diff --git a/apps/env/20260130-000000/index.tsx b/apps/env/20260130-000000/index.tsx
index 1d1347a..36fd28b 100644
--- a/apps/env/20260130-000000/index.tsx
+++ b/apps/env/20260130-000000/index.tsx
@@ -7,9 +7,38 @@ import type { Child } from 'hono/jsx'
 
 const TOES_DIR = process.env.TOES_DIR ?? join(process.env.HOME!, '.toes')
 const ENV_DIR = join(TOES_DIR, 'env')
+const GLOBAL_ENV_PATH = join(ENV_DIR, '_global.env')
 
 const app = new Hype({ prettyHTML: false })
 
+const Badge = define('Badge', {
+  base: 'span',
+  fontSize: '11px',
+  padding: '2px 6px',
+  borderRadius: '3px',
+  backgroundColor: theme('colors-bgSubtle'),
+  color: theme('colors-textMuted'),
+  fontFamily: theme('fonts-sans'),
+  fontWeight: 'normal',
+  marginLeft: '8px',
+})
+
+const Button = define('Button', {
+  base: 'button',
+  padding: '6px 12px',
+  fontSize: '13px',
+  borderRadius: theme('radius-md'),
+  border: `1px solid ${theme('colors-border')}`,
+  backgroundColor: theme('colors-bgElement'),
+  color: theme('colors-text'),
+  cursor: 'pointer',
+  states: {
+    ':hover': {
+      backgroundColor: theme('colors-bgHover'),
+    },
+  },
+})
+
 const Container = define('Container', {
   fontFamily: theme('fonts-sans'),
   padding: '20px',
@@ -19,13 +48,34 @@ const Container = define('Container', {
   color: theme('colors-text'),
 })
 
-const EnvList = define('EnvList', {
-  listStyle: 'none',
-  padding: 0,
-  margin: 0,
-  border: `1px solid ${theme('colors-border')}`,
+const DangerButton = define('DangerButton', {
+  base: 'button',
+  padding: '6px 12px',
+  fontSize: '13px',
   borderRadius: theme('radius-md'),
-  overflow: 'hidden',
+  border: 'none',
+  backgroundColor: theme('colors-error'),
+  color: 'white',
+  cursor: 'pointer',
+  states: {
+    ':hover': {
+      opacity: 0.9,
+    },
+  },
+})
+
+const EmptyState = define('EmptyState', {
+  padding: '30px',
+  textAlign: 'center',
+  color: theme('colors-textMuted'),
+  backgroundColor: theme('colors-bgSubtle'),
+  borderRadius: theme('radius-md'),
+})
+
+const EnvActions = define('EnvActions', {
+  display: 'flex',
+  gap: '8px',
+  flexShrink: 0,
 })
 
 const EnvItem = define('EnvItem', {
@@ -49,6 +99,15 @@ const EnvKey = define('EnvKey', {
   color: theme('colors-text'),
 })
 
+const EnvList = define('EnvList', {
+  listStyle: 'none',
+  padding: 0,
+  margin: 0,
+  border: `1px solid ${theme('colors-border')}`,
+  borderRadius: theme('radius-md'),
+  overflow: 'hidden',
+})
+
 const EnvValue = define('EnvValue', {
   fontFamily: theme('fonts-mono'),
   fontSize: '14px',
@@ -59,42 +118,12 @@ const EnvValue = define('EnvValue', {
   whiteSpace: 'nowrap',
 })
 
-const EnvActions = define('EnvActions', {
-  display: 'flex',
-  gap: '8px',
-  flexShrink: 0,
-})
-
-const Button = define('Button', {
-  base: 'button',
-  padding: '6px 12px',
-  fontSize: '13px',
-  borderRadius: theme('radius-md'),
-  border: `1px solid ${theme('colors-border')}`,
+const ErrorBox = define('ErrorBox', {
+  color: theme('colors-error'),
+  padding: '20px',
   backgroundColor: theme('colors-bgElement'),
-  color: theme('colors-text'),
-  cursor: 'pointer',
-  states: {
-    ':hover': {
-      backgroundColor: theme('colors-bgHover'),
-    },
-  },
-})
-
-const DangerButton = define('DangerButton', {
-  base: 'button',
-  padding: '6px 12px',
-  fontSize: '13px',
   borderRadius: theme('radius-md'),
-  border: 'none',
-  backgroundColor: theme('colors-error'),
-  color: 'white',
-  cursor: 'pointer',
-  states: {
-    ':hover': {
-      opacity: 0.9,
-    },
-  },
+  margin: '20px 0',
 })
 
