diff --git a/src/app/api/schema.ts b/src/app/api/schema.ts
index f03c6b0..b809ef0 100644
--- a/src/app/api/schema.ts
+++ b/src/app/api/schema.ts
@@ -75,30 +75,7 @@ export interface paths {
       path?: never
       cookie?: never
     }
-    get: {
-      parameters: {
-        query?: never
-        header?: never
-        path: {
-          postId: string
-        }
-        cookie?: never
-      }
-      requestBody?: never
-      responses: {
-        /** @description OK */
-        200: {
-          headers: {
-            [name: string]: unknown
-          }
-          content: {
-            'text/plain': components['schemas']['GetPostResponse']
-            'application/json': components['schemas']['GetPostResponse']
-            'text/json': components['schemas']['GetPostResponse']
-          }
-        }
-      }
-    }
+    get?: never
     put?: never
     post?: never
     delete: {
@@ -211,8 +188,7 @@ export interface paths {
       requestBody: {
         content: {
           'multipart/form-data': {
-            /** Format: binary */
-            file?: string
+            file?: components['schemas']['IFormFile']
           }
         }
       }
@@ -357,78 +333,6 @@ export interface paths {
     patch?: never
     trace?: never
   }
-  '/auth/change-password': {
-    parameters: {
-      query?: never
-      header?: never
-      path?: never
-      cookie?: never
-    }
-    get?: never
-    put?: never
-    post: {
-      parameters: {
-        query?: never
-        header?: never
-        path?: never
-        cookie?: never
-      }
-      requestBody: {
-        content: {
-          'application/json': components['schemas']['ChangePasswordRequestBody']
-          'text/json': components['schemas']['ChangePasswordRequestBody']
-          'application/*+json': components['schemas']['ChangePasswordRequestBody']
-        }
-      }
-      responses: {
-        /** @description OK */
-        200: {
-          headers: {
-            [name: string]: unknown
-          }
-          content?: never
-        }
-      }
-    }
-    delete?: never
-    options?: never
-    head?: never
-    patch?: never
-    trace?: never
-  }
-  '/auth/delete-current-session': {
-    parameters: {
-      query?: never
-      header?: never
-      path?: never
-      cookie?: never
-    }
-    get?: never
-    put?: never
-    post: {
-      parameters: {
-        query?: never
-        header?: never
-        path?: never
-        cookie?: never
-      }
-      requestBody?: never
-      responses: {
-        /** @description OK */
-        200: {
-          headers: {
-            [name: string]: unknown
-          }
-          content?: never
-        }
-      }
-    }
-    delete?: never
-    options?: never
-    head?: never
-    patch?: never
-    trace?: never
-  }
   '/auth/session': {
     parameters: {
       query?: never
@@ -486,9 +390,9 @@ export interface paths {
             [name: string]: unknown
           }
           content: {
-            'text/plain': components['schemas']['GetUserInfoResult']
-            'application/json': components['schemas']['GetUserInfoResult']
-            'text/json': components['schemas']['GetUserInfoResult']
+            'text/plain': components['schemas']['RefreshUserResult']
+            'application/json': components['schemas']['RefreshUserResult']
+            'text/json': components['schemas']['RefreshUserResult']
           }
         }
       }
@@ -561,82 +465,6 @@ export interface paths {
     patch?: never
     trace?: never
   }
-  '/auth/create-signup-code': {
-    parameters: {
-      query?: never
-      header?: never
-      path?: never
-      cookie?: never
-    }
-    get?: never
-    put?: never
-    post: {
-      parameters: {
-        query?: never
-        header?: never
-        path?: never
