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diff --git a/packages/lysand-types/index.ts b/packages/lysand-types/index.ts
new file mode 100644
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+++ b/packages/lysand-types/index.ts
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+export interface ContentFormat {
+    [contentType: string]: {
+        content: string;
+        description?: string;
+        size?: number;
+        hash?: {
+            md5?: string;
+            sha1?: string;
+            sha256?: string;
+            sha512?: string;
+            [key: string]: string | undefined;
+        };
+        blurhash?: string;
+        fps?: number;
+        width?: number;
+        height?: number;
+        duration?: number;
+    };
+}
+
+export interface Emoji {
+    name: string;
+    alt?: string;
+    url: ContentFormat;
+}
+
+export interface Collections<T> {
+    first: string;
+    last: string;
+    total_count: number;
+    author: string;
+    next?: string;
+    prev?: string;
+    items: T[];
+}
+
+export interface ActorPublicKeyData {
+    public_key: string;
+    actor: string;
+}
+
+export interface Entity {
+    id: string;
+    created_at: string;
+    uri: string;
+    type: string;
+}
+
+export interface Publication {
+    type: "Note" | "Patch";
+    author: string;
+    content?: ContentFormat;
+    attachments?: ContentFormat[];
+    replies_to?: string;
+    quotes?: string;
+    mentions?: string[];
+    subject?: string;
+    is_sensitive?: boolean;
+    visibility: Visibility;
+}
+
+export enum Visibility {
+    Public = "public",
+    Unlisted = "unlisted",
+    Followers = "followers",
+    Direct = "direct",
+}
+
+export interface Note extends Publication {
+    type: "Note";
+}
+
+export interface Patch extends Publication {
+    type: "Patch";
+    patched_id: string;
+    patched_at: string;
+}
+
+export interface User extends Entity {
+    type: "User";
+    id: string;
+    uri: string;
+    created_at: string;
+    display_name?: string;
+    username: string;
+    avatar?: ContentFormat;
+    header?: ContentFormat;
+    indexable: boolean;
+    public_key: ActorPublicKeyData;
+    bio?: ContentFormat;
+    fields?: Field[];
+    featured: string;
+    followers: string;
+    following: string;
+    likes: string;
+    dislikes: string;
+    inbox: string;
+    outbox: string;
+}
+
+export interface Field {
+    key: ContentFormat;
+    value: ContentFormat;
+}
+
+export interface Like extends Entity {
+    type: "Like";
+    author: string;
+    object: string;
+}
+
+export interface Dislike extends Entity {
+    type: "Dislike";
+    author: string;
+    object: string;
+}
+
+export interface Follow extends Entity {
+    type: "Follow";
+    author: string;
+    followee: string;
+}
+
+export interface FollowAccept extends Entity {
+    type: "FollowAccept";
+    author: string;
+    follower: string;
+}
+
+export interface FollowReject extends Entity {
+    type: "FollowReject";
+    author: string;
+    follower: string;
+}
+
+export interface Announce extends Entity {
+    type: "Announce";
+    author: string;
+    object: string;
+}
+
+// Specific extension types will extend from this
+export interface Extension extends Entity {
+    type: "Extension";
+    extension_type: string;
+}
+
+export interface Reaction extends Extension {
+    extension_type: "org.lysand:reactions/Reaction";
+    object: string;
+    content: string;
+}
+
+export interface Poll extends Extension {
+    extension_type: "org.lysand:polls/Poll";
+    options: ContentFormat[];
+    votes: number[];
+    multiple_choice?: boolean;
+    expires_at: string;
+}
+
+export interface Vote extends Extension {
+    extension_type: "org.lysand:polls/Vote";
+    poll: string;
+    option: number;
+}
+
+export interface VoteResult extends Extension {
+    extension_type: "org.lysand:polls/VoteResult";
+    poll: string;
+    votes: number[];
+}
+
+export interface Report extends Extension {
+    extension_type: "org.lysand:reports/Report";
+    objects: string[];
+    reason: string;
+    comment?: string;
+}
+
+export interface VanityExtension {
+    avatar_overlay?: ContentFormat;
+    avatar_mask?: ContentFormat;
+    background?: ContentFormat;
+    audio?: ContentFormat;
+    pronouns?: {
+        [language: string]: (ShortPronoun | LongPronoun)[];
+    };
+    birthday?: string;
+    location?: string;
+    activitypub?: string;
+}
+
+export type ShortPronoun = string;
+
+export interface LongPronoun {
+    subject: string;
+    object: string;
+    dependent_possessive: string;
+    independent_possessive: string;
+    reflexive: string;
+}
diff --git a/packages/lysand-types/package.json b/packages/lysand-types/package.json
new file mode 100644
index 00000000..c71d6621
--- /dev/null
+++ b/packages/lysand-types/package.json
@@ -0,0 +1,6 @@
+{
+    "name": "lysand-types",
+    "version": "2.0.0",
+    "description": "A collection of types for the Lysand protocol",
+    "main": "index.ts"
+}