 const Form = define('Form', {
@@ -107,6 +136,12 @@ const Form = define('Form', {
   borderRadius: theme('radius-md'),
 })
 
+const Hint = define('Hint', {
+  fontSize: '12px',
+  color: theme('colors-textMuted'),
+  marginTop: '10px',
+})
+
 const Input = define('Input', {
   base: 'input',
   flex: 1,
@@ -125,27 +160,54 @@ const Input = define('Input', {
   },
 })
 
-const ErrorBox = define('ErrorBox', {
-  color: theme('colors-error'),
-  padding: '20px',
-  backgroundColor: theme('colors-bgElement'),
-  borderRadius: theme('radius-md'),
-  margin: '20px 0',
+const Tab = define('Tab', {
+  base: 'a',
+  padding: '8px 16px',
+  fontSize: '13px',
+  fontFamily: theme('fonts-sans'),
+  color: theme('colors-textMuted'),
+  textDecoration: 'none',
+  borderBottom: '2px solid transparent',
+  cursor: 'pointer',
+  states: {
+    ':hover': {
+      color: theme('colors-text'),
+    },
+  },
 })
 
-const EmptyState = define('EmptyState', {
-  padding: '30px',
-  textAlign: 'center',
-  color: theme('colors-textMuted'),
-  backgroundColor: theme('colors-bgSubtle'),
-  borderRadius: theme('radius-md'),
+const TabActive = define('TabActive', {
+  base: 'a',
+  padding: '8px 16px',
+  fontSize: '13px',
+  fontFamily: theme('fonts-sans'),
+  color: theme('colors-text'),
+  textDecoration: 'none',
+  borderBottom: `2px solid ${theme('colors-primary')}`,
+  fontWeight: 'bold',
+  cursor: 'default',
 })
 
+const TabBar = define('TabBar', {
+  display: 'flex',
+  gap: '4px',
+  borderBottom: `1px solid ${theme('colors-border')}`,
+  marginBottom: '15px',
+})
+
+interface EnvVar {
+  key: string
+  value: string
+}
+
 interface LayoutProps {
   title: string
   children: Child
 }
 
+const appEnvPath = (appName: string) =>
+  join(ENV_DIR, `${appName}.env`)
+
 function Layout({ title, children }: LayoutProps) {
   return (
     <html>
@@ -166,29 +228,6 @@ function Layout({ title, children }: LayoutProps) {
   )
 }
 
-const clientScript = `
-document.querySelectorAll('[data-reveal]').forEach(btn => {
-  btn.addEventListener('click', () => {
-    const valueEl = btn.closest('[data-env-item]').querySelector('[data-value]');
-    const hidden = valueEl.dataset.hidden;
-    if (hidden) {
-      valueEl.textContent = hidden;
-      valueEl.dataset.hidden = '';
-      btn.textContent = 'Hide';
-    } else {
-      valueEl.dataset.hidden = valueEl.textContent;
-      valueEl.textContent = '••••••••';
-      btn.textContent = 'Reveal';
-    }
-  });
-});
-`
-
-interface EnvVar {
-  key: string
-  value: string
-}
-
 function ensureEnvDir() {
   if (!existsSync(ENV_DIR)) {
     mkdirSync(ENV_DIR, { recursive: true })
@@ -229,9 +268,23 @@ function writeEnvFile(path: string, vars: EnvVar[]) {
   writeFileSync(path, content)
 }
 
