diff --git a/src/screens/ModerationInteractionSettings/index.tsx b/src/screens/ModerationInteractionSettings/index.tsx
index 6c7c85caf2..4b7e3c984a 100644
--- a/src/screens/ModerationInteractionSettings/index.tsx
+++ b/src/screens/ModerationInteractionSettings/index.tsx
@@ -2,34 +2,24 @@ import React from 'react'
 import {View} from 'react-native'
 import {msg, Trans} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
-import {AppBskyFeedDefs, AppBskyFeedPostgate, AtUri} from '@atproto/api'
 
 import {logger} from '#/logger'
-import {useAgent, useSession} from '#/state/session'
-import {atoms as a, useGutters} from '#/alf'
-import {PostInteractionSettingsForm} from '#/components/dialogs/PostInteractionSettingsDialog'
-import * as Layout from '#/components/Layout'
-import {Admonition} from '#/components/Admonition'
+import {usePostInteractionSettingsMutation} from '#/state/queries/post-interaction-settings'
+import {createPostgateRecord} from '#/state/queries/postgate/util'
 import {
-  createPostgateQueryKey,
-  getPostgateRecord,
-  usePostgateQuery,
-  useWritePostgateMutation,
-} from '#/state/queries/postgate'
+  usePreferencesQuery,
+  UsePreferencesQueryResponse,
+} from '#/state/queries/preferences'
 import {
-  createPostgateRecord,
-  embeddingRules,
-} from '#/state/queries/postgate/util'
-import {
-  createThreadgateViewQueryKey,
-  getThreadgateView,
   ThreadgateAllowUISetting,
-  threadgateViewToAllowUISetting,
-  useSetThreadgateAllowMutation,
-  useThreadgateViewQuery,
+  threadgateAllowUISettingToAllowRecordValue,
   threadgateRecordToAllowUISetting,
 } from '#/state/queries/threadgate'
-import {usePreferencesQuery, UsePreferencesQueryResponse} from '#/state/queries/preferences'
+import * as Toast from '#/view/com/util/Toast'
+import {atoms as a, useGutters} from '#/alf'
+import {Admonition} from '#/components/Admonition'
+import {PostInteractionSettingsForm} from '#/components/dialogs/PostInteractionSettingsDialog'
+import * as Layout from '#/components/Layout'
 import {Loader} from '#/components/Loader'
 
 export function Screen() {
@@ -58,7 +48,7 @@ export function Screen() {
             <Inner preferences={preferences} />
           ) : (
             <View style={[gutters, a.justify_center, a.align_center]}>
-              <Loader size='xl' />
+              <Loader size="xl" />
             </View>
           )}
         </View>
@@ -69,63 +59,59 @@ export function Screen() {
 
 function Inner({preferences}: {preferences: UsePreferencesQueryResponse}) {
   const {_} = useLingui()
-  const {currentAccount} = useSession()
-  const [isSaving, setIsSaving] = React.useState(false)
-  console.log(preferences)
+  const {mutateAsync: setPostInteractionSettings, isPending} =
+    usePostInteractionSettingsMutation()
+  const [error, setError] = React.useState<string | undefined>(undefined)
 
   const [postgate, setPostgate] = React.useState(() => {
     return createPostgateRecord({
       post: '',
-      embeddingRules: preferences.postInteractionSettings.postgateEmbeddingRules
+      embeddingRules:
+        preferences.postInteractionSettings.postgateEmbeddingRules,
     })
   })
-  const [allowUISettings, setAllowUISettings] = React.useState<ThreadgateAllowUISetting[]>(() => {
+  const [allowUISettings, setAllowUISettings] = React.useState<
+    ThreadgateAllowUISetting[]
+  >(() => {
     return threadgateRecordToAllowUISetting({
       $type: 'app.bsky.feed.threadgate',
       post: '',
       createdAt: new Date().toString(),
-      allow: preferences.postInteractionSettings.threadgateAllowRules
+      allow: preferences.postInteractionSettings.threadgateAllowRules,
     })
   })
 
   const onSave = React.useCallback(async () => {
-    setIsSaving(true)
+    setError('')
 
     try {
-      const requests = []
-
-      if (postgate) {
-        // TODO
-      }
-
-      if (allowUISettings) {
-        // TODO
-      }
+      await setPostInteractionSettings({
+        threadgateAllowRules:
+          threadgateAllowUISettingToAllowRecordValue(allowUISettings),
+        postgateEmbeddingRules: postgate.embeddingRules ?? [],
+      })
+      Toast.show(_(msg`Settings saved`))
     } catch (e: any) {
       logger.error(`Failed to save post interaction settings`, {
         context: 'PostInteractionSettingsDialogControlledInner',
         safeMessage: e.message,
       })
-    } finally {
-      setIsSaving(false)
+      setError(_(msg`Failed to save settings. Please try again.`))
     }
-  }, [
-    _,
-    postgate,
-    allowUISettings,
-    setIsSaving,
-  ])
+  }, [_, postgate, allowUISettings, setPostInteractionSettings])
 
