1b',
     900: '#7f1d1d',
-  }),
+  },
   'greentext': '#789922',
+};
+
+const promoPanelItemSchema = coerceObject({
+  icon: v.fallback(v.string(), ''),
+  text: v.fallback(v.string(), ''),
+  url: v.fallback(v.string(), ''),
+  textLocales: v.fallback(v.record(v.string(), v.string()), {}),
 });
 
-const PromoPanelItemRecord = ImmutableRecord({
-  icon: '',
-  text: '',
-  url: '',
-  textLocales: ImmutableMap<string, string>(),
+type PromoPanelItem = v.InferOutput<typeof promoPanelItemSchema>;
+
+const promoPanelSchema = coerceObject({
+  items: filteredArray(promoPanelItemSchema),
 });
 
-const PromoPanelRecord = ImmutableRecord({
-  items: ImmutableList<PromoPanelItem>(),
+type PromoPanel = v.InferOutput<typeof promoPanelSchema>;
+
+const footerItemSchema = coerceObject({
+  title: v.fallback(v.string(), ''),
+  url: v.fallback(v.string(), ''),
+  titleLocales: v.fallback(v.record(v.string(), v.string()), {})
 });
 
-const FooterItemRecord = ImmutableRecord({
-  title: '',
-  url: '',
-});
+type FooterItem = v.InferOutput<typeof footerItemSchema>;
 
-const CryptoAddressRecord = ImmutableRecord({
-  address: '',
-  note: '',
-  ticker: '',
-});
+const cryptoAddressSchema = v.pipe(coerceObject({
+  address: v.fallback(v.string(), ''),
+  note: v.fallback(v.string(), ''),
+  ticker: v.fallback(v.string(), ''),
+}), v.transform((address) => {
+  address.ticker = trimStart(address.ticker, '$').toLowerCase();
+  return address;
+}));
 
-const PlFeConfigRecord = ImmutableRecord({
-  appleAppId: null,
-  authProvider: '',
-  logo: '',
-  logoDarkMode: null,
-  banner: '',
-  brandColor: '', // Empty
-  accentColor: '',
-  colors: ImmutableMap(),
-  copyright: `♥${new Date().getFullYear()}. Copying is an act of love. Please copy and share.`,
-  customCss: ImmutableList<string>(),
-  defaultSettings: ImmutableMap<string, any>(),
-  extensions: ImmutableMap(),
-  gdpr: false,
-  gdprUrl: '',
-  greentext: false,
-  promoPanel: PromoPanelRecord(),
-  navlinks: ImmutableMap({
-    homeFooter: ImmutableList<FooterItem>(),
+type CryptoAddress = v.InferOutput<typeof cryptoAddressSchema>;
+
+const plFeConfigSchema = v.pipe(coerceObject({
+  appleAppId: v.fallback(v.nullable(v.string()), null),
+  logo: v.fallback(v.string(), ''),
+  logoDarkMode: v.fallback(v.nullable(v.string()), null),
+  brandColor: v.fallback(v.string(), ''),
+  accentColor: v.fallback(v.string(), ''),
+  colors: v.any(),
+  copyright: v.fallback(v.string(), `♥${new Date().getFullYear()}. Copying is an act of love. Please copy and share.`),
+  defaultSettings: v.fallback(v.record(v.string(), v.any()), {}),
+  gdpr: v.fallback(v.boolean(), false),
+  gdprUrl: v.fallback(v.string(), ''),
+  greentext: v.fallback(v.boolean(), false),
+  promoPanel: promoPanelSchema,
+  navlinks: v.fallback(v.record(v.string(), filteredArray(footerItemSchema)), {}),
+  verifiedIcon: v.fallback(v.string(), ''),
+  displayFqn: v.fallback(v.boolean(), true),
+  cryptoAddresses: filteredArray(cryptoAddressSchema),
+  cryptoDonatePanel: coerceObject({
+    limit: v.fallback(v.number(), 1),
   }),
-  verifiedIcon: '',
-  displayFqn: true,
-  cryptoAddresses: ImmutableList<CryptoAddress>(),
-  cryptoDonatePanel: ImmutableMap({
-    limit: 1,
-  }),
-  aboutPages: ImmutableMap<string, ImmutableMap<string, unknown>>(),
-  authenticatedProfile: false,
-  linkFooterMessage: '',
-  links: ImmutableMap<string, string>(),
-  displayCta: false,
+  aboutPages: v.fallback(v.record(v.string(), coerceObject({
+    defaultLocale: v.fallback(v.string(), ''), // v.fallback(v.optional(v.string()), undefined),
+    locales: filteredArray(v.string()),
+  })), {}),
+  authenticatedProfile: v.fallback(v.boolean(), false),
+  linkFooterMessage: v.fallback(v.string(), ''),
+  links: v.fallback(v.record(v.string(), v.string()), {}),
+  displayCta: v.fallback(v.boolean(), false),
   /** Whether to inject suggested profiles into the Home feed. */
-  feedInjection: true,
-  tileServer: '',
-  tileServerAttribution: '',
-  redirectRootNoLogin: '',
+  feedInjection: v.fallback(v.boolean(), true),
+  tileServer: v.fallback(v.string(), ''),
+  tileServerAttribution: v.fallback(v.string(), ''),
+  redirectRootNoLogin: v.fallback(v.pipe(v.string(), v.transform((url: string) => {
+    if (!url) return '';
+
+    try {
+      // Basically just get the pathname with a leading slash.
+      const normalized = new URL(url, 'http://a').pathname;
+
+      if (normalized !== '/') {
+        return normalized;
+      } else {
+        // Prevent infinite redirect(?)
+        return '';
+      }
+    } catch (e) {
+      console.error('You have configured an invalid redirect in pl-fe Config.');
+      console.error(e);
+      return '';
+    }
+  })), ''),
   /**
    * Whether to use the preview URL for media thumbnails.
    * On some platforms this can be too blurry without additional configuration.
    */
-  mediaPreview: false,
-  sentryDsn: undefined as string | undefined,
-}, 'PlFeConfig');
+  mediaPreview: v.fallback(v.boolean(), false),
+  sentryDsn: v.fallback(v.optional(v.string()), undefined),
+}), v.transform((config) => {
+  const brandColor: string = config.brandColor || config.colors?.primary?.['500'] || '';
+  const accentColor: string = config.accentColor || config.colors?.accent?.['500'] || '' || generateAccent(brandColor);
 