-function appEnvPath(appName: string): string {
-  return join(ENV_DIR, `${appName}.env`)
-}
+const clientScript = `
+document.querySelectorAll('[data-reveal]').forEach(btn => {
+  btn.addEventListener('click', () => {
+    const valueEl = btn.closest('[data-env-item]').querySelector('[data-value]');
+    const hidden = valueEl.dataset.hidden;
+    if (hidden) {
+      valueEl.textContent = hidden;
+      valueEl.dataset.hidden = '';
+      btn.textContent = 'Hide';
+    } else {
+      valueEl.dataset.hidden = valueEl.textContent;
+      valueEl.textContent = '••••••••';
+      btn.textContent = 'Reveal';
+    }
+  });
+});
+`
 
 app.get('/ok', c => c.text('ok'))
 
@@ -250,17 +303,67 @@ app.get('/', async c => {
     )
   }
 
+  const tab = c.req.query('tab') === 'global' ? 'global' : 'app'
+  const appUrl = `/?app=${appName}`
+  const globalUrl = `/?app=${appName}&tab=global`
+
+  if (tab === 'global') {
+    const globalVars = parseEnvFile(GLOBAL_ENV_PATH)
+
+    return c.html(
+      <Layout title={`Env - Global`}>
+        <TabBar>
+          <Tab href={appUrl}>App</Tab>
+          <TabActive href={globalUrl}>Global</TabActive>
+        </TabBar>
+        {globalVars.length === 0 ? (
+          <EmptyState>No global environment variables</EmptyState>
+        ) : (
+          <EnvList>
+            {globalVars.map(v => (
+              <EnvItem data-env-item>
+                <EnvKey>{v.key}</EnvKey>
+                <EnvValue data-value data-hidden={v.value}>{'••••••••'}</EnvValue>
+                <EnvActions>
+                  <Button data-reveal>Reveal</Button>
+                  <form method="post" action={`/delete-global?app=${appName}&key=${v.key}`} style="margin:0">
+                    <DangerButton type="submit">Delete</DangerButton>
+                  </form>
+                </EnvActions>
+              </EnvItem>
+            ))}
+          </EnvList>
+        )}
+        <Form method="POST" action={`/set-global?app=${appName}`}>
+          <Input type="text" name="key" placeholder="KEY" required />
+          <Input type="text" name="value" placeholder="value" required />
+          <Button type="submit">Add</Button>
+        </Form>
+        <Hint>Global vars are available to all apps. Changes take effect on next app restart.</Hint>
+      </Layout>
+    )
+  }
+
   const appVars = parseEnvFile(appEnvPath(appName))
+  const globalVars = parseEnvFile(GLOBAL_ENV_PATH)
+  const globalKeys = new Set(globalVars.map(v => v.key))
 
   return c.html(
     <Layout title={`Env - ${appName}`}>
-      {appVars.length === 0 ? (
+      <TabBar>
+        <TabActive href={appUrl}>App</TabActive>
+        <Tab href={globalUrl}>Global</Tab>
+      </TabBar>
+      {appVars.length === 0 && globalKeys.size === 0 ? (
         <EmptyState>No environment variables</EmptyState>
       ) : (
         <EnvList>
           {appVars.map(v => (
             <EnvItem data-env-item>
-              <EnvKey>{v.key}</EnvKey>
+              <EnvKey>
+                {v.key}
+                {globalKeys.has(v.key) && <Badge>overrides global</Badge>}
+              </EnvKey>
               <EnvValue data-value data-hidden={v.value}>{'••••••••'}</EnvValue>
               <EnvActions>
                 <Button data-reveal>Reveal</Button>
@@ -270,6 +373,18 @@ app.get('/', async c => {
               </EnvActions>
             </EnvItem>
           ))}
+          {globalVars.filter(v => !appVars.some(a => a.key === v.key)).map(v => (
+            <EnvItem data-env-item>
+              <EnvKey>
+                {v.key}
+                <Badge>global</Badge>
+              </EnvKey>
+              <EnvValue data-value data-hidden={v.value}>{'••••••••'}</EnvValue>
+              <EnvActions>
+                <Button data-reveal>Reveal</Button>
+              </EnvActions>
+            </EnvItem>
+          ))}
         </EnvList>
       )}
       <Form method="POST" action={`/set?app=${appName}`}>
@@ -316,4 +431,37 @@ app.post('/delete', async c => {
   return c.redirect(`/?app=${appName}`)
 })
 
