diff --git a/.vscode/settings.json b/.vscode/settings.json
index 975e9b7d..1158a1a6 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -4,6 +4,6 @@
 	"editor.codeActionsOnSave": {
 		"quickfix.biome": "explicit"
 	},
-	"cSpell.words": ["displayname", "Elysia", "Unpadded"],
+	"cSpell.words": ["displayname", "Elysia", "homeserver", "Unpadded"],
 	"typescript.tsdk": "node_modules/typescript/lib"
 }
diff --git a/packages/homeserver/src/errors.ts b/packages/homeserver/src/errors.ts
index 3a3e07ad..368713e8 100644
--- a/packages/homeserver/src/errors.ts
+++ b/packages/homeserver/src/errors.ts
@@ -2,7 +2,7 @@ export class MatrixError<TCode extends string> extends Error {
 	public readonly status: number = 400;
 
 	public constructor(
-		public readonly code: TCode,
+		public readonly errcode: TCode,
 		message: string,
 	) {
 		super(message);
@@ -10,7 +10,7 @@ export class MatrixError<TCode extends string> extends Error {
 
 	public toJSON() {
 		return {
-			errcode: this.code,
+			errcode: this.errcode,
 			error: this.message,
 		};
 	}
diff --git a/packages/homeserver/src/makeRequest.ts b/packages/homeserver/src/makeRequest.ts
index 3c58745b..9d37e1e1 100644
--- a/packages/homeserver/src/makeRequest.ts
+++ b/packages/homeserver/src/makeRequest.ts
@@ -39,13 +39,21 @@ export const makeSignedRequest = async <
 	signingName: string;
 	queryString?: string;
 }) => {
-	const { address, headers } = await resolveHostAddressByServerName(domain, signingName);
+	const { address, headers } = await resolveHostAddressByServerName(
+		domain,
+		signingName,
+	);
 	const url = new URL(`https://${address}${uri}`);
 	if (queryString) {
 		url.search = queryString;
 	}
 	const signedBody =
-		body && (await signJson(computeHash({ ...body, signatures: {} }), signingKey, signingName));
+		body &&
+		(await signJson(
+			computeHash({ ...body, signatures: {} }),
+			signingKey,
+			signingName,
+		));
 
 	console.log("body ->", method, domain, url.toString(), signedBody);
 
@@ -96,7 +104,10 @@ export const makeRequest = async <
 	options?: Record<string, any>;
 	queryString?: string;
 }) => {
-	const { address, headers } = await resolveHostAddressByServerName(domain, signingName);
+	const { address, headers } = await resolveHostAddressByServerName(
+		domain,
+		signingName,
+	);
 	const url = new URL(`https://${address}${uri}`);
 	if (queryString) {
 		url.search = queryString;
@@ -124,11 +135,12 @@ export const makeUnsignedRequest = async <
 	method,
 	domain,
 	uri,
+	body,
 	options = {},
 	signingKey,
 	signingName,
 	queryString,
-}: {
+}: (B extends Record<string, unknown> ? { body: B } : { body?: never }) & {
 	method: M;
 	domain: string;
 	uri: U;
@@ -144,17 +156,20 @@ export const makeUnsignedRequest = async <
 		domain,
 		method,
 		uri,
-		options.body,
+		body,
 	);
 
-	const { address, headers } = await resolveHostAddressByServerName(domain, signingName);
+	const { address, headers } = await resolveHostAddressByServerName(
+		domain,
+		signingName,
+	);
 	const url = new URL(`https://${address}${uri}`);
 	if (queryString) {
 		url.search = queryString;
 	}
 	const response = await fetch(url.toString(), {
 		...options,
-		...(options.body && { body: JSON.stringify(options.body) }),
+		...(body && { body: JSON.stringify(body) }),
 		method,
 		headers: {
 			Authorization: auth,
diff --git a/packages/homeserver/src/procedures/makeJoin.ts b/packages/homeserver/src/procedures/makeJoin.ts
index f8e77c2a..17314a3b 100644
--- a/packages/homeserver/src/procedures/makeJoin.ts
+++ b/packages/homeserver/src/procedures/makeJoin.ts
@@ -1,5 +1,3 @@
-import { Elysia, t } from "elysia";
-
 import "@hs/endpoints/src/query";
 import "@hs/endpoints/src/server";
 import { IncompatibleRoomVersionError, NotFoundError } from "../errors";
@@ -17,10 +15,10 @@ export const makeJoinEventBuilder =
 	async (
 		roomId: string,
 		userId: string,
-		roomVersion: string,
+		roomVersions: string[],
 		origin: string,
 	) => {
-		if (roomVersion !== "10") {
+		if (!roomVersions.includes("10")) {
 			throw new IncompatibleRoomVersionError(
 				"Your homeserver does not support the features required to join this room",
 				{ roomVersion: "10" },
diff --git a/packages/homeserver/src/routes/federation/getMissingEvents.ts b/packages/homeserver/src/routes/federation/getMissingEvents.ts
index 2750a5c1..144b493d 100644
--- a/packages/homeserver/src/routes/federation/getMissingEvents.ts
+++ b/packages/homeserver/src/routes/federation/getMissingEvents.ts
@@ -31,9 +31,7 @@ export const getMissingEventsRoute = new Elysia().post(
 			body.limit,
 		);
 
-		return {
-			events,
-		};
+		return events;
 	},
 	{
 		params: t.Object(
@@ -69,9 +67,11 @@ export const getMissingEventsRoute = new Elysia().post(
 			},
 		),
 		detail: {
-			security: [{
-				'matrixAuth': []
-			}],
-		}
+			security: [
+				{
+					matrixAuth: [],
+				},
+			],
+		},
 	},
 );
diff --git a/packages/homeserver/src/routes/federation/makeJoin.ts b/packages/homeserver/src/routes/federation/makeJoin.ts
index 06fa493f..18d5119f 100644
--- a/packages/homeserver/src/routes/federation/makeJoin.ts
+++ b/packages/homeserver/src/routes/federation/makeJoin.ts
@@ -42,17 +42,19 @@ export const makeJoinRoute = new Elysia().get(
 				description: "The authorization header",
 			}),
 		}),
-		response: {
-			200: t.Object({}),
-			400: t.Object({}),
-			403: t.Object({}),
-			404: t.Object({}),
-		},
+		// response: {
+		// 	200: t.Object({}),
+		// 	400: t.Object({}),
+		// 	403: t.Object({}),
+		// 	404: t.Object({}),
+		// },
 		query: t.Object({
-			ver: t.String({
-				description:
-					"The version of the room where the user is being invited to.",
-			}),
+			ver: t.Array(
+				t.String({
+					description:
+						"The version of the room where the user is being invited to.",
+				}),
+			),
 		}),
 		params: t.Object(
 			{