diff --git a/apps/vscode/editor/package.json b/apps/vscode/editor/package.json
index 5421356b2..32c1b2405 100644
--- a/apps/vscode/editor/package.json
+++ b/apps/vscode/editor/package.json
@@ -52,7 +52,7 @@
 		"esbuild": "^0.16.7",
 		"fs-extra": "^11.1.0",
 		"lazyrepo": "0.0.0-alpha.26",
-		"nanoid": "^4.0.2",
+		"nanoid": "4.0.2",
 		"react": "^18.2.0",
 		"react-dom": "^18.2.0",
 		"tslib": "^2.4.0"
diff --git a/apps/vscode/extension/package.json b/apps/vscode/extension/package.json
index 64bc7f703..f5849918b 100644
--- a/apps/vscode/extension/package.json
+++ b/apps/vscode/extension/package.json
@@ -153,7 +153,7 @@
 	},
 	"gitHead": "4b1137849ad07da36fc8f0f19cb64e7535a79296",
 	"dependencies": {
-		"nanoid": "^4.0.1",
+		"nanoid": "4.0.2",
 		"node-fetch": "^2.0.0"
 	}
 }
diff --git a/packages/editor/api-report.md b/packages/editor/api-report.md
index 34f6bb7fc..20b66eeb3 100644
--- a/packages/editor/api-report.md
+++ b/packages/editor/api-report.md
@@ -523,9 +523,7 @@ export function applyRotationToSnapshotShapes({ delta, app, snapshot, stage, }:
 export interface AppOptions {
     config?: TldrawEditorConfig;
     getContainer: () => HTMLElement;
-    instanceId?: TLInstanceId;
     store: TLStore;
-    userId?: TLUserId;
 }
 
 // @public (undocumented)
diff --git a/packages/editor/package.json b/packages/editor/package.json
index 8f551758a..a6ca26ed7 100644
--- a/packages/editor/package.json
+++ b/packages/editor/package.json
@@ -59,7 +59,7 @@
 		"is-plain-object": "^5.0.0",
 		"lodash.throttle": "^4.1.1",
 		"lodash.uniq": "^4.5.0",
-		"nanoid": "^3.0.0"
+		"nanoid": "4.0.2"
 	},
 	"peerDependencies": {
 		"react": "^18",
diff --git a/packages/editor/src/lib/app/App.ts b/packages/editor/src/lib/app/App.ts
index d958e3b4c..42bc5a258 100644
--- a/packages/editor/src/lib/app/App.ts
+++ b/packages/editor/src/lib/app/App.ts
@@ -160,14 +160,6 @@ export interface AppOptions {
 	 * given, the body element will be used.
 	 */
 	getContainer: () => HTMLElement
-
-	/** The id of the current user. If not given, one will be generated. */
-	userId?: TLUserId
-	/**
-	 * The id of the app instance (e.g. a browser tab if the app will have only one tldraw app per
-	 * tab). If not given, one will be generated.
-	 */
-	instanceId?: TLInstanceId
 }
 
 /** @public */
diff --git a/packages/tlschema/package.json b/packages/tlschema/package.json
index 22e83fd35..de6be484c 100644
--- a/packages/tlschema/package.json
+++ b/packages/tlschema/package.json
@@ -62,7 +62,7 @@
 		"@tldraw/tlstore": "workspace:*",
 		"@tldraw/tlvalidate": "workspace:*",
 		"@tldraw/utils": "workspace:*",
-		"nanoid": "^3.0.0"
+		"nanoid": "4.0.2"
 	},
 	"peerDependencies": {
 		"signia": "*"
diff --git a/packages/tlstore/package.json b/packages/tlstore/package.json
index 52391e2f9..25e2820de 100644
--- a/packages/tlstore/package.json
+++ b/packages/tlstore/package.json
@@ -43,7 +43,7 @@
 	"dependencies": {
 		"@tldraw/utils": "workspace:*",
 		"lodash.isequal": "^4.5.0",
-		"nanoid": "^3.0.0"
+		"nanoid": "4.0.2"
 	},
 	"peerDependencies": {
 		"signia": "*"
diff --git a/public-yarn.lock b/public-yarn.lock
index 818f3ed45..adce0395d 100644
--- a/public-yarn.lock
+++ b/public-yarn.lock
@@ -4611,7 +4611,7 @@ __metadata:
     lazyrepo: 0.0.0-alpha.26
     lodash.throttle: ^4.1.1
     lodash.uniq: ^4.5.0
-    nanoid: ^3.0.0
+    nanoid: 4.0.2
     react-test-renderer: ^18.2.0
     resize-observer-polyfill: ^1.5.1
   peerDependencies:
@@ -4752,7 +4752,7 @@ __metadata:
     "@tldraw/utils": "workspace:*"
     kleur: ^4.1.5
     lazyrepo: 0.0.0-alpha.26
-    nanoid: ^3.0.0
+    nanoid: 4.0.2
   peerDependencies:
     signia: "*"
   languageName: unknown
@@ -4767,7 +4767,7 @@ __metadata:
     "@types/lodash.isequal": ^4.5.6
     lazyrepo: 0.0.0-alpha.26
     lodash.isequal: ^4.5.0
-    nanoid: ^3.0.0
+    nanoid: 4.0.2
     raf: ^3.4.1
   peerDependencies:
     signia: "*"
@@ -4874,7 +4874,7 @@ __metadata:
     esbuild: ^0.16.7
     fs-extra: ^11.1.0
     lazyrepo: 0.0.0-alpha.26
-    nanoid: ^4.0.2
+    nanoid: 4.0.2
     react: ^18.2.0
     react-dom: ^18.2.0
     tslib: ^2.4.0
@@ -16596,16 +16596,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"nanoid@npm:^3.0.0, nanoid@npm:^3.3.4, nanoid@npm:^3.3.6":
-  version: 3.3.6
-  resolution: "nanoid@npm:3.3.6"
-  bin:
-    nanoid: bin/nanoid.cjs
-  checksum: 7d0eda657002738aa5206107bd0580aead6c95c460ef1bdd0b1a87a9c7ae6277ac2e9b945306aaa5b32c6dcb7feaf462d0f552e7f8b5718abfc6ead5c94a71b3
-  languageName: node
-  linkType: hard
-
-"nanoid@npm:^4.0.1, nanoid@npm:^4.0.2":
+"nanoid@npm:4.0.2":
   version: 4.0.2
   resolution: "nanoid@npm:4.0.2"
   bin:
@@ -16614,6 +16605,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"nanoid@npm:^3.3.4, nanoid@npm:^3.3.6":
+  version: 3.3.6
+  resolution: "nanoid@npm:3.3.6"
+  bin:
+    nanoid: bin/nanoid.cjs
+  checksum: 7d0eda657002738aa5206107bd0580aead6c95c460ef1bdd0b1a87a9c7ae6277ac2e9b945306aaa5b32c6dcb7feaf462d0f552e7f8b5718abfc6ead5c94a71b3
+  languageName: node
+  linkType: hard
+
 "napi-build-utils@npm:^1.0.1":
   version: 1.0.2
   resolution: "napi-build-utils@npm:1.0.2"
@@ -20966,7 +20966,7 @@ __metadata:
     lazyrepo: 0.0.0-alpha.26
     lodash: ^4.17.21
     mocha: ^9.1.1
-    nanoid: ^4.0.1
+    nanoid: 4.0.2
     node-fetch: ^2.0.0
     process: ^0.11.10
     ts-loader: ^9.2.5