-        cookie?: never
-      }
-      requestBody: {
-        content: {
-          'application/json': components['schemas']['CreateSignupCodeRequest']
-          'text/json': components['schemas']['CreateSignupCodeRequest']
-          'application/*+json': components['schemas']['CreateSignupCodeRequest']
-        }
-      }
-      responses: {
-        /** @description OK */
-        200: {
-          headers: {
-            [name: string]: unknown
-          }
-          content?: never
-        }
-      }
-    }
-    delete?: never
-    options?: never
-    head?: never
-    patch?: never
-    trace?: never
-  }
-  '/auth/list-signup-codes': {
-    parameters: {
-      query?: never
-      header?: never
-      path?: never
-      cookie?: never
-    }
-    get: {
-      parameters: {
-        query?: never
-        header?: never
-        path?: never
-        cookie?: never
-      }
-      requestBody?: never
-      responses: {
-        /** @description OK */
-        200: {
-          headers: {
-            [name: string]: unknown
-          }
-          content: {
-            'text/plain': components['schemas']['ListSignupCodesResult']
-            'application/json': components['schemas']['ListSignupCodesResult']
-            'text/json': components['schemas']['ListSignupCodesResult']
-          }
-        }
-      }
-    }
-    put?: never
-    post?: never
-    delete?: never
-    options?: never
-    head?: never
-    patch?: never
-    trace?: never
-  }
 }
 export type webhooks = Record<string, never>
 export interface components {
@@ -644,11 +472,6 @@ export interface components {
     AddPostReactionRequest: {
       emoji: string
     }
-    ChangePasswordRequestBody: {
-      /** Format: uuid */
-      userId: string
-      newPassword: string
-    }
     CreatePostRequest: {
       /** Format: uuid */
       authorId: string
@@ -678,25 +501,20 @@ export interface components {
     DeletePostReactionRequest: {
       emoji: string
     }
-    GetPostResponse: {
-      post: components['schemas']['PostDto']
-    }
-    GetUserInfoResult: {
-      /** Format: uuid */
-      userId: string
-      username: string
-      isSuperUser: boolean
-    }
+    /** Format: binary */
+    IFormFile: string
     ListSignupCodesResult: {
       signupCodes: components['schemas']['SignupCodeDto'][]
     }
     LoadPostsResponse: {
       posts: components['schemas']['PostDto'][]
+      /** Format: uuid */
+      next: string | null
     }
     LoginRequest: {
       username: string
       password: string
-      rememberMe: boolean
+      rememberMe: boolean | null
     }
     LoginResponse: {
       /** Format: uuid */
@@ -730,15 +548,21 @@ export interface components {
     }
     PostReactionDto: {
       emoji: string
-      authorName: string
-      /** Format: date-time */
-      reactedOn: string
+      /** Format: int32 */
+      count: number
+      didReact: boolean
+    }
+    RefreshUserResult: {
+      /** Format: uuid */
+      userId: string
+      username: string
+      isSuperUser: boolean
     }
     RegisterRequest: {
       username: string
       password: string
       signupCode: string
-      rememberMe: boolean
+      rememberMe: boolean | null
     }
     RegisterResponse: {
       /** Format: uuid */
diff --git a/src/app/feed/components/PostItem.tsx b/src/app/feed/components/PostItem.tsx
index 464f90f..05fcbb3 100644
--- a/src/app/feed/components/PostItem.tsx
+++ b/src/app/feed/components/PostItem.tsx
@@ -1,24 +1,15 @@
-import { PostMedia, PostReaction } from '../posts/posts.ts'
+import { Post, PostMedia } from '../posts/posts.ts'
 import { useEffect, useState } from 'react'
 import { Link } from 'react-router-dom'
-import { PostInfo } from '../posts/usePostViewModel.ts'
-import { useUserStore } from '../../user/user.ts'
 