+app.post('/set-global', async c => {
+  const appName = c.req.query('app')
+  if (!appName) return c.text('Missing app', 400)
+
+  const body = await c.req.parseBody()
+  const key = String(body.key).trim().toUpperCase()
+  const value = String(body.value)
+
+  if (!key) return c.text('Missing key', 400)
+
+  const vars = parseEnvFile(GLOBAL_ENV_PATH)
+  const existing = vars.findIndex(v => v.key === key)
+
+  if (existing >= 0) {
+    vars[existing]!.value = value
+  } else {
+    vars.push({ key, value })
+  }
+
+  writeEnvFile(GLOBAL_ENV_PATH, vars)
+  return c.redirect(`/?app=${appName}&tab=global`)
+})
+
+app.post('/delete-global', async c => {
+  const appName = c.req.query('app')
+  const key = c.req.query('key')
+  if (!appName || !key) return c.text('Missing app or key', 400)
+
+  const vars = parseEnvFile(GLOBAL_ENV_PATH).filter(v => v.key !== key)
+  writeEnvFile(GLOBAL_ENV_PATH, vars)
+  return c.redirect(`/?app=${appName}&tab=global`)
+})
+
 export default app.defaults
diff --git a/src/server/api/apps.ts b/src/server/api/apps.ts
index 30059af..a53ce6a 100644
--- a/src/server/api/apps.ts
+++ b/src/server/api/apps.ts
@@ -221,8 +221,9 @@ interface EnvVar {
   value: string
 }
 
-const envDir = () => join(TOES_DIR, 'env')
 const appEnvPath = (appName: string) => join(envDir(), `${appName}.env`)
+const envDir = () => join(TOES_DIR, 'env')
+const globalEnvPath = () => join(envDir(), '_global.env')
 
 function parseEnvFile(path: string): EnvVar[] {
   if (!existsSync(path)) return []
@@ -251,7 +252,49 @@ function writeEnvFile(path: string, vars: EnvVar[]) {
   writeFileSync(path, content)
 }
 
-// Get env vars for an app
+// Global env vars
+router.get('/env', c => {
+  return c.json(parseEnvFile(globalEnvPath()))
+})
+
+router.post('/env', async c => {
+  let body: { key?: string, value?: string }
+  try {
+    body = await c.req.json()
+  } catch {
+    return c.json({ ok: false, error: 'Invalid JSON body' }, 400)
+  }
+
+  const key = body.key?.trim().toUpperCase()
+  const value = body.value ?? ''
+
+  if (!key) return c.json({ ok: false, error: 'Key is required' }, 400)
+
+  const path = globalEnvPath()
+  const vars = parseEnvFile(path)
+  const existing = vars.findIndex(v => v.key === key)
+
+  if (existing >= 0) {
+    vars[existing]!.value = value
+  } else {
+    vars.push({ key, value })
+  }
+
+  writeEnvFile(path, vars)
+  return c.json({ ok: true })
+})
+
+router.delete('/env/:key', c => {
+  const key = c.req.param('key')
+  if (!key) return c.json({ error: 'Key required' }, 400)
+
+  const path = globalEnvPath()
+  const vars = parseEnvFile(path).filter(v => v.key !== key.toUpperCase())
+  writeEnvFile(path, vars)
+  return c.json({ ok: true })
+})
+
+// App env vars
 router.get('/:app/env', c => {
   const appName = c.req.param('app')
   if (!appName) return c.json({ error: 'App not found' }, 404)
diff --git a/src/server/apps.ts b/src/server/apps.ts
index 3910355..0badfc8 100644
--- a/src/server/apps.ts
+++ b/src/server/apps.ts
@@ -512,6 +512,7 @@ function loadAppEnv(appName: string): Record<string, string> {
     }
   }
 
+  parseEnvFile(join(envDir, '_global.env'))
   parseEnvFile(join(envDir, `${appName}.env`))
 
   return env