diff --git a/package.json b/package.json
index c2a1858..2945215 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "workspaces": [
-    "apps/*"
+    "apps/*",
+    "packages/*"
   ],
   "resolutions": {
     "react-native": "patch:react-native@npm%3A0.81.4#~/.yarn/patches/react-native+0.81.4.patch",
diff --git a/packages/shared/package.json b/packages/shared/package.json
new file mode 100644
index 0000000..fb9fe3e
--- /dev/null
+++ b/packages/shared/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "@solelog/shared",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "main": "./src/index.ts",
+  "types": "./src/index.ts",
+  "exports": {
+    ".": "./src/index.ts"
+  },
+  "dependencies": {
+    "zod": "^3.23.8"
+  }
+}
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
new file mode 100644
index 0000000..55bd6b0
--- /dev/null
+++ b/packages/shared/src/index.ts
@@ -0,0 +1,18 @@
+import { z } from 'zod';
+
+export const HealthResponse = z.object({
+  status: z.literal('ok'),
+});
+export type HealthResponse = z.infer<typeof HealthResponse>;
+
+export const PublicUser = z.object({
+  id: z.string(),
+  email: z.string().email(),
+  name: z.string(),
+});
+export type PublicUser = z.infer<typeof PublicUser>;
+
+export const MeResponse = z.object({
+  user: PublicUser,
+});
+export type MeResponse = z.infer<typeof MeResponse>;
diff --git a/packages/shared/tsconfig.json b/packages/shared/tsconfig.json
new file mode 100644
index 0000000..09611fd
--- /dev/null
+++ b/packages/shared/tsconfig.json
@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "strict": true,
+    "declaration": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "verbatimModuleSyntax": true
+  },
+  "include": ["src"]
+}
diff --git a/yarn.lock b/yarn.lock
index 61c3316..7fabe47 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6933,6 +6933,14 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@solelog/shared@workspace:packages/shared":
+  version: 0.0.0-use.local
+  resolution: "@solelog/shared@workspace:packages/shared"
+  dependencies:
+    zod: "npm:^3.23.8"
+  languageName: unknown
+  linkType: soft
+
 "@standard-schema/spec@npm:^1.0.0, @standard-schema/spec@npm:^1.1.0":
   version: 1.1.0
   resolution: "@standard-schema/spec@npm:1.1.0"
@@ -20643,7 +20651,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"zod@npm:^3.25.76":
+"zod@npm:^3.23.8, zod@npm:^3.25.76":
   version: 3.25.76
   resolution: "zod@npm:3.25.76"
   checksum: 10c0/5718ec35e3c40b600316c5b4c5e4976f7fee68151bc8f8d90ec18a469be9571f072e1bbaace10f1e85cf8892ea12d90821b200e980ab46916a6166a4260a983c