 interface PostItemProps {
-  post: PostInfo
-  reactions: PostReaction[]
+  post: Post
   addReaction: (emoji: string) => void
   clearReaction: (emoji: string) => void
   hideViewButton?: boolean
 }
 
-export default function PostItem({
-  post,
-  reactions,
-  addReaction,
-  clearReaction,
-  hideViewButton = false,
-}: PostItemProps) {
+export default function PostItem({ post, addReaction, clearReaction, hideViewButton = false }: PostItemProps) {
   const formattedDate = post.createdAt.toLocaleString('en-US', {
     year: 'numeric',
     month: 'short',
@@ -62,30 +53,26 @@ export default function PostItem({
         </div>
       )}
 
-      <PostReactions
-        post={post}
-        reactions={reactions}
-        addReaction={addReaction}
-        clearReaction={clearReaction}
-      />
+      <PostReactions post={post} addReaction={addReaction} clearReaction={clearReaction} />
     </article>
   )
 }
 
 interface PostReactionsProps {
-  post: PostInfo
-  reactions: PostReaction[]
+  post: Post
   addReaction: (emoji: string) => void
   clearReaction: (emoji: string) => void
 }
 
-function PostReactions({ post, reactions, addReaction, clearReaction }: PostReactionsProps) {
-  const username = useUserStore((state) => state.user?.username)
+function PostReactions({ post, addReaction, clearReaction }: PostReactionsProps) {
+  const reactionMap = new Map(post.reactions.map((r) => [r.emoji, r]))
+
   return (
     <div className="flex flex-wrap gap-2 mt-3 justify-end">
       {post.possibleReactions.map((emoji) => {
-        const count = reactions.filter((r) => r.emoji === emoji).length
-        const didReact = reactions.some((r) => r.emoji == emoji && r.authorName == username)
+        const reaction = reactionMap.get(emoji)
+        const count = reaction?.count ?? 0
+        const didReact = reaction?.didReact ?? false
         const onClick = () => {
           if (didReact) {
             clearReaction(emoji)
diff --git a/src/app/feed/pages/HomePage.tsx b/src/app/feed/pages/HomePage.tsx
index edef521..35d994d 100644
--- a/src/app/feed/pages/HomePage.tsx
+++ b/src/app/feed/pages/HomePage.tsx
@@ -7,11 +7,11 @@ import SingleColumnLayout from '../../../layouts/SingleColumnLayout.tsx'
 import NavBar from '../../../components/NavBar.tsx'
 import AuthNavButtons from '../../auth/components/AuthNavButtons.tsx'
 import { useSaveSignupCodeToLocalStorage } from '../../../hooks/useSaveSignupCodeToLocalStorage.ts'
+import { Post } from '../posts/posts.ts'
+import { produce, WritableDraft } from 'immer'
 import PostItem from '../components/PostItem.tsx'
 import { useIntersectionLoad } from '../../../hooks/useIntersectionLoad.ts'
 import { delay } from '../../../utils/delay.ts'
-import { usePostViewModel } from '../posts/usePostViewModel.ts'
-import { Temporal } from '@js-temporal/polyfill'
 
 interface HomePageProps {
   postsService: PostsService
@@ -25,8 +25,7 @@ export default function HomePage({ postsService, mediaService }: HomePageProps)
   useSaveSignupCodeToLocalStorage()
   const [isSubmitting, setIsSubmitting] = useState(false)
 
-  const { posts, addPosts, addReaction, removeReaction, reactions } = usePostViewModel()
-
+  const [posts, setPosts] = useState<Post[]>([])
   const [hasMore, setHasMore] = useState(true)
   const [error, setError] = useState<string | null>(null)
 
@@ -38,14 +37,14 @@ export default function HomePage({ postsService, mediaService }: HomePageProps)
     loading.current = true
 
     try {
-      const [{ posts }] = await Promise.all([
+      const [{ posts, next }] = await Promise.all([
         postsService.loadPublicFeed(cursor.current, PageSize),
         delay(500),
       ])
 
       setHasMore(posts.length >= PageSize)
-      cursor.current = posts.at(-1)?.postId ?? null
-      addPosts(posts)
+      cursor.current = next
+      setPosts((prev) => [...prev, ...posts])
     } catch (e: unknown) {
       setError((e as Error).message)
     } finally {
@@ -74,7 +73,7 @@ export default function HomePage({ postsService, mediaService }: HomePageProps)
         }),
       )
       const post = await postsService.createNew(user.id, content, media, isPublic)
-      addPosts([post])
+      setPosts((pages) => [post, ...pages])
     } catch (error) {
       console.error('Failed to create post:', error)
     } finally {
@@ -87,13 +86,37 @@ export default function HomePage({ postsService, mediaService }: HomePageProps)
   const onAddReaction = async (postId: string, emoji: string) => {
     await postsService.addReaction(postId, emoji)
 
-    addReaction(postId, emoji, user!.username, Temporal.Now.instant())
+    setPosts((prev) =>
+      produce(prev, (draft: WritableDraft<Post[]>) => {
+        const post = draft.find((p) => p.postId === postId)
+        if (!post) return
+
+        const theReaction = post.reactions.find((r) => r.emoji === emoji)
+        if (theReaction) {
+          theReaction.count++
+          theReaction.didReact = true
+        } else {
+          post.reactions.push({ emoji, count: 1, didReact: true })
+        }
+      }),
+    )
   }
 
   const onClearReaction = async (postId: string, emoji: string) => {
     await postsService.removeReaction(postId, emoji)
 