   return (
     <>
       <PostInteractionSettingsForm
-        isSaving={isSaving}
+        isSaving={isPending}
         onSave={onSave}
         postgate={postgate}
         onChangePostgate={setPostgate}
         threadgateAllowUISettings={allowUISettings}
         onChangeThreadgateAllowUISettings={setAllowUISettings}
       />
+
+      {error && <Admonition type="error">{error}</Admonition>}
     </>
   )
 }
diff --git a/src/state/queries/post-interaction-settings.ts b/src/state/queries/post-interaction-settings.ts
new file mode 100644
index 0000000000..a256f29561
--- /dev/null
+++ b/src/state/queries/post-interaction-settings.ts
@@ -0,0 +1,20 @@
+import {AppBskyActorDefs} from '@atproto/api'
+import {useMutation, useQueryClient} from '@tanstack/react-query'
+
+import {preferencesQueryKey} from '#/state/queries/preferences'
+import {useAgent} from '#/state/session'
+
+export function usePostInteractionSettingsMutation() {
+  const qc = useQueryClient()
+  const agent = useAgent()
+  return useMutation({
+    async mutationFn(props: AppBskyActorDefs.PostInteractionSettingsPref) {
+      await agent.setPostInteractionSettings(props)
+    },
+    async onSuccess() {
+      await qc.invalidateQueries({
+        queryKey: preferencesQueryKey,
+      })
+    },
+  })
+}
diff --git a/src/state/queries/preferences/const.ts b/src/state/queries/preferences/const.ts
index 549f7ce291..3c1fead5e8 100644
--- a/src/state/queries/preferences/const.ts
+++ b/src/state/queries/preferences/const.ts
@@ -39,4 +39,8 @@ export const DEFAULT_LOGGED_OUT_PREFERENCES: UsePreferencesQueryResponse = {
     activeProgressGuide: undefined,
     nuxs: [],
   },
+  postInteractionSettings: {
+    threadgateAllowRules: undefined,
+    postgateEmbeddingRules: [],
+  },
 }
diff --git a/src/view/com/composer/Composer.tsx b/src/view/com/composer/Composer.tsx
index 0e9b52ce0c..6be418fad2 100644
--- a/src/view/com/composer/Composer.tsx
+++ b/src/view/com/composer/Composer.tsx
@@ -83,6 +83,10 @@ import {
   useLanguagePrefs,
   useLanguagePrefsApi,
 } from '#/state/preferences/languages'
+import {
+  preferencesQueryKey,
+  UsePreferencesQueryResponse,
+} from '#/state/queries/preferences'
 import {useProfileQuery} from '#/state/queries/profile'
 import {Gif} from '#/state/queries/tenor'
 import {useAgent, useSession} from '#/state/session'
@@ -169,6 +173,11 @@ export const ComposePost = ({
   const discardPromptControl = Prompt.usePromptControl()
   const {closeAllDialogs} = useDialogStateControlContext()
   const {closeAllModals} = useModalControls()
+  const initInteractionSettings = useMemo(() => {
+    const prefs =
+      queryClient.getQueryData<UsePreferencesQueryResponse>(preferencesQueryKey)
+    return prefs?.postInteractionSettings
+  }, [queryClient])
 
   const [isKeyboardVisible] = useIsKeyboardVisible({iosUseWillEvents: true})
   const [isPublishing, setIsPublishing] = useState(false)
@@ -177,7 +186,13 @@ export const ComposePost = ({
 
   const [composerState, composerDispatch] = useReducer(
     composerReducer,
-    {initImageUris, initQuoteUri: initQuote?.uri, initText, initMention},
+    {
+      initImageUris,
+      initQuoteUri: initQuote?.uri,
+      initText,
+      initMention,
+      initInteractionSettings,
+    },
     createComposerState,
   )
 
diff --git a/src/view/com/composer/state/composer.ts b/src/view/com/composer/state/composer.ts
index 6d4f10297f..f5a55f175c 100644
--- a/src/view/com/composer/state/composer.ts
+++ b/src/view/com/composer/state/composer.ts
@@ -1,5 +1,10 @@
 import {ImagePickerAsset} from 'expo-image-picker'
-import {AppBskyFeedPostgate, AppBskyRichtextFacet, RichText} from '@atproto/api'
+import {
+  AppBskyFeedPostgate,
+  AppBskyRichtextFacet,
+  BskyPreferences,
+  RichText,
+} from '@atproto/api'
 import {nanoid} from 'nanoid/non-secure'
 
 import {SelfLabel} from '#/lib/moderation'
@@ -13,7 +18,7 @@ import {
 import {ComposerImage, createInitialImages} from '#/state/gallery'
 import {createPostgateRecord} from '#/state/queries/postgate/util'
 import {Gif} from '#/state/queries/tenor'
-import {threadgateViewToAllowUISetting} from '#/state/queries/threadgate'
+import {threadgateRecordToAllowUISetting} from '#/state/queries/threadgate'
 import {ThreadgateAllowUISetting} from '#/state/queries/threadgate'
 import {ComposerOpts} from '#/state/shell/composer'
 import {
@@ -477,11 +482,15 @@ export function createComposerState({
   initMention,
   initImageUris,
   initQuoteUri,
+  initInteractionSettings,
 }: {
   initText: string | undefined
   initMention: string | undefined
   initImageUris: ComposerOpts['imageUris']
   initQuoteUri: string | undefined
+  initInteractionSettings:
+    | BskyPreferences['postInteractionSettings']
+    | undefined
 }): ComposerState {
   let media: ImagesMedia | undefined
   if (initImageUris?.length) {
@@ -591,8 +600,16 @@ export function createComposerState({
           },
         },
       ],
-      postgate: createPostgateRecord({post: ''}),
-      threadgate: threadgateViewToAllowUISetting(undefined),
+      postgate: createPostgateRecord({
+        post: '',
+        embeddingRules: initInteractionSettings?.postgateEmbeddingRules || [],
+      }),
+      threadgate: threadgateRecordToAllowUISetting({
+        $type: 'app.bsky.feed.threadgate',
+        post: '',
+        createdAt: new Date().toString(),
+        allow: initInteractionSettings?.threadgateAllowRules,
+      }),
     },
   }
 }