-type PlFeConfigMap = ImmutableMap<string, any>;
+  const colors = {
+    ...config.colors,
+    ...Object.fromEntries(Object.entries(DEFAULT_COLORS).map(([key, value]) => [key, typeof value === 'string' ? value : { ...value, ...config.colors?.[key] }])),
+  };
 
-const normalizeCryptoAddress = (address: unknown): CryptoAddress =>
-  CryptoAddressRecord(ImmutableMap(fromJS(address))).update('ticker', ticker =>
-    trimStart(ticker, '$').toLowerCase(),
-  );
-
-const normalizeCryptoAddresses = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const addresses = ImmutableList(plFeConfig.get('cryptoAddresses'));
-  return plFeConfig.set('cryptoAddresses', addresses.map(normalizeCryptoAddress));
-};
-
-const normalizeBrandColor = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const brandColor = plFeConfig.get('brandColor') || plFeConfig.getIn(['colors', 'primary', '500']) || '';
-  return plFeConfig.set('brandColor', brandColor);
-};
-
-const normalizeAccentColor = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const brandColor = plFeConfig.get('brandColor');
-
-  const accentColor = plFeConfig.get('accentColor')
-    || plFeConfig.getIn(['colors', 'accent', '500'])
-    || (brandColor ? generateAccent(brandColor) : '');
-
-  return plFeConfig.set('accentColor', accentColor);
-};
-
-const normalizeColors = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const colors = DEFAULT_COLORS.mergeDeep(plFeConfig.get('colors'));
-  return toTailwind(plFeConfig.set('colors', colors));
-};
-
-const maybeAddMissingColors = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const colors = plFeConfig.get('colors');
-
-  const missing = ImmutableMap({
-    'gradient-start': colors.getIn(['primary', '500']),
-    'gradient-end': colors.getIn(['accent', '500']),
-    'accent-blue': colors.getIn(['primary', '600']),
+  const normalizedColors = toTailwind({
+    brandColor,
+    accentColor,
+    colors,
   });
 
-  return plFeConfig.set('colors', missing.mergeDeep(colors));
-};
+  return {
+    ...config,
+    brandColor,
+    accentColor,
+    colors: normalizedColors,
+  };
+}));
 