-    removeReaction(postId, emoji, user!.username)
+    setPosts((prev) =>
+      produce(prev, (draft: WritableDraft<Post[]>) => {
+        const post = draft.find((p) => p.postId === postId)
+        if (!post) return
+
+        const theReaction = post.reactions.find((r) => r.emoji === emoji)
+        if (theReaction) {
+          theReaction.count = Math.max(theReaction.count - 1, 0)
+          theReaction.didReact = false
+        }
+      }),
+    )
   }
 
   const sentinelRef = useRef<HTMLDivElement | null>(null)
@@ -116,7 +139,6 @@ export default function HomePage({ postsService, mediaService }: HomePageProps)
                 <PostItem
                   key={post.postId}
                   post={post}
-                  reactions={reactions[post.postId] ?? []}
                   addReaction={(emoji) => onAddReaction(post.postId, emoji)}
                   clearReaction={(emoji) => onClearReaction(post.postId, emoji)}
                 />
diff --git a/src/app/feed/pages/PostPage.tsx b/src/app/feed/pages/PostPage.tsx
index f81b89a..ed4c7cc 100644
--- a/src/app/feed/pages/PostPage.tsx
+++ b/src/app/feed/pages/PostPage.tsx
@@ -1,15 +1,11 @@
-import { useEffect } from 'react'
+import { useEffect, useState } from 'react'
 import { useParams } from 'react-router-dom'
+import { Post } from '../posts/posts.ts'
 import { PostsService } from '../posts/postsService.ts'
 import SingleColumnLayout from '../../../layouts/SingleColumnLayout.tsx'
 import NavBar from '../../../components/NavBar.tsx'
 import AuthNavButtons from '../../auth/components/AuthNavButtons.tsx'
 import PostItem from '../components/PostItem.tsx'
-import NavButton from '../../../components/buttons/NavButton.tsx'
-import { useTranslations } from '../../i18n/translations.ts'
-import { usePostViewModel } from '../posts/usePostViewModel.ts'
-import { Temporal } from '@js-temporal/polyfill'
-import { useUserStore } from '../../user/user.ts'
 
 interface PostPageProps {
   postsService: PostsService
@@ -17,49 +13,103 @@ interface PostPageProps {
 
 export default function PostPage({ postsService }: PostPageProps) {
   const { postId } = useParams<{ postId: string }>()
-  const { posts, setPosts, addReaction, reactions, removeReaction } = usePostViewModel()
-  const { t } = useTranslations()
-  const username = useUserStore((state) => state.user?.username)
-
-  const post = posts.at(0)
+  const [post, setPost] = useState<Post | null>(null)
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState<string | null>(null)
 
   useEffect(() => {
-    if (!postId) return
-    postsService.load(postId).then((post) => setPosts(post ? [post] : []))
-  }, [postId, postsService, setPosts])
+    const fetchPost = async () => {
+      if (!postId) {
+        setError('Post ID is required')
+        setLoading(false)
+        return
+      }
+
+      try {
+        // Load posts and find the one with matching ID
+        const { posts } = await postsService.loadPublicFeed(null, 100)
+        const foundPost = posts.find((p) => p.postId === postId)
+
+        if (foundPost) {
+          setPost(foundPost)
+        } else {
+          setError('Post not found')
+        }
+      } catch (e: unknown) {
+        setError((e as Error).message)
+      } finally {
+        setLoading(false)
+      }
+    }
+
+    fetchPost()
+  }, [postId, postsService])
 
   const onAddReaction = async (emoji: string) => {
-    if (!username) return
     if (!post) return
 
     await postsService.addReaction(post.postId, emoji)
 
-    addReaction(post.postId, emoji, username, Temporal.Now.instant())
+    setPost((prevPost) => {
+      if (!prevPost) return null
+
+      const updatedReactions = [...prevPost.reactions]
+      const theReaction = updatedReactions.find((r) => r.emoji === emoji)
+
+      if (theReaction) {
+        theReaction.count++
+        theReaction.didReact = true
+      } else {
+        updatedReactions.push({ emoji, count: 1, didReact: true })
+      }
+
+      return {
+        ...prevPost,
+        reactions: updatedReactions,
+      }
+    })
   }
 
   const onClearReaction = async (emoji: string) => {
-    if (!username) return
     if (!post) return
 