-const normalizePromoPanel = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const promoPanel = PromoPanelRecord(plFeConfig.get('promoPanel'));
-  const items = promoPanel.items.map(PromoPanelItemRecord);
-  return plFeConfig.set('promoPanel', promoPanel.set('items', items));
-};
-
-const normalizeFooterLinks = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const path = ['navlinks', 'homeFooter'];
-  const items = (plFeConfig.getIn(path, ImmutableList()) as ImmutableList<any>).map(FooterItemRecord);
-  return plFeConfig.setIn(path, items);
-};
-
-/** Single user mode is now managed by `redirectRootNoLogin`. */
-const upgradeSingleUserMode = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const singleUserMode = plFeConfig.get('singleUserMode') as boolean | undefined;
-  const singleUserModeProfile = plFeConfig.get('singleUserModeProfile') as string | undefined;
-  const redirectRootNoLogin = plFeConfig.get('redirectRootNoLogin') as string | undefined;
-
-  if (!redirectRootNoLogin && singleUserMode && singleUserModeProfile) {
-    return plFeConfig
-      .set('redirectRootNoLogin', `/@${normalizeUsername(singleUserModeProfile)}`)
-      .deleteAll(['singleUserMode', 'singleUserModeProfile']);
-  } else {
-    return plFeConfig
-      .deleteAll(['singleUserMode', 'singleUserModeProfile']);
-  }
-};
-
-/** Ensure a valid path is used. */
-const normalizeRedirectRootNoLogin = (plFeConfig: PlFeConfigMap): PlFeConfigMap => {
-  const redirectRootNoLogin = plFeConfig.get('redirectRootNoLogin');
-
-  if (!redirectRootNoLogin) return plFeConfig;
-
-  try {
-    // Basically just get the pathname with a leading slash.
-    const normalized = new URL(redirectRootNoLogin, 'http://a').pathname;
-
-    if (normalized !== '/') {
-      return plFeConfig.set('redirectRootNoLogin', normalized);
-    } else {
-      // Prevent infinite redirect(?)
-      return plFeConfig.delete('redirectRootNoLogin');
-    }
-  } catch (e) {
-    console.error('You have configured an invalid redirect in pl-fe Config.');
-    console.error(e);
-    return plFeConfig.delete('redirectRootNoLogin');
-  }
-};
-
-const normalizePlFeConfig = (plFeConfig: Record<string, any>) => PlFeConfigRecord(
-  ImmutableMap(fromJS(plFeConfig)).withMutations(plFeConfig => {
-    normalizeBrandColor(plFeConfig);
-    normalizeAccentColor(plFeConfig);
-    normalizeColors(plFeConfig);
-    normalizePromoPanel(plFeConfig);
-    normalizeFooterLinks(plFeConfig);
-    maybeAddMissingColors(plFeConfig);
-    normalizeCryptoAddresses(plFeConfig);
-    upgradeSingleUserMode(plFeConfig);
-    normalizeRedirectRootNoLogin(plFeConfig);
-  }),
-);
+type PlFeConfig = v.InferOutput<typeof plFeConfigSchema>;
 
 export {
-  PromoPanelItemRecord,
-  FooterItemRecord,
-  CryptoAddressRecord,
-  PlFeConfigRecord,
-  normalizePlFeConfig,
+  plFeConfigSchema,
+  type PromoPanelItem,
+  type PromoPanel,
+  type FooterItem,
+  type CryptoAddress,
+  type PlFeConfig,
 };
diff --git a/packages/pl-fe/src/reducers/pending-statuses.ts b/packages/pl-fe/src/reducers/pending-statuses.ts
index 44eeb7a8d..249078de1 100644
--- a/packages/pl-fe/src/reducers/pending-statuses.ts
+++ b/packages/pl-fe/src/reducers/pending-statuses.ts
@@ -1,4 +1,5 @@
-import { List as ImmutableList, Map as ImmutableMap, Record as ImmutableRecord, fromJS } from 'immutable';
+import { create } from 'mutative';
+import { CreateStatusParams } from 'pl-api';
 
 import {
   STATUS_CREATE_FAIL,
@@ -9,36 +10,53 @@ import {
 import type { StatusVisibility } from 'pl-fe/normalizers/status';
 import type { AnyAction } from 'redux';
 