     await postsService.removeReaction(post.postId, emoji)
-    removeReaction(post.postId, emoji, username)
+
+    setPost((prevPost) => {
+      if (!prevPost) return null
+
+      const updatedReactions = [...prevPost.reactions]
+      const theReaction = updatedReactions.find((r) => r.emoji === emoji)
+
+      if (theReaction) {
+        theReaction.count = Math.max(theReaction.count - 1, 0)
+        theReaction.didReact = false
+      }
+
+      return {
+        ...prevPost,
+        reactions: updatedReactions,
+      }
+    })
   }
 
   return (
     <SingleColumnLayout
       navbar={
         <NavBar>
-          <NavButton to={{ pathname: '/' }}>{t('nav.home')}</NavButton>
           <AuthNavButtons />
         </NavBar>
       }
     >
       <main className="w-full max-w-3xl mx-auto">
+        {loading && <div className="text-center py-8">Loading...</div>}
+
+        {error && <div className="text-center py-8 text-red-500">Error: {error}</div>}
+
         {post && (
           <div className="w-full">
             <PostItem
               post={post}
-              reactions={reactions[post.postId] ?? []}
               addReaction={onAddReaction}
               clearReaction={onClearReaction}
               hideViewButton={true}
diff --git a/src/app/feed/posts/posts.ts b/src/app/feed/posts/posts.ts
index 7fe2547..bcd1b0b 100644
--- a/src/app/feed/posts/posts.ts
+++ b/src/app/feed/posts/posts.ts
@@ -2,10 +2,10 @@ import { Temporal } from '@js-temporal/polyfill'
 import { components } from '../../api/schema.ts'
 import { immerable } from 'immer'
 
-export interface PostReaction {
+export interface EmojiReaction {
   emoji: string
-  authorName: string
-  reactedOn: Temporal.Instant
+  count: number
+  didReact: boolean
 }
 
 export class Post {
@@ -16,7 +16,7 @@ export class Post {
   public readonly media: PostMedia[]
   public readonly createdAt: Temporal.Instant
   public readonly authorName: string
-  public readonly reactions: PostReaction[]
+  public readonly reactions: EmojiReaction[]
   public readonly possibleReactions: string[]
 
   constructor(
@@ -25,7 +25,7 @@ export class Post {
     media: PostMedia[],
     createdAt: string | Temporal.Instant,
     authorName: string,
-    reactions: PostReaction[] = [],
+    reactions: EmojiReaction[] = [],
     possibleReactions: string[] = [],
   ) {
     this.postId = postId
@@ -44,7 +44,11 @@ export class Post {
       dto.media.map((m) => new PostMediaImpl(new URL(m.url), m.width, m.height)),
       Temporal.Instant.from(dto.createdAt),
       dto.author.username,
-      dto.reactions.map((r) => ({ ...r, reactedOn: Temporal.Instant.from(r.reactedOn) })),
+      dto.reactions.map((r) => ({
+        emoji: r.emoji,
+        count: r.count,
+        didReact: r.didReact,
+      })),
       dto.possibleReactions,
     )
   }
diff --git a/src/app/feed/posts/postsService.ts b/src/app/feed/posts/postsService.ts
index 11272e9..06fa2ff 100644
--- a/src/app/feed/posts/postsService.ts
+++ b/src/app/feed/posts/postsService.ts
@@ -29,34 +29,22 @@ export class PostsService {
     return Post.fromDto(response.data.post)
   }
 
-  async load(postId: string): Promise<Post | null> {
-    const response = await this.client.GET('/posts/{postId}', {
-      params: {
-        path: { postId },
-      },
-      credentials: 'include',
-    })
-
-    if (!response.data?.post) {
-      return null
-    }
-
-    return Post.fromDto(response.data.post)
-  }
-
-  async loadPublicFeed(cursor: string | null, amount: number | null): Promise<{ posts: Post[] }> {
+  async loadPublicFeed(
+    cursor: string | null,
+    amount: number | null,
+  ): Promise<{ posts: Post[]; next: string | null }> {
     const response = await this.client.GET('/posts', {
       params: {
-        query: { After: cursor ?? undefined, Amount: amount ?? undefined },
+        query: { From: cursor ?? undefined, Amount: amount ?? undefined },
       },
       credentials: 'include',
     })
 
     if (!response.data) {
-      return { posts: [] }
+      return { posts: [], next: null }
     }
 
-    return { posts: response.data.posts.map(Post.fromDto) }
+    return { posts: response.data.posts.map(Post.fromDto), next: response.data.next }
   }
 
   async addReaction(postId: string, emoji: string): Promise<void> {
diff --git a/src/app/feed/posts/usePostViewModel.ts b/src/app/feed/posts/usePostViewModel.ts
deleted file mode 100644
index 74004ef..0000000
--- a/src/app/feed/posts/usePostViewModel.ts
+++ /dev/null
@@ -1,82 +0,0 @@
-import { useCallback, useState } from 'react'
-import { Post, PostMedia, PostReaction } from './posts.ts'
-import { Temporal } from '@js-temporal/polyfill'
-import { produce } from 'immer'
-
-export interface PostInfo {
-  postId: string
-  authorName: string
-  content: string
-  createdAt: Temporal.Instant
-  media: PostMedia[]
-  possibleReactions: string[]
-}
-
-type ReactionMap = Record<string, PostReaction[]>
-
-export function usePostViewModel() {
-  const [posts, _setPosts] = useState<PostInfo[]>([])
-  const [reactions, setReactions] = useState<ReactionMap>({})
-
-  const setPosts = useCallback((posts: Post[]) => {
-    _setPosts([...posts])
-
-    setReactions(
-      posts.reduce((acc, post) => {
-        acc[post.postId] = [...post.reactions]
-        return acc
-      }, {} as ReactionMap),
-    )
-  }, [])
-
-  const addPosts = useCallback((posts: Post[]) => {
-    _setPosts((current) => {
-      return [...current, ...posts]
-    })
-
-    setReactions((current) =>
-      produce(current, (draft) => {
-        for (const post of posts) {
-          draft[post.postId] = [...post.reactions]
-        }
-      }),
-    )
-  }, [])
-
-  function addReaction(
-    postId: string,
-    emoji: string,
-    authorName: string,
-    reactedOn: Temporal.Instant,
-  ) {
-    setReactions((current) =>
-      produce(current, (draft) => {
-        if (draft[postId]?.some((r) => r.emoji === emoji && r.authorName == authorName)) {
-          return
-        }
-
-        const reaction: PostReaction = { emoji, authorName, reactedOn }
-
-        if (!draft[postId]) {
-          draft[postId] = [{ ...reaction }]
-        } else {
-          draft[postId].push({ ...reaction })
-        }
-      }),
-    )
-  }
-
-  function removeReaction(postId: string, emoji: string, authorName: string) {
-    setReactions((current) =>
-      produce(current, (draft) => {
-        if (!draft[postId]) return
-
-        draft[postId] = draft[postId].filter(
-          (r) => r.emoji !== emoji || r.authorName !== authorName,
-        )
-      }),
-    )
-  }
-
-  return { posts, reactions, addPosts, setPosts, addReaction, removeReaction }
-}
diff --git a/src/components/NavBar.tsx b/src/components/NavBar.tsx
index 89691c9..d8fb4f7 100644
--- a/src/components/NavBar.tsx
+++ b/src/components/NavBar.tsx
@@ -1,10 +1,8 @@
-import { PropsWithChildren, ReactNode } from 'react'
+import { PropsWithChildren } from 'react'
 import { Role, useUserStore } from '../app/user/user.ts'
 import NavButton from './buttons/NavButton.tsx'
 
-type NavBarProps = {
-  leftChildren?: ReactNode
-}
+type NavBarProps = unknown
 
 export default function NavBar({ children }: PropsWithChildren<NavBarProps>) {
   const user = useUserStore((state) => state.user)
diff --git a/src/utils/groupByAndMap.ts b/src/utils/groupByAndMap.ts
deleted file mode 100644
index 7f30995..0000000
--- a/src/utils/groupByAndMap.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-export function groupByAndMap<T, U>(
-  items: T[],
-  groupBy: (item: T) => string,
-  map: (item: T) => U,
-): Record<string, U[]> {
-  const groupings: Record<string, U[]> = {}
-
-  for (const item of items) {
-    const key = groupBy(item)
-
-    if (!groupings[key]) {
-      groupings[key] = []
-    }
-
-    groupings[key].push(map(item))
-  }
-
-  return groupings
-}