-const PendingStatusRecord = ImmutableRecord({
+interface PendingStatus {
+  content_type: string;
+  in_reply_to_id: string | null;
+  media_ids: Array<string> | null;
+  quote_id: string | null;
+  poll: Exclude<CreateStatusParams['poll'], undefined> | null;
+  sensitive: boolean;
+  spoiler_text: string;
+  status: string;
+  to: Array<string> | null;
+  visibility: StatusVisibility;
+}
+
+const newPendingStatus = (props: Partial<PendingStatus> = {}): PendingStatus => ({
   content_type: '',
-  in_reply_to_id: null as string | null,
-  media_ids: null as ImmutableList<string> | null,
-  quote_id: null as string | null,
-  poll: null as ImmutableMap<string, any> | null,
+  in_reply_to_id: null,
+  media_ids: null,
+  quote_id: null,
+  poll: null,
   sensitive: false,
   spoiler_text: '',
   status: '',
-  to: null as ImmutableList<string> | null,
-  visibility: 'public' as StatusVisibility,
+  to: null,
+  visibility: 'public',
+  ...props,
 });
 
-type PendingStatus = ReturnType<typeof PendingStatusRecord>;
-type State = ImmutableMap<string, PendingStatus>;
+type State = Record<string, PendingStatus>;
 
-const initialState: State = ImmutableMap();
+const initialState: State = {};
 
-const importStatus = (state: State, params: ImmutableMap<string, any>, idempotencyKey: string) =>
-  state.set(idempotencyKey, PendingStatusRecord(params));
+const importStatus = (state: State, params: Record<string, any>, idempotencyKey: string) => {
+  state[idempotencyKey] = newPendingStatus(params);
+};
 
-const deleteStatus = (state: State, idempotencyKey: string) => state.delete(idempotencyKey);
+const deleteStatus = (state: State, idempotencyKey: string) => {
+  delete state[idempotencyKey];
+};
 
-const pending_statuses = (state = initialState, action: AnyAction) => {
+const pending_statuses = (state = initialState, action: AnyAction): State => {
   switch (action.type) {
     case STATUS_CREATE_REQUEST:
-      return action.editing ? state : importStatus(state, ImmutableMap(fromJS(action.params)), action.idempotencyKey);
+      if (action.editing) return state;
+      return create(state, (draft) => importStatus(draft, action.params, action.idempotencyKey));
     case STATUS_CREATE_FAIL:
     case STATUS_CREATE_SUCCESS:
-      return deleteStatus(state, action.idempotencyKey);
+      return create(state, (draft) => deleteStatus(draft, action.idempotencyKey));
     default:
       return state;
   }
diff --git a/packages/pl-fe/src/types/colors.ts b/packages/pl-fe/src/types/colors.ts
index 0866b8fb1..789736672 100644
--- a/packages/pl-fe/src/types/colors.ts
+++ b/packages/pl-fe/src/types/colors.ts
@@ -6,7 +6,7 @@ type TailwindColorObject = {
 };
 
 type TailwindColorPalette = {
-  [key: string]: TailwindColorObject | string;
+  [key: string]: TailwindColorObject | string | null;
 }
 
 export type { Rgb, Hsl, TailwindColorObject, TailwindColorPalette };
diff --git a/packages/pl-fe/src/types/pl-fe.ts b/packages/pl-fe/src/types/pl-fe.ts
index d01e11f8b..45201c06f 100644
--- a/packages/pl-fe/src/types/pl-fe.ts
+++ b/packages/pl-fe/src/types/pl-fe.ts
@@ -1,21 +1,3 @@
-import {
-  PromoPanelItemRecord,
-  FooterItemRecord,
-  CryptoAddressRecord,
-  PlFeConfigRecord,
-} from 'pl-fe/normalizers/pl-fe/pl-fe-config';
-
 type Me = string | null | false;
 
-type PromoPanelItem = ReturnType<typeof PromoPanelItemRecord>;
-type FooterItem = ReturnType<typeof FooterItemRecord>;
-type CryptoAddress = ReturnType<typeof CryptoAddressRecord>;
-type PlFeConfig = ReturnType<typeof PlFeConfigRecord>;
-
-export {
-  Me,
-  PromoPanelItem,
-  FooterItem,
-  CryptoAddress,
-  PlFeConfig,
-};
+export { Me };
diff --git a/packages/pl-fe/src/utils/tailwind.ts b/packages/pl-fe/src/utils/tailwind.ts
index dc163772f..3d6e8dfba 100644
--- a/packages/pl-fe/src/utils/tailwind.ts
+++ b/packages/pl-fe/src/utils/tailwind.ts
@@ -1,20 +1,17 @@
-import { Map as ImmutableMap, fromJS } from 'immutable';
-
 import tintify from 'pl-fe/utils/colors';
 import { generateAccent, generateNeutral } from 'pl-fe/utils/theme';
 
 import type { TailwindColorPalette } from 'pl-fe/types/colors';
 
-type PlFeConfig = ImmutableMap<string, any>;
-type PlFeColors = ImmutableMap<string, any>;
+type PlFeColors = Record<string, Record<string, string>>;
 
 /** Check if the value is a valid hex color */
 const isHex = (value: any): boolean => /^#([0-9A-F]{3}){1,2}$/i.test(value);
 
 /** Expand hex colors into tints */
-const expandPalette = (palette: TailwindColorPalette): TailwindColorPalette => {
+const expandPalette = (palette: TailwindColorPalette): TailwindColorPalette =>
   // Generate palette only for present colors
-  return Object.entries(palette).reduce((result: TailwindColorPalette, colorData) => {
+  Object.entries(palette).reduce((result: TailwindColorPalette, colorData) => {
     const [colorName, color] = colorData;
 
     // Conditionally handle hex color and Tailwind color object
@@ -26,32 +23,36 @@ const expandPalette = (palette: TailwindColorPalette): TailwindColorPalette => {
 
     return result;
   }, {});
-};
 
 // Generate accent color only if brandColor is present
-const maybeGenerateAccentColor = (brandColor: any): string | null =>
+const maybeGenerateAccentColor = (brandColor: string): string | null =>
   isHex(brandColor) ? generateAccent(brandColor) : null;
 
 /** Build a color object from legacy colors */
-const fromLegacyColors = (plFeConfig: PlFeConfig): TailwindColorPalette => {
-  const brandColor = plFeConfig.get('brandColor');
-  const accentColor = plFeConfig.get('accentColor');
-  const accent = isHex(accentColor) ? accentColor : maybeGenerateAccentColor(brandColor);
+const fromLegacyColors = ({ brandColor, accentColor }: {
+  brandColor: string;
+  accentColor: string | null;
+}): TailwindColorPalette => {
+  const accent = typeof accentColor === 'string' && isHex(accentColor) ? accentColor : maybeGenerateAccentColor(brandColor);
 
   return expandPalette({
     primary: isHex(brandColor) ? brandColor : null,
     secondary: accent,
     accent,
-    gray: (isHex(brandColor) ? generateNeutral(brandColor) : null) as any,
+    gray: (isHex(brandColor) ? generateNeutral(brandColor) : null),
   });
 };
 
 /** Convert pl-fe Config into Tailwind colors */
-const toTailwind = (plFeConfig: PlFeConfig): PlFeConfig => {
-  const colors: PlFeColors = ImmutableMap(plFeConfig.get('colors'));
-  const legacyColors = ImmutableMap(fromJS(fromLegacyColors(plFeConfig))) as PlFeColors;
+const toTailwind = (config: {
+  brandColor: string;
+  accentColor: string | null;
+  colors: Record<string, Record<string, string>>;
+}): Record<string, Record<string, string> | string> => {
+  const colors: PlFeColors = config.colors;
+  const legacyColors = fromLegacyColors(config);
 
-  return plFeConfig.set('colors', legacyColors.mergeDeep(colors));
+  return Object.fromEntries(Object.entries(legacyColors).map(([key, value]) => [key, typeof value === 'string' ? colors[key] || value : { ...value, ...config.colors[key] }]));
 };
 
 export {
diff --git a/packages/pl-fe/src/utils/theme.ts b/packages/pl-fe/src/utils/theme.ts
index 663d24baa..1f04713ab 100644
--- a/packages/pl-fe/src/utils/theme.ts
+++ b/packages/pl-fe/src/utils/theme.ts
@@ -1,7 +1,7 @@
 import { hexToRgb } from './colors';
 
+import type { PlFeConfig } from 'pl-fe/normalizers/pl-fe/pl-fe-config';
 import type { Rgb, Hsl, TailwindColorPalette, TailwindColorObject } from 'pl-fe/types/colors';
-import type { PlFeConfig } from 'pl-fe/types/pl-fe';
 
 // Taken from chromatism.js
 // https://github.com/graypegg/chromatism/blob/master/src/conversions/rgb.js
@@ -111,7 +111,7 @@ const colorsToCss = (colors: TailwindColorPalette): string => {
 };
 
 const generateThemeCss = (plFeConfig: PlFeConfig): string =>
-  colorsToCss(plFeConfig.colors.toJS() as TailwindColorPalette);
+  colorsToCss(plFeConfig.colors);
 
 const hexToHsl = (hex: string): Hsl | null => {
   const rgb = hexToRgb(hex);